patch

Feature/compile time patten parsing

.github/workflows/cmake-multi-platform.yml

@@ -107,7 +107,7 @@ jobs:
             -DOMATH_BUILD_TESTS=ON \
             -DOMATH_BUILD_BENCHMARK=OFF \
             -DOMATH_ENABLE_COVERAGE=${{ matrix.coverage == true && 'ON' || 'OFF' }} \
-            -DVCPKG_MANIFEST_FEATURES="imgui;avx2;tests;lua"
+            -DVCPKG_MANIFEST_FEATURES="imgui;avx2;tests;lua;gcem"
 
       - name: Build
         shell: bash

.github/workflows/docs.yml

@@ -37,7 +37,7 @@ jobs:
           python-version: '3.x'
 
       - name: Install mkdocs and dependencies
-        run: pip install mkdocs mkdocs-material
+        run: pip install mkdocs mkdocs-bootswatch
 
       - name: Build documentation
         run: mkdocs build --strict

.github/workflows/release.yml

@@ -28,7 +28,7 @@ jobs:
           python-version: '3.x'
 
       - name: Install mkdocs and dependencies
-        run: pip install mkdocs mkdocs-material
+        run: pip install mkdocs mkdocs-bootswatch
 
       - name: Build documentation
         run: mkdocs build --strict

CMakeLists.txt

@@ -33,6 +33,7 @@ option(OMATH_ENABLE_FORCE_INLINE
 option(OMATH_ENABLE_LUA
         "omath bindings for lua" OFF)
 option(OMATH_ENABLE_HOOKING "omath will HooksManager that can hook DirectX/OpenGL automatically" OFF)
+option(OMATH_USE_GCEM "omath will use gcem library to make more functions/methods constexpr" OFF)
 
 if(VCPKG_MANIFEST_FEATURES)
     foreach(omath_feature IN LISTS VCPKG_MANIFEST_FEATURES)
@@ -50,6 +51,8 @@ if(VCPKG_MANIFEST_FEATURES)
             set(OMATH_ENABLE_LUA ON)
         elseif(omath_feature STREQUAL "hooking")
             set(OMATH_ENABLE_HOOKING ON)
+        elseif (omath_feature STREQUAL "gcem")
+            set(OMATH_USE_GCEM ON)
         endif()
 
     endforeach()
@@ -80,6 +83,7 @@ if(${PROJECT_IS_TOP_LEVEL})
     message(STATUS "[${PROJECT_NAME}]: Coverage feature status ${OMATH_ENABLE_COVERAGE}")
     message(STATUS "[${PROJECT_NAME}]: Valgrind feature status ${OMATH_ENABLE_VALGRIND}")
     message(STATUS "[${PROJECT_NAME}]: Lua feature status ${OMATH_ENABLE_LUA}")
+    message(STATUS "[${PROJECT_NAME}]: Gcem feature status ${OMATH_USE_GCEM}")
 endif()
 
 if(OMATH_STATIC_MSVC_RUNTIME_LIBRARY)
@@ -120,6 +124,12 @@ if (OMATH_ENABLE_HOOKING)
     endif ()
 endif ()
 
+
+if (OMATH_USE_GCEM)
+    target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_USE_GCEM)
+    find_package(gcem CONFIG REQUIRED)
+    target_link_libraries(${PROJECT_NAME} PUBLIC gcem)
+endif ()
 add_library(${PROJECT_NAME}::${PROJECT_NAME} ALIAS ${PROJECT_NAME})
 
 target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_VERSION="${PROJECT_VERSION}")

CMakePresets.json

@@ -57,7 +57,7 @@
       "inherits": ["windows-base", "vcpkg-base"],
       "cacheVariables": {
         "VCPKG_TARGET_TRIPLET": "x64-windows-static",
-        "VCPKG_MANIFEST_FEATURES": "tests;imgui;avx2;examples;hooking",
+        "VCPKG_MANIFEST_FEATURES": "tests;imgui;avx2;examples;hooking;gcem",
         "OMATH_STATIC_MSVC_RUNTIME_LIBRARY": "ON"
       }
     },
@@ -239,7 +239,7 @@
       "hidden": true,
       "inherits": ["darwin-base", "vcpkg-base"],
       "cacheVariables": {
-        "VCPKG_MANIFEST_FEATURES": "tests;imgui;avx2;examples;lua"
+        "VCPKG_MANIFEST_FEATURES": "tests;imgui;avx2;examples;lua;gcem"
       }
     },
     {

VERSION

@@ -1 +1 @@
-5.2.0
+5.3.0

docs/styles/custom-header.css

@@ -1,18 +1,11 @@
-/* Material header tweaks */
+/* Widen the navbar container */
-.md-header,
+.navbar .container {
-.md-tabs {
+    max-width: 100%;   /* adjust to your target width */
-    background-color: #101014;
+    width: 95%;
 }
 
-.md-header {
+/* Tighter spacing between navbar items */
-    border-bottom: 1px solid rgba(255, 152, 0, 0.28);
+.navbar-nav > li > a {
-}
+    padding-left: 8px;
-
+    padding-right: 8px;
-.md-tabs {
-    border-bottom: 1px solid rgba(255, 152, 0, 0.16);
-}
-
-.md-tabs__link--active,
-.md-tabs__link:hover {
-    color: #ffb74d;
 }

docs/styles/links.css

@@ -1,44 +1,65 @@
-/* Material dark palette overrides */
+/* Normal links */
-[data-md-color-scheme="slate"] {
+a {
-    --md-default-bg-color: #0f1117;
+    color: orange;
-    --md-default-fg-color: #e8eaed;
-    --md-primary-fg-color: #101014;
-    --md-primary-fg-color--light: #1a1a21;
-    --md-primary-fg-color--dark: #09090d;
-    --md-accent-fg-color: #ff9800;
-    --md-accent-fg-color--transparent: rgba(255, 152, 0, 0.14);
-    --md-typeset-a-color: #ffb74d;
-    --md-code-bg-color: #171a22;
-    --md-code-fg-color: #f5f7fa;
 }
 
-.md-typeset a {
+
-    color: var(--md-typeset-a-color);
+/* On hover/focus */
+a:hover,
+a:focus {
+    color: #ff9900; /* a slightly different orange, optional */
+}
+/* Navbar background */
+.navbar,
+.navbar-default,
+.navbar-inverse {
+    background-color: #a26228   !important;  /* your orange */
+    border-color: #ff6600 !important;
 }
 
-.md-typeset a:hover,
+/* Navbar brand + links */
-.md-typeset a:focus {
+.navbar .navbar-brand,
-    color: #ffd180;
+.navbar .navbar-nav > li > a {
+    color: #ffffff !important;
 }
 
-.md-tabs__item--active > .md-tabs__link,
+/* Active and hover states */
-.md-tabs__link:hover,
+.navbar .navbar-nav > .active > a,
-.md-nav__link:hover,
+.navbar .navbar-nav > .active > a:focus,
-.md-nav__link:focus,
+.navbar .navbar-nav > .active > a:hover,
-.md-nav__link--active,
+.navbar .navbar-nav > li > a:hover,
-.md-nav__item .md-nav__link--active {
+.navbar .navbar-nav > li > a:focus {
-    color: #ffb74d;
+    color: #ffffff !important;
+}
+/* === DROPDOWN MENU BACKGROUND === */
+.navbar .dropdown-menu {
+    border-color: #ff6600 !important;
 }
 
-.md-typeset .md-button {
+/* Caret icon (the little triangle) */
-    border-color: #ff9800;
+.navbar .dropdown-toggle .caret {
-    color: #ffb74d;
+    border-top-color: #ffffff !important;
+    border-bottom-color: #ffffff !important;
 }
 
-.md-typeset .md-button:hover,
+/* === BOOTSTRAP 3 STYLE ITEMS (mkdocs + bootswatch darkly often use this) === */
-.md-typeset .md-button:focus,
+.navbar .dropdown-menu > li > a {
-.md-typeset .md-button--primary {
+    color: #ffffff !important;
-    background-color: #ff9800;
+}
-    border-color: #ff9800;
+
-    color: #111111;
+.navbar .dropdown-menu > li > a:hover,
+.navbar .dropdown-menu > li > a:focus {
+    background-color: #e65c00 !important; /* darker orange on hover */
+    color: #ffffff !important;
+}
+
+/* === BOOTSTRAP 4+ STYLE ITEMS (if your theme uses .dropdown-item) === */
+.navbar .dropdown-item {
+    color: #ffffff !important;
+}
+
+.navbar .dropdown-item:hover,
+.navbar .dropdown-item:focus {
+    background-color: #e65c00 !important;
+    color: #ffffff !important;
 }

include/omath/engines/cry_engine/formulas.hpp

@@ -8,31 +8,81 @@
 namespace omath::cry_engine
 {
     [[nodiscard]]
-    Vector3<float> forward_vector(const ViewAngles& angles) noexcept;
+    inline OMATH_CONSTEXPR Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept
+    {
+        return mat_rotation_axis_z<float, MatStoreType::ROW_MAJOR>(angles.yaw)
+               * mat_rotation_axis_y<float, MatStoreType::ROW_MAJOR>(angles.roll)
+               * mat_rotation_axis_x<float, MatStoreType::ROW_MAJOR>(angles.pitch);
+    }
 
     [[nodiscard]]
-    Vector3<float> right_vector(const ViewAngles& angles) noexcept;
+    inline OMATH_CONSTEXPR Vector3<float> forward_vector(const ViewAngles& angles) noexcept
+    {
+        const auto vec = rotation_matrix(angles) * mat_column_from_vector(k_abs_forward);
+
+        return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
+    }
 
     [[nodiscard]]
-    Vector3<float> up_vector(const ViewAngles& angles) noexcept;
+    inline OMATH_CONSTEXPR Vector3<float> right_vector(const ViewAngles& angles) noexcept
+    {
+        const auto vec = rotation_matrix(angles) * mat_column_from_vector(k_abs_right);
 
-    [[nodiscard]] Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
+        return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
+    }
 
     [[nodiscard]]
-    Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept;
+    inline OMATH_CONSTEXPR Vector3<float> up_vector(const ViewAngles& angles) noexcept
+    {
+        const auto vec = rotation_matrix(angles) * mat_column_from_vector(k_abs_up);
+
+        return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
+    }
 
     [[nodiscard]]
-    Vector3<float> extract_origin(const Mat4X4& mat) noexcept;
+    inline OMATH_CONSTEXPR Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept
+    {
+        return mat_camera_view<float, MatStoreType::ROW_MAJOR>(forward_vector(angles), right_vector(angles),
+                                                               up_vector(angles), cam_origin);
+    }
 
     [[nodiscard]]
-    Vector3<float> extract_scale(const Mat4X4& mat) noexcept;
+    inline OMATH_CONSTEXPR Vector3<float> extract_origin(const Mat4X4& mat) noexcept
+    {
+        return mat_extract_origin(mat);
+    }
 
     [[nodiscard]]
-    ViewAngles extract_rotation_angles(const Mat4X4& mat) noexcept;
+    inline OMATH_CONSTEXPR Vector3<float> extract_scale(const Mat4X4& mat) noexcept
+    {
+        return mat_extract_scale(mat);
+    }
 
     [[nodiscard]]
-    Mat4X4 calc_perspective_projection_matrix(float field_of_view, float aspect_ratio, float near, float far,
+    inline OMATH_CONSTEXPR ViewAngles extract_rotation_angles(const Mat4X4& mat) noexcept
-                                             NDCDepthRange ndc_depth_range = NDCDepthRange::ZERO_TO_ONE) noexcept;
+    {
+        const auto angles = mat_extract_rotation_zyx(mat);
+        return {
+                PitchAngle::from_degrees(angles.x),
+                YawAngle::from_degrees(angles.z),
+                RollAngle::from_degrees(angles.y),
+        };
+    }
+    [[nodiscard]]
+    inline OMATH_CONSTEXPR Mat4X4 calc_perspective_projection_matrix(
+            const float field_of_view, const float aspect_ratio, const float near, const float far,
+            const NDCDepthRange ndc_depth_range = NDCDepthRange::ZERO_TO_ONE) noexcept
+    {
+        if (ndc_depth_range == NDCDepthRange::ZERO_TO_ONE)
+            return mat_perspective_left_handed_vertical_fov<float, MatStoreType::ROW_MAJOR, NDCDepthRange::ZERO_TO_ONE>(
+                    field_of_view, aspect_ratio, near, far);
+
+        if (ndc_depth_range == NDCDepthRange::NEGATIVE_ONE_TO_ONE)
+            return mat_perspective_left_handed_vertical_fov<float, MatStoreType::ROW_MAJOR,
+                                                            NDCDepthRange::NEGATIVE_ONE_TO_ONE>(
+                    field_of_view, aspect_ratio, near, far);
+        std::unreachable();
+    }
 
     template<class FloatingType>
     requires std::is_floating_point_v<FloatingType>

include/omath/engines/cry_engine/traits/camera_trait.hpp

@@ -4,21 +4,41 @@
 
 #pragma once
 #include "omath/engines/cry_engine/formulas.hpp"
+#include "omath/internal/optional_constexpr_math.hpp"
 #include "omath/projection/camera.hpp"
-
 namespace omath::cry_engine
 {
     class CameraTrait final
     {
     public:
         [[nodiscard]]
-        static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept;
+        OMATH_CONSTEXPR static ViewAngles calc_look_at_angle(const Vector3<float>& cam_origin,
+                                                             const Vector3<float>& look_at) noexcept
+        {
+            const auto direction = (look_at - cam_origin).normalized();
+#ifdef OMATH_USE_GCEM
+            return {PitchAngle::from_radians(gcem::asin(direction.z)),
+                    YawAngle::from_radians(-gcem::atan2(direction.x, direction.y)), RollAngle::from_radians(0.f)};
+#else
+            return {PitchAngle::from_radians(std::asin(direction.z)),
+                    YawAngle::from_radians(-std::atan2(direction.x, direction.y)), RollAngle::from_radians(0.f)};
+#endif
+        }
 
         [[nodiscard]]
-        static Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept;
+        OMATH_CONSTEXPR static Mat4X4 calc_view_matrix(const ViewAngles& angles,
+                                                       const Vector3<float>& cam_origin) noexcept
+        {
+            return cry_engine::calc_view_matrix(angles, cam_origin);
+        }
         [[nodiscard]]
-        static Mat4X4 calc_projection_matrix(const projection::FieldOfView& fov, const projection::ViewPort& view_port,
+        OMATH_CONSTEXPR static Mat4X4
-                                             float near, float far, NDCDepthRange ndc_depth_range) noexcept;
+        calc_projection_matrix(const projection::FieldOfView& fov, const projection::ViewPort& view_port,
+                               const float near, const float far, const NDCDepthRange ndc_depth_range) noexcept
+        {
+            return calc_perspective_projection_matrix(fov.as_degrees(), view_port.aspect_ratio(), near, far,
+                                                      ndc_depth_range);
+        }
     };
 
 } // namespace omath::cry_engine

include/omath/internal/optional_constexpr_math.hpp

@@ -0,0 +1,12 @@
+//
+// Created by orange on 6/11/2026.
+//
+#pragma once
+
+
+#ifdef OMATH_USE_GCEM
+#include <gcem.hpp>
+#define OMATH_CONSTEXPR constexpr
+#else
+#define OMATH_CONSTEXPR
+#endif

include/omath/linear_algebra/mat.hpp

@@ -10,6 +10,7 @@
 #include <numeric>
 #include <sstream>
 #include <stdexcept>
+#include <type_traits>
 #include <utility>
 
 #ifdef OMATH_USE_AVX2
@@ -149,7 +150,8 @@ namespace omath
             }
         }
 
-        [[nodiscard("You must use element reference")]] constexpr Type& at(const size_t row_index, const size_t column_index)
+        [[nodiscard("You must use element reference")]] constexpr Type& at(const size_t row_index,
+                                                                           const size_t column_index)
         {
             return const_cast<Type&>(std::as_const(*this).at(row_index, column_index));
         }
@@ -176,6 +178,13 @@ namespace omath
         operator*(const Mat<Columns, OtherColumns, Type, StoreType>& other) const
         {
 #ifdef OMATH_USE_AVX2
+            if (std::is_constant_evaluated())
+            {
+                if constexpr (StoreType == MatStoreType::ROW_MAJOR)
+                    return cache_friendly_multiply_row_major(other);
+                else if constexpr (StoreType == MatStoreType::COLUMN_MAJOR)
+                    return cache_friendly_multiply_col_major(other);
+            }
             if constexpr (StoreType == MatStoreType::ROW_MAJOR)
                 return avx_multiply_row_major(other);
             else if constexpr (StoreType == MatStoreType::COLUMN_MAJOR)
@@ -622,10 +631,14 @@ namespace omath
 
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
     [[nodiscard("You must use extracted scale")]]
-    Vector3<Type> mat_extract_scale(const Mat<4, 4, Type, St>& mat) noexcept
+    OMATH_CONSTEXPR Vector3<Type> mat_extract_scale(const Mat<4, 4, Type, St>& mat) noexcept
     {
         auto column_length = [](const Type x, const Type y, const Type z) {
+#ifdef OMATH_USE_GCEM
+            return static_cast<Type>(gcem::sqrt(x * x + y * y + z * z));
+#else
             return static_cast<Type>(std::sqrt(x * x + y * y + z * z));
+#endif
         };
 
         const auto scale_x = column_length(mat.at(0, 0), mat.at(1, 0), mat.at(2, 0));
@@ -635,9 +648,15 @@ namespace omath
         constexpr auto epsilon = std::numeric_limits<Type>::epsilon();
 
         return {
+#ifdef OMATH_USE_GCEM
+                gcem::abs(scale_x) < epsilon ? Type{1} : scale_x,
+                gcem::abs(scale_y) < epsilon ? Type{1} : scale_y,
+                gcem::abs(scale_z) < epsilon ? Type{1} : scale_z,
+#else
                 std::abs(scale_x) < epsilon ? Type{1} : scale_x,
                 std::abs(scale_y) < epsilon ? Type{1} : scale_y,
                 std::abs(scale_z) < epsilon ? Type{1} : scale_z,
+#endif
         };
     }
 
@@ -654,15 +673,21 @@ namespace omath
         const auto m22 = mat.at(2, 2) / scale.z;
 
         return {
+#ifdef OMATH_USE_GCEM
+                angles::radians_to_degrees(gcem::atan2(m21, m22)),
+                angles::radians_to_degrees(gcem::asin(std::clamp(-m20, Type{-1}, Type{1}))),
+                angles::radians_to_degrees(gcem::atan2(m10, m00)),
+#else
                 angles::radians_to_degrees(std::atan2(m21, m22)),
                 angles::radians_to_degrees(std::asin(std::clamp(-m20, Type{-1}, Type{1}))),
                 angles::radians_to_degrees(std::atan2(m10, m00)),
+#endif
         };
     }
 
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, class Angle>
     [[nodiscard("You must use rotation matrix")]]
-    Mat<4, 4, Type, St> mat_rotation_axis_x(const Angle& angle) noexcept
+    OMATH_CONSTEXPR Mat<4, 4, Type, St> mat_rotation_axis_x(const Angle& angle) noexcept
     {
         return
         {
@@ -675,7 +700,7 @@ namespace omath
 
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, class Angle>
     [[nodiscard("You must use rotation matrix")]]
-    Mat<4, 4, Type, St> mat_rotation_axis_y(const Angle& angle) noexcept
+    OMATH_CONSTEXPR Mat<4, 4, Type, St> mat_rotation_axis_y(const Angle& angle) noexcept
     {
         return
         {
@@ -688,7 +713,7 @@ namespace omath
 
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR, class Angle>
     [[nodiscard("You must use rotation matrix")]]
-    Mat<4, 4, Type, St> mat_rotation_axis_z(const Angle& angle) noexcept
+    OMATH_CONSTEXPR Mat<4, 4, Type, St> mat_rotation_axis_z(const Angle& angle) noexcept
     {
         return
         {
@@ -701,7 +726,7 @@ namespace omath
 
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR>
     [[nodiscard("You must use camera view matrix")]]
-    static Mat<4, 4, Type, St> mat_camera_view(const Vector3<Type>& forward, const Vector3<Type>& right,
+    OMATH_CONSTEXPR static Mat<4, 4, Type, St> mat_camera_view(const Vector3<Type>& forward, const Vector3<Type>& right,
                                                const Vector3<Type>& up, const Vector3<Type>& camera_origin) noexcept
     {
         return  Mat<4, 4, Type, St>
@@ -715,12 +740,15 @@ namespace omath
 
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR,
              NDCDepthRange DepthRange = NDCDepthRange::NEGATIVE_ONE_TO_ONE>
-    [[nodiscard("You must use perspective matrix")]]
+    [[nodiscard("You must use perspective matrix")]] OMATH_CONSTEXPR
     Mat<4, 4, Type, St> mat_perspective_left_handed_vertical_fov(const Type field_of_view, const Type aspect_ratio,
                                                     const Type near, const Type far) noexcept
     {
+#ifdef OMATH_USE_GCEM
+        const auto fov_half_tan = gcem::tan(angles::degrees_to_radians(field_of_view) / Type{2});
+#else
         const auto fov_half_tan = std::tan(angles::degrees_to_radians(field_of_view) / Type{2});
-
+#endif
         if constexpr (DepthRange == NDCDepthRange::ZERO_TO_ONE)
             return {{Type{1} / (aspect_ratio * fov_half_tan), Type{0},                Type{0},             Type{0}},
                     {Type{0},                                 Type{1} / fov_half_tan, Type{0},             Type{0}},
@@ -737,11 +765,15 @@ namespace omath
 
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR,
              NDCDepthRange DepthRange = NDCDepthRange::NEGATIVE_ONE_TO_ONE>
-    [[nodiscard("You must use perspective matrix")]]
+    [[nodiscard("You must use perspective matrix")]] OMATH_CONSTEXPR
     Mat<4, 4, Type, St> mat_perspective_right_handed_vertical_fov(const Type field_of_view, const Type aspect_ratio,
                                                      const Type near, const Type far) noexcept
     {
+#ifdef OMATH_USE_GCEM
+        const auto fov_half_tan = gcem::tan(angles::degrees_to_radians(field_of_view) / Type{2});
+#else
         const auto fov_half_tan = std::tan(angles::degrees_to_radians(field_of_view) / Type{2});
+#endif
 
         if constexpr (DepthRange == NDCDepthRange::ZERO_TO_ONE)
             return {{Type{1} / (aspect_ratio * fov_half_tan), Type{0},                Type{0},             Type{0}},
@@ -762,12 +794,16 @@ namespace omath
     // X and Y scales derived as: X = 1 / tan(hfov/2), Y = aspect / tan(hfov/2).
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR,
              NDCDepthRange DepthRange = NDCDepthRange::NEGATIVE_ONE_TO_ONE>
-    [[nodiscard("You must use perspective matrix")]]
+    [[nodiscard("You must use perspective matrix")]] OMATH_CONSTEXPR
     Mat<4, 4, Type, St> mat_perspective_left_handed_horizontal_fov(const Type horizontal_fov,
                                                                    const Type aspect_ratio, const Type near,
                                                                    const Type far) noexcept
     {
+#ifdef OMATH_USE_GCEM
+        const auto inv_tan_half_hfov = Type{1} / gcem::tan(angles::degrees_to_radians(horizontal_fov) / Type{2});
+#else
         const auto inv_tan_half_hfov = Type{1} / std::tan(angles::degrees_to_radians(horizontal_fov) / Type{2});
+#endif
         const auto x_axis = inv_tan_half_hfov;
         const auto y_axis = inv_tan_half_hfov * aspect_ratio;
 
@@ -787,12 +823,17 @@ namespace omath
 
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR,
              NDCDepthRange DepthRange = NDCDepthRange::NEGATIVE_ONE_TO_ONE>
-    [[nodiscard("You must use perspective matrix")]]
+    [[nodiscard("You must use perspective matrix")]] OMATH_CONSTEXPR
     Mat<4, 4, Type, St> mat_perspective_right_handed_horizontal_fov(const Type horizontal_fov,
                                                                     const Type aspect_ratio, const Type near,
                                                                     const Type far) noexcept
     {
+#ifdef OMATH_USE_GCEM
+        const auto inv_tan_half_hfov = Type{1} / gcem::tan(angles::degrees_to_radians(horizontal_fov) / Type{2});
+#else
         const auto inv_tan_half_hfov = Type{1} / std::tan(angles::degrees_to_radians(horizontal_fov) / Type{2});
+#endif
+
         const auto x_axis = inv_tan_half_hfov;
         const auto y_axis = inv_tan_half_hfov * aspect_ratio;
 
@@ -811,7 +852,7 @@ namespace omath
     }
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR,
              NDCDepthRange DepthRange = NDCDepthRange::NEGATIVE_ONE_TO_ONE>
-    [[nodiscard("You must use ortho matrix")]]
+    [[nodiscard("You must use ortho matrix")]] OMATH_CONSTEXPR
     Mat<4, 4, Type, St> mat_ortho_left_handed(const Type left, const Type right, const Type bottom, const Type top,
                                               const Type near, const Type far) noexcept
     {
@@ -836,7 +877,7 @@ namespace omath
     }
     template<class Type = float, MatStoreType St = MatStoreType::ROW_MAJOR,
              NDCDepthRange DepthRange = NDCDepthRange::NEGATIVE_ONE_TO_ONE>
-    [[nodiscard("You must use ortho matrix")]]
+    [[nodiscard("You must use ortho matrix")]] OMATH_CONSTEXPR
     Mat<4, 4, Type, St> mat_ortho_right_handed(const Type left, const Type right, const Type bottom, const Type top,
                                                const Type near, const Type far) noexcept
     {
@@ -860,7 +901,7 @@ namespace omath
             std::unreachable();
     }
     template<class T = float, MatStoreType St = MatStoreType::COLUMN_MAJOR>
-   Mat<4, 4, T, St> mat_look_at_left_handed(const Vector3<T>& eye, const Vector3<T>& center, const Vector3<T>& up)
+    OMATH_CONSTEXPR Mat<4, 4, T, St> mat_look_at_left_handed(const Vector3<T>& eye, const Vector3<T>& center, const Vector3<T>& up)
     {
         const Vector3<T> f = (center - eye).normalized();
         const Vector3<T> s = f.cross(up).normalized();
@@ -869,7 +910,7 @@ namespace omath
     }
 
     template<class T = float, MatStoreType St = MatStoreType::COLUMN_MAJOR>
-    Mat<4, 4, T, St>mat_look_at_right_handed(const Vector3<T>& eye, const Vector3<T>& center, const Vector3<T>& up)
+    OMATH_CONSTEXPR Mat<4, 4, T, St> mat_look_at_right_handed(const Vector3<T>& eye, const Vector3<T>& center, const Vector3<T>& up)
     {
         const Vector3<T> f = (center - eye).normalized();
         const Vector3<T> s = f.cross(up).normalized();

include/omath/linear_algebra/triangle.hpp

@@ -2,8 +2,8 @@
 // Created by Orange on 11/13/2024.
 //
 #pragma once
+#include "omath/internal/optional_constexpr_math.hpp"
 #include "vector3.hpp"
-
 namespace omath
 {
     /*
@@ -40,13 +40,13 @@ namespace omath
         }
 
         [[nodiscard]]
-        Vector::ContainedType side_a_length() const
+        OMATH_CONSTEXPR Vector::ContainedType side_a_length() const
         {
             return m_vertex1.distance_to(m_vertex2);
         }
 
         [[nodiscard]]
-        Vector::ContainedType side_b_length() const
+        OMATH_CONSTEXPR Vector::ContainedType side_b_length() const
         {
             return m_vertex3.distance_to(m_vertex2);
         }
@@ -69,7 +69,11 @@ namespace omath
             const auto side_b = side_b_length();
             const auto hypot_value = hypot();
 
+#ifdef OMATH_USE_GCEM
+            return gcem::abs(side_a * side_a + side_b * side_b - hypot_value * hypot_value) <= 0.0001f;
+#else
             return std::abs(side_a * side_a + side_b * side_b - hypot_value * hypot_value) <= 0.0001f;
+#endif
         }
         [[nodiscard]]
         constexpr Vector side_b_vector() const

include/omath/linear_algebra/vector2.hpp

@@ -3,6 +3,7 @@
 //
 
 #pragma once
+#include "omath/internal/optional_constexpr_math.hpp"
 #include <cmath>
 #include <format>
 #include <tuple>
@@ -116,9 +117,13 @@ namespace omath
 
         // Basic vector operations
         [[nodiscard("You must use distance")]]
-        Type distance_to(const Vector2& other) const noexcept
+        OMATH_CONSTEXPR Type distance_to(const Vector2& other) const noexcept
         {
+#ifdef OMATH_USE_GCEM
+            return gcem::sqrt(distance_to_sqr(other));
+#else
             return std::sqrt(distance_to_sqr(other));
+#endif
         }
 
         [[nodiscard("You must use squared distance")]]
@@ -136,7 +141,11 @@ namespace omath
 #ifndef _MSC_VER
         [[nodiscard("You must use length")]] constexpr Type length() const noexcept
         {
+#ifdef OMATH_USE_GCEM
+            return gcem::hypot(this->x, this->y);
+#else
             return std::hypot(this->x, this->y);
+#endif
         }
 
         [[nodiscard("You must use normalized vector")]] constexpr Vector2 normalized() const noexcept
@@ -146,13 +155,17 @@ namespace omath
         }
 #else
         [[nodiscard("You must use length")]]
-        Type length() const noexcept
+        OMATH_CONSTEXPR Type length() const noexcept
         {
+#ifdef OMATH_USE_GCEM
+            return gcem::hypot(x, y);
+#else
             return std::hypot(x, y);
+#endif
         }
 
         [[nodiscard("You must use normalized vector")]]
-        Vector2 normalized() const noexcept
+        OMATH_CONSTEXPR Vector2 normalized() const noexcept
         {
             const Type len = length();
             return len > static_cast<Type>(0) ? *this / len : *this;
@@ -216,24 +229,24 @@ namespace omath
         }
 
         [[nodiscard("You must use comparison result")]]
-        bool operator<(const Vector2& other) const noexcept
+        OMATH_CONSTEXPR bool operator<(const Vector2& other) const noexcept
         {
             return length() < other.length();
         }
         [[nodiscard("You must use comparison result")]]
-        bool operator>(const Vector2& other) const noexcept
+        OMATH_CONSTEXPR bool operator>(const Vector2& other) const noexcept
         {
             return length() > other.length();
         }
 
         [[nodiscard("You must use comparison result")]]
-        bool operator<=(const Vector2& other) const noexcept
+        OMATH_CONSTEXPR bool operator<=(const Vector2& other) const noexcept
         {
             return length() <= other.length();
         }
 
         [[nodiscard("You must use comparison result")]]
-        bool operator>=(const Vector2& other) const noexcept
+        OMATH_CONSTEXPR bool operator>=(const Vector2& other) const noexcept
         {
             return length() >= other.length();
         }

include/omath/linear_algebra/vector3.hpp

@@ -140,20 +140,24 @@ namespace omath
         }
 
 #ifndef _MSC_VER
-        [[nodiscard("You must use length")]] constexpr Type length() const
+        [[nodiscard("You must use length")]] constexpr Type length() const noexcept
         {
+#ifdef OMATH_USE_GCEM
+            return gcem::sqrt(this->x * this->x + this->y * this->y + z * z);
+#else
             return std::hypot(this->x, this->y, z);
+#endif
         }
 
-        [[nodiscard("You must use 2D length")]] constexpr Type length_2d() const
+        [[nodiscard("You must use 2D length")]] constexpr Type length_2d() const noexcept
         {
             return Vector2<Type>::length();
         }
-        [[nodiscard("You must use distance")]] Type distance_to(const Vector3& other) const
+        [[nodiscard("You must use distance")]] OMATH_CONSTEXPR Type distance_to(const Vector3& other) const noexcept
         {
             return (*this - other).length();
         }
-        [[nodiscard("You must use normalized vector")]] constexpr Vector3 normalized() const
+        [[nodiscard("You must use normalized vector")]] constexpr Vector3 normalized() const noexcept
         {
             const Type length_value = this->length();
 
@@ -161,13 +165,17 @@ namespace omath
         }
 #else
         [[nodiscard("You must use length")]]
-        Type length() const noexcept
+        OMATH_CONSTEXPR Type length() const noexcept
         {
+#ifdef OMATH_USE_GCEM
+            return gcem::sqrt(this->x * this->x + this->y * this->y + this->z * this->z);
+#else
             return std::hypot(this->x, this->y, z);
+#endif
         }
 
         [[nodiscard("You must use normalized vector")]]
-        Vector3 normalized() const noexcept
+        OMATH_CONSTEXPR Vector3 normalized() const noexcept
         {
             const Type len = this->length();
 
@@ -175,13 +183,13 @@ namespace omath
         }
 
         [[nodiscard("You must use 2D length")]]
-        Type length_2d() const noexcept
+        OMATH_CONSTEXPR Type length_2d() const noexcept
         {
             return Vector2<Type>::length();
         }
 
         [[nodiscard("You must use distance")]]
-        Type distance_to(const Vector3& v_other) const noexcept
+        OMATH_CONSTEXPR Type distance_to(const Vector3& v_other) const noexcept
         {
             return (*this - v_other).length();
         }
@@ -249,24 +257,28 @@ namespace omath
         }
 
         [[nodiscard("You must use direction check result")]]
-        bool point_to_same_direction(const Vector3& other) const
+        OMATH_CONSTEXPR bool point_to_same_direction(const Vector3& other) const
         {
             return dot(other) > static_cast<Type>(0);
         }
         [[nodiscard("You must use angle between vectors")]]
-        std::expected<Angle<float, 0.f, 180.f, AngleFlags::Clamped>, Vector3Error>
+        OMATH_CONSTEXPR std::expected<Angle<float, 0.f, 180.f, AngleFlags::Clamped>, Vector3Error>
         angle_between(const Vector3& other) const noexcept
         {
             const auto bottom = length() * other.length();
 
             if (bottom == static_cast<Type>(0))
                 return std::unexpected(Vector3Error::IMPOSSIBLE_BETWEEN_ANGLE);
-
+#ifdef OMATH_USE_GCEM
+            return Angle<float, 0.f, 180.f, AngleFlags::Clamped>::from_radians(gcem::acos(dot(other) / bottom));
+#else
             return Angle<float, 0.f, 180.f, AngleFlags::Clamped>::from_radians(std::acos(dot(other) / bottom));
+#endif
         }
 
         [[nodiscard("You must use perpendicularity check result")]]
-        bool is_perpendicular(const Vector3& other, Type epsilon = static_cast<Type>(0.0001)) const noexcept
+        OMATH_CONSTEXPR bool is_perpendicular(const Vector3& other,
+                                              Type epsilon = static_cast<Type>(0.0001)) const noexcept
         {
             if (const auto angle = angle_between(other))
                 return std::abs(angle->as_degrees() - static_cast<Type>(90)) <= epsilon;
@@ -287,25 +299,25 @@ namespace omath
         }
 
         [[nodiscard("You must use comparison result")]]
-        bool operator<(const Vector3& other) const noexcept
+        OMATH_CONSTEXPR bool operator<(const Vector3& other) const noexcept
         {
             return length() < other.length();
         }
 
         [[nodiscard("You must use comparison result")]]
-        bool operator>(const Vector3& other) const noexcept
+        OMATH_CONSTEXPR bool operator>(const Vector3& other) const noexcept
         {
             return length() > other.length();
         }
 
         [[nodiscard("You must use comparison result")]]
-        bool operator<=(const Vector3& other) const noexcept
+        OMATH_CONSTEXPR bool operator<=(const Vector3& other) const noexcept
         {
             return length() <= other.length();
         }
 
         [[nodiscard("You must use comparison result")]]
-        bool operator>=(const Vector3& other) const noexcept
+        OMATH_CONSTEXPR bool operator>=(const Vector3& other) const noexcept
         {
             return length() >= other.length();
         }
@@ -320,6 +332,7 @@ namespace omath
 
 template<> struct std::hash<omath::Vector3<float>>
 {
+    // NOTE: Cannot be constexpr because of MSVC
     [[nodiscard("You must use hash value")]]
     std::size_t operator()(const omath::Vector3<float>& vec) const noexcept
     {

include/omath/trigonometry/angle.hpp

@@ -3,6 +3,7 @@
 //
 
 #pragma once
+#include "omath/internal/optional_constexpr_math.hpp"
 #include "omath/trigonometry/angles.hpp"
 #include <algorithm>
 #include <format>
@@ -70,31 +71,51 @@ namespace omath
         }
 
         [[nodiscard]]
-        Type sin() const noexcept
+        OMATH_CONSTEXPR Type sin() const noexcept
         {
+#ifdef OMATH_USE_GCEM
+            return gcem::sin(as_radians());
+#else
             return std::sin(as_radians());
+
+#endif
         }
 
         [[nodiscard]]
-        Type cos() const noexcept
+        OMATH_CONSTEXPR Type cos() const noexcept
         {
+#ifdef OMATH_USE_GCEM
+            return gcem::cos(as_radians());
+#else
             return std::cos(as_radians());
+
+#endif
         }
 
         [[nodiscard]]
-        Type tan() const noexcept
+        OMATH_CONSTEXPR Type tan() const noexcept
         {
+#ifdef OMATH_USE_GCEM
+            return gcem::tan(as_radians());
+#else
             return std::tan(as_radians());
+
+#endif
         }
 
         [[nodiscard]]
-        Type atan() const noexcept
+        OMATH_CONSTEXPR Type atan() const noexcept
         {
+#ifdef OMATH_USE_GCEM
+            return gcem::atan(as_radians());
+#else
             return std::atan(as_radians());
+
+#endif
         }
 
         [[nodiscard]]
-        Type cot() const noexcept
+        OMATH_CONSTEXPR Type cot() const noexcept
         {
             return cos() / sin();
         }

include/omath/trigonometry/angles.hpp

@@ -3,6 +3,7 @@
 //
 
 #pragma once
+#include "omath/internal/optional_constexpr_math.hpp"
 #include <cmath>
 #include <numbers>
 
@@ -47,14 +48,18 @@ namespace omath::angles
 
     template<class Type>
     requires std::is_arithmetic_v<Type>
-    [[nodiscard]] Type wrap_angle(const Type& angle, const Type& min, const Type& max) noexcept
+    [[nodiscard]] OMATH_CONSTEXPR Type wrap_angle(const Type& angle, const Type& min, const Type& max) noexcept
     {
         if (angle <= max && angle >= min)
             return angle;
 
         const Type range = max - min;
 
+#ifdef OMATH_USE_GCEM
+        Type wrapped_angle = gcem::fmod(angle - min, range);
+#else
         Type wrapped_angle = std::fmod(angle - min, range);
+#endif
 
         if (wrapped_angle < 0)
             wrapped_angle += range;

include/omath/utility/elf_pattern_scan.hpp

@@ -2,12 +2,13 @@
 // Created by Vladislav on 30.12.2025.
 //
 #pragma once
+#include "pattern_scan.hpp"
+#include "section_scan_result.hpp"
 #include <cstdint>
 #include <filesystem>
 #include <optional>
 #include <span>
 #include <string_view>
-#include "section_scan_result.hpp"
 namespace omath
 {
     class ElfPatternScanner final
@@ -18,14 +19,74 @@ namespace omath
         scan_for_pattern_in_loaded_module(const void* module_base_address, const std::string_view& pattern,
                                           const std::string_view& target_section_name = ".text");
 
+        template<PatternScanner::ConstevalPattern Pattern>
+        [[nodiscard]]
+        static std::optional<std::uintptr_t>
+        scan_for_pattern_in_loaded_module(const void* module_base_address,
+                                          const std::string_view& target_section_name = ".text")
+        {
+            return scan_for_pattern_in_loaded_module(module_base_address, target_section_name,
+                                                     &ElfPatternScanner::scan_section_for_pattern<Pattern>);
+        }
+
         [[nodiscard]]
         static std::optional<SectionScanResult>
         scan_for_pattern_in_file(const std::filesystem::path& path_to_file, const std::string_view& pattern,
                                  const std::string_view& target_section_name = ".text");
 
+        template<PatternScanner::ConstevalPattern Pattern>
+        [[nodiscard]]
+        static std::optional<SectionScanResult>
+        scan_for_pattern_in_file(const std::filesystem::path& path_to_file,
+                                 const std::string_view& target_section_name = ".text")
+        {
+            return scan_for_pattern_in_file(path_to_file, target_section_name,
+                                            &ElfPatternScanner::scan_section_for_pattern<Pattern>);
+        }
+
         [[nodiscard]]
         static std::optional<SectionScanResult>
         scan_for_pattern_in_memory_file(std::span<const std::byte> file_data, const std::string_view& pattern,
                                         const std::string_view& target_section_name = ".text");
+
+        template<PatternScanner::ConstevalPattern Pattern>
+        [[nodiscard]]
+        static std::optional<SectionScanResult>
+        scan_for_pattern_in_memory_file(std::span<const std::byte> file_data,
+                                        const std::string_view& target_section_name = ".text")
+        {
+            return scan_for_pattern_in_memory_file(file_data, target_section_name,
+                                                   &ElfPatternScanner::scan_section_for_pattern<Pattern>);
+        }
+
+    private:
+        using SectionScanFunction = std::optional<std::ptrdiff_t> (*)(std::span<const std::byte>);
+
+        template<PatternScanner::ConstevalPattern Pattern>
+        [[nodiscard]]
+        static std::optional<std::ptrdiff_t> scan_section_for_pattern(const std::span<const std::byte> section_data)
+        {
+            const auto result = PatternScanner::scan_for_pattern<Pattern>(section_data.begin(), section_data.end());
+
+            if (result == section_data.end())
+                return std::nullopt;
+
+            return result - section_data.begin();
+        }
+
+        [[nodiscard]]
+        static std::optional<std::uintptr_t>
+        scan_for_pattern_in_loaded_module(const void* module_base_address, const std::string_view& target_section_name,
+                                          SectionScanFunction scan_pattern);
+
+        [[nodiscard]]
+        static std::optional<SectionScanResult> scan_for_pattern_in_file(const std::filesystem::path& path_to_file,
+                                                                         const std::string_view& target_section_name,
+                                                                         SectionScanFunction scan_pattern);
+
+        [[nodiscard]]
+        static std::optional<SectionScanResult>
+        scan_for_pattern_in_memory_file(std::span<const std::byte> file_data,
+                                        const std::string_view& target_section_name, SectionScanFunction scan_pattern);
     };
 } // namespace omath

include/omath/utility/macho_pattern_scan.hpp

@@ -2,12 +2,13 @@
 // Created by Copilot on 04.02.2026.
 //
 #pragma once
+#include "pattern_scan.hpp"
+#include "section_scan_result.hpp"
 #include <cstdint>
 #include <filesystem>
 #include <optional>
 #include <span>
 #include <string_view>
-#include "section_scan_result.hpp"
 namespace omath
 {
     class MachOPatternScanner final
@@ -18,14 +19,74 @@ namespace omath
         scan_for_pattern_in_loaded_module(const void* module_base_address, const std::string_view& pattern,
                                           const std::string_view& target_section_name = "__text");
 
+        template<PatternScanner::ConstevalPattern Pattern>
+        [[nodiscard]]
+        static std::optional<std::uintptr_t>
+        scan_for_pattern_in_loaded_module(const void* module_base_address,
+                                          const std::string_view& target_section_name = "__text")
+        {
+            return scan_for_pattern_in_loaded_module(module_base_address, target_section_name,
+                                                     &MachOPatternScanner::scan_section_for_pattern<Pattern>);
+        }
+
         [[nodiscard]]
         static std::optional<SectionScanResult>
         scan_for_pattern_in_file(const std::filesystem::path& path_to_file, const std::string_view& pattern,
                                  const std::string_view& target_section_name = "__text");
 
+        template<PatternScanner::ConstevalPattern Pattern>
+        [[nodiscard]]
+        static std::optional<SectionScanResult>
+        scan_for_pattern_in_file(const std::filesystem::path& path_to_file,
+                                 const std::string_view& target_section_name = "__text")
+        {
+            return scan_for_pattern_in_file(path_to_file, target_section_name,
+                                            &MachOPatternScanner::scan_section_for_pattern<Pattern>);
+        }
+
         [[nodiscard]]
         static std::optional<SectionScanResult>
         scan_for_pattern_in_memory_file(std::span<const std::byte> file_data, const std::string_view& pattern,
                                         const std::string_view& target_section_name = "__text");
+
+        template<PatternScanner::ConstevalPattern Pattern>
+        [[nodiscard]]
+        static std::optional<SectionScanResult>
+        scan_for_pattern_in_memory_file(std::span<const std::byte> file_data,
+                                        const std::string_view& target_section_name = "__text")
+        {
+            return scan_for_pattern_in_memory_file(file_data, target_section_name,
+                                                   &MachOPatternScanner::scan_section_for_pattern<Pattern>);
+        }
+
+    private:
+        using SectionScanFunction = std::optional<std::ptrdiff_t> (*)(std::span<const std::byte>);
+
+        template<PatternScanner::ConstevalPattern Pattern>
+        [[nodiscard]]
+        static std::optional<std::ptrdiff_t> scan_section_for_pattern(const std::span<const std::byte> section_data)
+        {
+            const auto result = PatternScanner::scan_for_pattern<Pattern>(section_data.begin(), section_data.end());
+
+            if (result == section_data.end())
+                return std::nullopt;
+
+            return result - section_data.begin();
+        }
+
+        [[nodiscard]]
+        static std::optional<std::uintptr_t>
+        scan_for_pattern_in_loaded_module(const void* module_base_address, const std::string_view& target_section_name,
+                                          SectionScanFunction scan_pattern);
+
+        [[nodiscard]]
+        static std::optional<SectionScanResult> scan_for_pattern_in_file(const std::filesystem::path& path_to_file,
+                                                                         const std::string_view& target_section_name,
+                                                                         SectionScanFunction scan_pattern);
+
+        [[nodiscard]]
+        static std::optional<SectionScanResult>
+        scan_for_pattern_in_memory_file(std::span<const std::byte> file_data,
+                                        const std::string_view& target_section_name, SectionScanFunction scan_pattern);
     };
 } // namespace omath

include/omath/utility/pattern_scan.hpp

@@ -3,9 +3,12 @@
 //
 
 #pragma once
+#include <algorithm>
+#include <array>
 #include <expected>
 #include <optional>
 #include <span>
+#include <stdexcept>
 #include <string_view>
 #include <vector>
 
@@ -15,6 +18,8 @@ class unit_test_pattern_scan_corner_case_1_Test;
 class unit_test_pattern_scan_corner_case_2_Test;
 class unit_test_pattern_scan_corner_case_3_Test;
 class unit_test_pattern_scan_corner_case_4_Test;
+class unit_test_pattern_scan_consteval_read_test_Test;
+class unit_test_pattern_scan_consteval_spacing_and_case_Test;
 // ReSharper restore CppInconsistentNaming
 namespace omath
 {
@@ -29,8 +34,22 @@ namespace omath
         friend unit_test_pattern_scan_corner_case_2_Test;
         friend unit_test_pattern_scan_corner_case_3_Test;
         friend unit_test_pattern_scan_corner_case_4_Test;
+        friend unit_test_pattern_scan_consteval_read_test_Test;
+        friend unit_test_pattern_scan_consteval_spacing_and_case_Test;
 
     public:
+        template<std::size_t N>
+        struct ConstevalPattern final
+        {
+            char value[N]{};
+
+            // ReSharper disable once CppNonExplicitConvertingConstructor
+            constexpr ConstevalPattern(const char (&text)[N]) // NOLINT(*-explicit-constructor)
+            {
+                std::ranges::copy(text, value);
+            }
+        };
+
         [[nodiscard]]
         static std::span<std::byte>::iterator scan_for_pattern(const std::span<std::byte>& range,
                                                                const std::string_view& pattern);
@@ -49,9 +68,26 @@ namespace omath
             if (!parsed_pattern) [[unlikely]]
                 return end;
 
+            return scan_for_parsed_pattern(begin, end, parsed_pattern.value());
+        }
+        template<ConstevalPattern Pattern, class IteratorType>
+        requires std::input_or_output_iterator<std::remove_cvref_t<IteratorType>>
+        static IteratorType scan_for_pattern(const IteratorType& begin, const IteratorType& end)
+        {
+            constexpr auto parsed_pattern = parse_pattern<Pattern>();
+
+            return scan_for_parsed_pattern(begin, end, parsed_pattern);
+        }
+
+    private:
+        template<class IteratorType, class ParsedPattern>
+        requires std::input_or_output_iterator<std::remove_cvref_t<IteratorType>>
+        static IteratorType scan_for_parsed_pattern(const IteratorType& begin, const IteratorType& end,
+                                                    const ParsedPattern& parsed_pattern)
+        {
             const auto whole_range_size = static_cast<std::ptrdiff_t>(std::distance(begin, end));
 
-            const auto pattern_size = static_cast<std::ptrdiff_t>(parsed_pattern->size());
+            const auto pattern_size = static_cast<std::ptrdiff_t>(parsed_pattern.size());
             const std::ptrdiff_t scan_size = whole_range_size - pattern_size;
 
             if (scan_size < 0)
@@ -61,9 +97,9 @@ namespace omath
             {
                 bool found = true;
 
-                for (std::ptrdiff_t j = 0; j < static_cast<std::ptrdiff_t>(parsed_pattern->size()); j++)
+                for (std::ptrdiff_t j = 0; j < static_cast<std::ptrdiff_t>(parsed_pattern.size()); j++)
                 {
-                    found = parsed_pattern->at(j) == std::nullopt || parsed_pattern->at(j) == *(begin + i + j);
+                    found = parsed_pattern.at(j) == std::nullopt || parsed_pattern.at(j) == *(begin + i + j);
 
                     if (!found)
                         break;
@@ -73,10 +109,97 @@ namespace omath
             }
             return end;
         }
-
-    private:
         [[nodiscard]]
         static std::expected<std::vector<std::optional<std::byte>>, PatternScanError>
         parse_pattern(const std::string_view& pattern_string);
+
+        [[nodiscard]]
+        constexpr static bool is_space(const char c)
+        {
+            return c == ' ' || c == '\t' || c == '\n' || c == '\r';
+        }
+
+        [[nodiscard]]
+        constexpr static int hex_value(const char c)
+        {
+            if (c >= '0' && c <= '9')
+                return c - '0';
+            if (c >= 'A' && c <= 'F')
+                return c - 'A' + 10;
+            if (c >= 'a' && c <= 'f')
+                return c - 'a' + 10;
+            return -1;
+        }
+        template<ConstevalPattern Pattern>
+        [[nodiscard]]
+        static consteval std::size_t signature_size()
+        {
+            std::size_t count = 0;
+            bool in_token = false;
+
+            for (std::size_t i = 0; i + 1 < sizeof(Pattern.value); ++i)
+            {
+                if (is_space(Pattern.value[i]))
+                {
+                    in_token = false;
+                }
+                else if (!in_token)
+                {
+                    ++count;
+                    in_token = true;
+                }
+            }
+
+            return count;
+        }
+
+        template<ConstevalPattern Pattern>
+        static consteval std::array<std::optional<std::byte>, signature_size<Pattern>()> parse_pattern()
+        {
+            std::array<std::optional<std::byte>, signature_size<Pattern>()> result{};
+            std::size_t out = 0;
+            std::size_t i = 0;
+
+            while (i + 1 < sizeof(Pattern.value))
+            {
+                while (i + 1 < sizeof(Pattern.value) && is_space(Pattern.value[i]))
+                    ++i;
+
+                const std::size_t token_start = i;
+
+                while (i + 1 < sizeof(Pattern.value) && !is_space(Pattern.value[i]))
+                    ++i;
+
+                const std::size_t token_size = i - token_start;
+
+                if (token_size == 0)
+                    continue;
+
+                // ReSharper disable once CppTooWideScope
+                const bool is_wildcard = (token_size == 1 || token_size == 2) && Pattern.value[token_start] == '?';
+
+                if (is_wildcard)
+                {
+                    if (token_size == 2 && Pattern.value[token_start + 1] != '?')
+                        throw std::logic_error("invalid wildcard token");
+
+                    result[out++] = std::nullopt;
+                    continue;
+                }
+
+                if (token_size != 2)
+                    throw std::logic_error("invalid byte token");
+
+                const int high = hex_value(Pattern.value[token_start]);
+                const int low = hex_value(Pattern.value[token_start + 1]);
+
+                if (high < 0 || low < 0)
+                    throw std::logic_error("invalid hex byte");
+
+                result[out++] = static_cast<std::byte>((high << 4) | low);
+            }
+
+            return result;
+        }
     };
 } // namespace omath

include/omath/utility/pe_pattern_scan.hpp

@@ -3,12 +3,13 @@
 //
 
 #pragma once
+#include "pattern_scan.hpp"
+#include "section_scan_result.hpp"
 #include <cstdint>
 #include <filesystem>
 #include <optional>
 #include <span>
 #include <string_view>
-#include "section_scan_result.hpp"
 namespace omath
 {
 
@@ -20,14 +21,74 @@ namespace omath
         scan_for_pattern_in_loaded_module(const void* module_base_address, const std::string_view& pattern,
                                           const std::string_view& target_section_name = ".text");
 
+        template<PatternScanner::ConstevalPattern Pattern>
+        [[nodiscard]]
+        static std::optional<std::uintptr_t>
+        scan_for_pattern_in_loaded_module(const void* module_base_address,
+                                          const std::string_view& target_section_name = ".text")
+        {
+            return scan_for_pattern_in_loaded_module(module_base_address, target_section_name,
+                                                     &PePatternScanner::scan_section_for_pattern<Pattern>);
+        }
+
         [[nodiscard]]
         static std::optional<SectionScanResult>
         scan_for_pattern_in_file(const std::filesystem::path& path_to_file, const std::string_view& pattern,
                                  const std::string_view& target_section_name = ".text");
 
+        template<PatternScanner::ConstevalPattern Pattern>
+        [[nodiscard]]
+        static std::optional<SectionScanResult>
+        scan_for_pattern_in_file(const std::filesystem::path& path_to_file,
+                                 const std::string_view& target_section_name = ".text")
+        {
+            return scan_for_pattern_in_file(path_to_file, target_section_name,
+                                            &PePatternScanner::scan_section_for_pattern<Pattern>);
+        }
+
         [[nodiscard]]
         static std::optional<SectionScanResult>
         scan_for_pattern_in_memory_file(std::span<const std::byte> file_data, const std::string_view& pattern,
                                         const std::string_view& target_section_name = ".text");
+
+        template<PatternScanner::ConstevalPattern Pattern>
+        [[nodiscard]]
+        static std::optional<SectionScanResult>
+        scan_for_pattern_in_memory_file(std::span<const std::byte> file_data,
+                                        const std::string_view& target_section_name = ".text")
+        {
+            return scan_for_pattern_in_memory_file(file_data, target_section_name,
+                                                   &PePatternScanner::scan_section_for_pattern<Pattern>);
+        }
+
+    private:
+        using SectionScanFunction = std::optional<std::ptrdiff_t> (*)(std::span<const std::byte>);
+
+        template<PatternScanner::ConstevalPattern Pattern>
+        [[nodiscard]]
+        static std::optional<std::ptrdiff_t> scan_section_for_pattern(const std::span<const std::byte> section_data)
+        {
+            const auto result = PatternScanner::scan_for_pattern<Pattern>(section_data.begin(), section_data.end());
+
+            if (result == section_data.end())
+                return std::nullopt;
+
+            return result - section_data.begin();
+        }
+
+        [[nodiscard]]
+        static std::optional<std::uintptr_t>
+        scan_for_pattern_in_loaded_module(const void* module_base_address, const std::string_view& target_section_name,
+                                          SectionScanFunction scan_pattern);
+
+        [[nodiscard]]
+        static std::optional<SectionScanResult> scan_for_pattern_in_file(const std::filesystem::path& path_to_file,
+                                                                         const std::string_view& target_section_name,
+                                                                         SectionScanFunction scan_pattern);
+
+        [[nodiscard]]
+        static std::optional<SectionScanResult>
+        scan_for_pattern_in_memory_file(std::span<const std::byte> file_data,
+                                        const std::string_view& target_section_name, SectionScanFunction scan_pattern);
     };
 } // namespace omath

mkdocs.yml

@@ -1,27 +1,6 @@
 site_name: OMATH Docs
 theme:
-  name: material
+  name: darkly
-  font:
-    text: Roboto
-    code: Roboto Mono
-  palette:
-    scheme: slate
-    primary: black
-    accent: orange
-  features:
-    - navigation.instant
-    - navigation.tracking
-    - navigation.sections
-    - navigation.top
-    - search.highlight
-    - content.code.copy
-markdown_extensions:
-  - pymdownx.highlight:
-      anchor_linenums: true
-      line_spans: __span
-      pygments_lang_class: true
-  - pymdownx.inlinehilite
-  - pymdownx.superfences
 extra_css:
   - styles/center.css
   - styles/custom-header.css

source/engines/cry_engine/formulas.cpp

@@ -1,70 +0,0 @@
-//
-// Created by Vlad on 3/22/2025.
-//
-#include "omath/engines/cry_engine/formulas.hpp"
-
-namespace omath::cry_engine
-{
-    Vector3<float> forward_vector(const ViewAngles& angles) noexcept
-    {
-        const auto vec = rotation_matrix(angles) * mat_column_from_vector(k_abs_forward);
-
-        return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
-    }
-    Vector3<float> right_vector(const ViewAngles& angles) noexcept
-    {
-        const auto vec = rotation_matrix(angles) * mat_column_from_vector(k_abs_right);
-
-        return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
-    }
-    Vector3<float> up_vector(const ViewAngles& angles) noexcept
-    {
-        const auto vec = rotation_matrix(angles) * mat_column_from_vector(k_abs_up);
-
-        return {vec.at(0, 0), vec.at(1, 0), vec.at(2, 0)};
-    }
-    Mat4X4 calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept
-    {
-        return mat_camera_view<float, MatStoreType::ROW_MAJOR>(forward_vector(angles), right_vector(angles),
-                                                               up_vector(angles), cam_origin);
-    }
-    Mat4X4 rotation_matrix(const ViewAngles& angles) noexcept
-    {
-        return mat_rotation_axis_z<float, MatStoreType::ROW_MAJOR>(angles.yaw)
-               * mat_rotation_axis_y<float, MatStoreType::ROW_MAJOR>(angles.roll)
-               * mat_rotation_axis_x<float, MatStoreType::ROW_MAJOR>(angles.pitch);
-    }
-
-    Vector3<float> extract_origin(const Mat4X4& mat) noexcept
-    {
-        return mat_extract_origin(mat);
-    }
-
-    Vector3<float> extract_scale(const Mat4X4& mat) noexcept
-    {
-        return mat_extract_scale(mat);
-    }
-
-    ViewAngles extract_rotation_angles(const Mat4X4& mat) noexcept
-    {
-        const auto angles = mat_extract_rotation_zyx(mat);
-        return {
-                PitchAngle::from_degrees(angles.x),
-                YawAngle::from_degrees(angles.z),
-                RollAngle::from_degrees(angles.y),
-        };
-    }
-
-    Mat4X4 calc_perspective_projection_matrix(const float field_of_view, const float aspect_ratio, const float near,
-                                              const float far, const NDCDepthRange ndc_depth_range) noexcept
-    {
-        if (ndc_depth_range == NDCDepthRange::ZERO_TO_ONE)
-            return mat_perspective_left_handed_vertical_fov<float, MatStoreType::ROW_MAJOR, NDCDepthRange::ZERO_TO_ONE>(
-                    field_of_view, aspect_ratio, near, far);
-
-        if (ndc_depth_range == NDCDepthRange::NEGATIVE_ONE_TO_ONE)
-            return mat_perspective_left_handed_vertical_fov<float, MatStoreType::ROW_MAJOR, NDCDepthRange::NEGATIVE_ONE_TO_ONE>(
-                    field_of_view, aspect_ratio, near, far);
-        std::unreachable();
-    }
-} // namespace omath::cry_engine

source/engines/cry_engine/traits/camera_trait.cpp

@@ -1,27 +0,0 @@
-//
-// Created by Vlad on 8/11/2025.
-//
-#include "omath/engines/cry_engine/traits/camera_trait.hpp"
-
-namespace omath::cry_engine
-{
-
-    ViewAngles CameraTrait::calc_look_at_angle(const Vector3<float>& cam_origin, const Vector3<float>& look_at) noexcept
-    {
-        const auto direction = (look_at - cam_origin).normalized();
-
-        return {PitchAngle::from_radians(std::asin(direction.z)),
-                YawAngle::from_radians(-std::atan2(direction.x, direction.y)), RollAngle::from_radians(0.f)};
-    }
-    Mat4X4 CameraTrait::calc_view_matrix(const ViewAngles& angles, const Vector3<float>& cam_origin) noexcept
-    {
-        return cry_engine::calc_view_matrix(angles, cam_origin);
-    }
-    Mat4X4 CameraTrait::calc_projection_matrix(const projection::FieldOfView& fov,
-                                               const projection::ViewPort& view_port, const float near,
-                                               const float far, const NDCDepthRange ndc_depth_range) noexcept
-    {
-        return calc_perspective_projection_matrix(fov.as_degrees(), view_port.aspect_ratio(), near, far,
-                                                  ndc_depth_range);
-    }
-} // namespace omath::cry_engine

source/utility/elf_pattern_scan.cpp

@@ -304,8 +304,8 @@ namespace
                 elf_headers);
     }
 
-    template<class FileHeader, class SectionHeader>
+    template<class FileHeader, class SectionHeader, class ScanPattern>
-    std::optional<std::uintptr_t> scan_in_module_impl(const std::byte* base, const std::string_view pattern,
+    std::optional<std::uintptr_t> scan_in_module_impl(const std::byte* base, const ScanPattern scan_pattern,
                                                       const std::string_view target_section_name)
     {
         const auto* file_header = reinterpret_cast<const FileHeader*>(base);
@@ -336,13 +336,14 @@ namespace
                 continue;
 
             const auto* section_begin = base + static_cast<std::size_t>(section->sh_addr);
-            const auto* section_end = section_begin + static_cast<std::size_t>(section->sh_size);
+            const auto scan_range =
+                    std::span<const std::byte>{section_begin, static_cast<std::size_t>(section->sh_size)};
 
-            const auto scan_result = omath::PatternScanner::scan_for_pattern(section_begin, section_end, pattern);
+            const auto target_offset = scan_pattern(scan_range);
-            if (scan_result == section_end)
+            if (!target_offset.has_value())
                 return std::nullopt;
 
-            return reinterpret_cast<std::uintptr_t>(scan_result);
+            return reinterpret_cast<std::uintptr_t>(section_begin + target_offset.value());
         }
 
         return std::nullopt;
@@ -374,15 +375,58 @@ namespace omath
         if (!arch.has_value()) [[unlikely]]
             return std::nullopt;
 
+        const auto scan_pattern =
+                [&pattern](const std::span<const std::byte> section_data) -> std::optional<std::ptrdiff_t>
+        {
+            const auto scan_result =
+                    PatternScanner::scan_for_pattern(section_data.begin(), section_data.end(), pattern);
+
+            if (scan_result == section_data.end())
+                return std::nullopt;
+
+            return scan_result - section_data.begin();
+        };
+
         if (arch == FileArch::x64)
             return scan_in_module_impl<Elf64Ehdr, Elf64Shdr>(static_cast<const std::byte*>(module_base_address),
-                                                             pattern, target_section_name);
+                                                             scan_pattern, target_section_name);
         if (arch == FileArch::x32)
             return scan_in_module_impl<Elf32Ehdr, Elf32Shdr>(static_cast<const std::byte*>(module_base_address),
-                                                             pattern, target_section_name);
+                                                             scan_pattern, target_section_name);
 
         std::unreachable();
     }
+
+    std::optional<std::uintptr_t>
+    ElfPatternScanner::scan_for_pattern_in_loaded_module(const void* module_base_address,
+                                                         const std::string_view& target_section_name,
+                                                         const SectionScanFunction scan_pattern)
+    {
+        if (module_base_address == nullptr) [[unlikely]]
+            return std::nullopt;
+
+        const auto* base = static_cast<const std::byte*>(module_base_address);
+
+        constexpr std::string_view valid_elf_signature = "\x7F"
+                                                         "ELF";
+        if (std::string_view{reinterpret_cast<const char*>(base), valid_elf_signature.size()} != valid_elf_signature)
+            return std::nullopt;
+
+        const auto ei_class_value = static_cast<uint8_t>(base[ei_class]);
+        const auto arch = ei_class_value == elfclass64   ? FileArch::x64
+                          : ei_class_value == elfclass32 ? FileArch::x32
+                                                         : std::optional<FileArch>{};
+        if (!arch.has_value()) [[unlikely]]
+            return std::nullopt;
+
+        if (arch == FileArch::x64)
+            return scan_in_module_impl<Elf64Ehdr, Elf64Shdr>(base, scan_pattern, target_section_name);
+        if (arch == FileArch::x32)
+            return scan_in_module_impl<Elf32Ehdr, Elf32Shdr>(base, scan_pattern, target_section_name);
+
+        std::unreachable();
+    }
+
     std::optional<SectionScanResult>
     ElfPatternScanner::scan_for_pattern_in_file(const std::filesystem::path& path_to_file,
                                                 const std::string_view& pattern,
@@ -405,6 +449,26 @@ namespace omath
                                  .target_offset = offset};
     }
 
+    std::optional<SectionScanResult>
+    ElfPatternScanner::scan_for_pattern_in_file(const std::filesystem::path& path_to_file,
+                                                const std::string_view& target_section_name,
+                                                const SectionScanFunction scan_pattern)
+    {
+        const auto section = get_elf_section_by_name(path_to_file, target_section_name);
+
+        if (!section.has_value()) [[unlikely]]
+            return std::nullopt;
+
+        const auto target_offset = scan_pattern(std::span<const std::byte>{section->data.data(), section->data.size()});
+
+        if (!target_offset.has_value())
+            return std::nullopt;
+
+        return SectionScanResult{.virtual_base_addr = section->virtual_base_addr,
+                                 .raw_base_addr = section->raw_base_addr,
+                                 .target_offset = target_offset.value()};
+    }
+
     std::optional<SectionScanResult>
     ElfPatternScanner::scan_for_pattern_in_memory_file(const std::span<const std::byte> file_data,
                                                        const std::string_view& pattern,
@@ -427,4 +491,24 @@ namespace omath
                                  .raw_base_addr = section->raw_base_addr,
                                  .target_offset = offset};
     }
+
+    std::optional<SectionScanResult>
+    ElfPatternScanner::scan_for_pattern_in_memory_file(const std::span<const std::byte> file_data,
+                                                       const std::string_view& target_section_name,
+                                                       const SectionScanFunction scan_pattern)
+    {
+        const auto section = get_elf_section_by_name_from_memory(file_data, target_section_name);
+
+        if (!section.has_value()) [[unlikely]]
+            return std::nullopt;
+
+        const auto target_offset = scan_pattern(std::span<const std::byte>{section->data.data(), section->data.size()});
+
+        if (!target_offset.has_value())
+            return std::nullopt;
+
+        return SectionScanResult{.virtual_base_addr = section->virtual_base_addr,
+                                 .raw_base_addr = section->raw_base_addr,
+                                 .target_offset = target_offset.value()};
+    }
 } // namespace omath

source/utility/macho_pattern_scan.cpp

@@ -316,8 +316,8 @@ namespace
                     data, section_name);
 
         if (magic == mh_magic_32 || magic == mh_cigam_32)
-            return extract_section_from_memory_impl<MachHeader32, SegmentCommand32, Section32, lc_segment>(data,
+            return extract_section_from_memory_impl<MachHeader32, SegmentCommand32, Section32, lc_segment>(
-                                                                                                           section_name);
+                    data, section_name);
 
         return std::nullopt;
     }
@@ -344,8 +344,9 @@ namespace
         return extract_section_impl<MachHeader32, SegmentCommand32, Section32, lc_segment>(file, section_name);
     }
 
-    template<typename HeaderType, typename SegmentType, typename SectionType, std::uint32_t segment_cmd>
+    template<typename HeaderType, typename SegmentType, typename SectionType, std::uint32_t segment_cmd,
-    std::optional<std::uintptr_t> scan_in_module_impl(const std::byte* base, const std::string_view pattern,
+             class ScanPattern>
+    std::optional<std::uintptr_t> scan_in_module_impl(const std::byte* base, const ScanPattern scan_pattern,
                                                       const std::string_view target_section_name)
     {
         const auto* header = reinterpret_cast<const HeaderType*>(base);
@@ -374,12 +375,13 @@ namespace
                     continue;
                 }
                 const auto* section_begin = base + static_cast<std::size_t>(section->addr);
-                const auto* section_end = section_begin + static_cast<std::size_t>(section->size);
+                const auto scan_range =
+                        std::span<const std::byte>{section_begin, static_cast<std::size_t>(section->size)};
 
-                const auto scan_result = omath::PatternScanner::scan_for_pattern(section_begin, section_end, pattern);
+                const auto target_offset = scan_pattern(scan_range);
 
-                if (scan_result != section_end)
+                if (target_offset.has_value())
-                    return reinterpret_cast<std::uintptr_t>(scan_result);
+                    return reinterpret_cast<std::uintptr_t>(section_begin + target_offset.value());
             }
         }
 
@@ -404,12 +406,48 @@ namespace omath
         std::uint32_t magic{};
         std::memcpy(&magic, base, sizeof(magic));
 
+        const auto scan_pattern =
+                [&pattern](const std::span<const std::byte> section_data) -> std::optional<std::ptrdiff_t>
+        {
+            const auto scan_result =
+                    PatternScanner::scan_for_pattern(section_data.begin(), section_data.end(), pattern);
+
+            if (scan_result == section_data.end())
+                return std::nullopt;
+
+            return scan_result - section_data.begin();
+        };
+
         if (magic == mh_magic_64 || magic == mh_cigam_64)
-            return scan_in_module_impl<MachHeader64, SegmentCommand64, Section64, lc_segment_64>(base, pattern,
+            return scan_in_module_impl<MachHeader64, SegmentCommand64, Section64, lc_segment_64>(base, scan_pattern,
                                                                                                  target_section_name);
 
         if (magic == mh_magic_32 || magic == mh_cigam_32)
-            return scan_in_module_impl<MachHeader32, SegmentCommand32, Section32, lc_segment>(base, pattern,
+            return scan_in_module_impl<MachHeader32, SegmentCommand32, Section32, lc_segment>(base, scan_pattern,
+                                                                                              target_section_name);
+
+        return std::nullopt;
+    }
+
+    std::optional<std::uintptr_t>
+    MachOPatternScanner::scan_for_pattern_in_loaded_module(const void* module_base_address,
+                                                           const std::string_view& target_section_name,
+                                                           const SectionScanFunction scan_pattern)
+    {
+        if (module_base_address == nullptr) [[unlikely]]
+            return std::nullopt;
+
+        const auto* base = static_cast<const std::byte*>(module_base_address);
+
+        std::uint32_t magic{};
+        std::memcpy(&magic, base, sizeof(magic));
+
+        if (magic == mh_magic_64 || magic == mh_cigam_64)
+            return scan_in_module_impl<MachHeader64, SegmentCommand64, Section64, lc_segment_64>(base, scan_pattern,
+                                                                                                 target_section_name);
+
+        if (magic == mh_magic_32 || magic == mh_cigam_32)
+            return scan_in_module_impl<MachHeader32, SegmentCommand32, Section32, lc_segment>(base, scan_pattern,
                                                                                               target_section_name);
 
         return std::nullopt;
@@ -438,6 +476,27 @@ namespace omath
                                  .target_offset = offset};
     }
 
+    std::optional<SectionScanResult>
+    MachOPatternScanner::scan_for_pattern_in_file(const std::filesystem::path& path_to_file,
+                                                  const std::string_view& target_section_name,
+                                                  const SectionScanFunction scan_pattern)
+    {
+        const auto macho_section = get_macho_section_by_name(path_to_file, target_section_name);
+
+        if (!macho_section.has_value()) [[unlikely]]
+            return std::nullopt;
+
+        const auto target_offset =
+                scan_pattern(std::span<const std::byte>{macho_section->data.data(), macho_section->data.size()});
+
+        if (!target_offset.has_value())
+            return std::nullopt;
+
+        return SectionScanResult{.virtual_base_addr = macho_section->virtual_base_addr,
+                                 .raw_base_addr = macho_section->raw_base_addr,
+                                 .target_offset = target_offset.value()};
+    }
+
     std::optional<SectionScanResult>
     MachOPatternScanner::scan_for_pattern_in_memory_file(const std::span<const std::byte> file_data,
                                                          const std::string_view& pattern,
@@ -460,4 +519,24 @@ namespace omath
                                  .raw_base_addr = section->raw_base_addr,
                                  .target_offset = offset};
     }
+
+    std::optional<SectionScanResult>
+    MachOPatternScanner::scan_for_pattern_in_memory_file(const std::span<const std::byte> file_data,
+                                                         const std::string_view& target_section_name,
+                                                         const SectionScanFunction scan_pattern)
+    {
+        const auto section = get_macho_section_by_name_from_memory(file_data, target_section_name);
+
+        if (!section.has_value()) [[unlikely]]
+            return std::nullopt;
+
+        const auto target_offset = scan_pattern(std::span<const std::byte>{section->data.data(), section->data.size()});
+
+        if (!target_offset.has_value())
+            return std::nullopt;
+
+        return SectionScanResult{.virtual_base_addr = section->virtual_base_addr,
+                                 .raw_base_addr = section->raw_base_addr,
+                                 .target_offset = target_offset.value()};
+    }
 } // namespace omath

source/utility/pe_pattern_scan.cpp

@@ -234,8 +234,12 @@ namespace
     constexpr bool invalid_nt_header_file(const NtHeaderVariant& variant)
     {
         constexpr std::uint32_t nt_hdr_magic = 0x4550;
-        return std::visit([&nt_hdr_magic](const auto& header) -> bool { return header.signature != nt_hdr_magic; },
+        return std::visit(
-                          variant);
+                [&nt_hdr_magic](const auto& header) -> bool
+                {
+                    return header.signature != nt_hdr_magic;
+                },
+                variant);
     }
 
     struct ExtractedSection final
@@ -262,8 +266,7 @@ namespace
         if (nt_off + sizeof(ImageNtHeaders<NtArchitecture::x32_bit>) > data.size())
             return std::nullopt;
 
-        const auto* x86_hdrs =
+        const auto* x86_hdrs = reinterpret_cast<const ImageNtHeaders<NtArchitecture::x32_bit>*>(data.data() + nt_off);
-                reinterpret_cast<const ImageNtHeaders<NtArchitecture::x32_bit>*>(data.data() + nt_off);
 
         NtHeaderVariant nt_headers;
         if (x86_hdrs->optional_header.magic == opt_hdr32_magic)
@@ -284,8 +287,8 @@ namespace
                 [&data, &section_name, nt_off](const auto& concrete_headers) -> std::optional<ExtractedSection>
                 {
                     constexpr std::size_t sig_size = sizeof(concrete_headers.signature);
-                    const auto section_table_off = nt_off + sig_size + sizeof(FileHeader)
+                    const auto section_table_off =
-                                                   + concrete_headers.file_header.size_optional_header;
+                            nt_off + sig_size + sizeof(FileHeader) + concrete_headers.file_header.size_optional_header;
 
                     for (std::size_t i = 0; i < concrete_headers.file_header.num_sections; ++i)
                     {
@@ -435,6 +438,65 @@ namespace omath
                 },
                 nt_header_variant.value());
     }
+
+    std::optional<std::uintptr_t>
+    PePatternScanner::scan_for_pattern_in_loaded_module(const void* module_base_address,
+                                                        const std::string_view& target_section_name,
+                                                        const SectionScanFunction scan_pattern)
+    {
+        const auto base_address = reinterpret_cast<std::uintptr_t>(module_base_address);
+        const auto* base_bytes = static_cast<const std::byte*>(module_base_address);
+
+        if (!base_address)
+            return std::nullopt;
+
+        const auto* dos_header = static_cast<const DosHeader*>(module_base_address);
+
+        if (invalid_dos_header_file(*dos_header)) [[unlikely]]
+            return std::nullopt;
+
+        const auto nt_header_variant = get_nt_header_from_loaded_module(module_base_address);
+
+        if (!nt_header_variant) [[unlikely]]
+            return std::nullopt;
+
+        return std::visit(
+                [base_bytes, base_address, lfanew = dos_header->e_lfanew, &target_section_name,
+                 scan_pattern](const auto& nt_header) -> std::optional<std::uintptr_t>
+                {
+                    constexpr std::size_t signature_size = sizeof(nt_header.signature);
+                    const auto section_table_off = static_cast<std::size_t>(lfanew) + signature_size
+                                                   + sizeof(FileHeader) + nt_header.file_header.size_optional_header;
+
+                    const auto* section_table = reinterpret_cast<const SectionHeader*>(base_bytes + section_table_off);
+
+                    for (std::size_t i = 0; i < nt_header.file_header.num_sections; ++i)
+                    {
+                        const auto* section = section_table + i;
+
+                        if (std::string_view{section->name} != target_section_name
+                            || section->size_raw_data == 0)
+                            continue;
+
+                        const auto section_size = section->virtual_size != 0
+                                                          ? static_cast<std::size_t>(section->virtual_size)
+                                                          : static_cast<std::size_t>(section->size_raw_data);
+
+                        const auto* section_begin =
+                                reinterpret_cast<const std::byte*>(base_address + section->virtual_address);
+                        const auto scan_range = std::span<const std::byte>{section_begin, section_size};
+
+                        const auto target_offset = scan_pattern(scan_range);
+
+                        if (target_offset.has_value())
+                            return reinterpret_cast<std::uintptr_t>(section_begin + target_offset.value());
+                    }
+
+                    return std::nullopt;
+                },
+                nt_header_variant.value());
+    }
+
     std::optional<SectionScanResult>
     PePatternScanner::scan_for_pattern_in_file(const std::filesystem::path& path_to_file,
                                                const std::string_view& pattern,
@@ -457,6 +519,27 @@ namespace omath
                                  .target_offset = offset};
     }
 
+    std::optional<SectionScanResult>
+    PePatternScanner::scan_for_pattern_in_file(const std::filesystem::path& path_to_file,
+                                               const std::string_view& target_section_name,
+                                               const SectionScanFunction scan_pattern)
+    {
+        const auto pe_section = extract_section_from_pe_file(path_to_file, target_section_name);
+
+        if (!pe_section.has_value()) [[unlikely]]
+            return std::nullopt;
+
+        const auto target_offset =
+                scan_pattern(std::span<const std::byte>{pe_section->data.data(), pe_section->data.size()});
+
+        if (!target_offset.has_value())
+            return std::nullopt;
+
+        return SectionScanResult{.virtual_base_addr = pe_section->virtual_base_addr,
+                                 .raw_base_addr = pe_section->raw_base_addr,
+                                 .target_offset = target_offset.value()};
+    }
+
     std::optional<SectionScanResult>
     PePatternScanner::scan_for_pattern_in_memory_file(const std::span<const std::byte> file_data,
                                                       const std::string_view& pattern,
@@ -479,4 +562,25 @@ namespace omath
                                  .raw_base_addr = pe_section->raw_base_addr,
                                  .target_offset = offset};
     }
+
+    std::optional<SectionScanResult>
+    PePatternScanner::scan_for_pattern_in_memory_file(const std::span<const std::byte> file_data,
+                                                      const std::string_view& target_section_name,
+                                                      const SectionScanFunction scan_pattern)
+    {
+        const auto pe_section = extract_section_from_pe_memory(file_data, target_section_name);
+
+        if (!pe_section.has_value()) [[unlikely]]
+            return std::nullopt;
+
+        const auto target_offset =
+                scan_pattern(std::span<const std::byte>{pe_section->data.data(), pe_section->data.size()});
+
+        if (!target_offset.has_value())
+            return std::nullopt;
+
+        return SectionScanResult{.virtual_base_addr = pe_section->virtual_base_addr,
+                                 .raw_base_addr = pe_section->raw_base_addr,
+                                 .target_offset = target_offset.value()};
+    }
 } // namespace omath

tests/engines/unit_test_cry_engine.cpp

@@ -9,6 +9,98 @@
 #include <ranges>
 
 using namespace omath;
+
+#ifdef OMATH_USE_GCEM
+namespace
+{
+    constexpr bool close_to(const float actual, const float expected, const float epsilon)
+    {
+        const float diff = actual - expected;
+        return (diff < 0.0f ? -diff : diff) <= epsilon;
+    }
+
+    constexpr bool vec_close_to(const Vector3<float>& actual, const Vector3<float>& expected, const float epsilon)
+    {
+        return close_to(actual.x, expected.x, epsilon) && close_to(actual.y, expected.y, epsilon)
+               && close_to(actual.z, expected.z, epsilon);
+    }
+} // namespace
+
+static_assert(
+        []
+        {
+            constexpr omath::cry_engine::ViewAngles angles{};
+            constexpr auto forward = omath::cry_engine::forward_vector(angles);
+            constexpr auto right = omath::cry_engine::right_vector(angles);
+            constexpr auto up = omath::cry_engine::up_vector(angles);
+            constexpr auto rotation = omath::cry_engine::rotation_matrix(angles);
+
+            return vec_close_to(forward, omath::cry_engine::k_abs_forward, 1e-5f)
+                   && vec_close_to(right, omath::cry_engine::k_abs_right, 1e-5f)
+                   && vec_close_to(up, omath::cry_engine::k_abs_up, 1e-5f) && close_to(rotation.at(0, 0), 1.0f, 1e-5f)
+                   && close_to(rotation.at(1, 1), 1.0f, 1e-5f) && close_to(rotation.at(2, 2), 1.0f, 1e-5f)
+                   && close_to(rotation.at(3, 3), 1.0f, 1e-5f);
+        }(),
+        "CryEngine basis vectors should be constexpr with gcem");
+
+static_assert(
+        []
+        {
+            constexpr auto view = omath::cry_engine::calc_view_matrix({}, {});
+            return close_to(view.at(0, 0), 1.0f, 1e-5f) && close_to(view.at(1, 2), 1.0f, 1e-5f)
+                   && close_to(view.at(2, 1), 1.0f, 1e-5f) && close_to(view.at(3, 3), 1.0f, 1e-5f);
+        }(),
+        "CryEngine view matrix should be constexpr with gcem");
+
+static_assert(
+        []
+        {
+            constexpr auto transform = mat_translation<float, MatStoreType::ROW_MAJOR>({1.0f, 2.0f, 3.0f})
+                                       * mat_scale<float, MatStoreType::ROW_MAJOR>({2.0f, 3.0f, 4.0f});
+            constexpr auto origin = omath::cry_engine::extract_origin(transform);
+            constexpr auto scale = omath::cry_engine::extract_scale(transform);
+
+            return vec_close_to(origin, {1.0f, 2.0f, 3.0f}, 1e-5f) && vec_close_to(scale, {2.0f, 3.0f, 4.0f}, 1e-5f);
+        }(),
+        "CryEngine transform extraction should be constexpr with gcem");
+
+static_assert(
+        []
+        {
+            constexpr auto projection = omath::cry_engine::calc_perspective_projection_matrix(
+                    90.0f, 1.0f, 1.0f, 11.0f, NDCDepthRange::ZERO_TO_ONE);
+            return close_to(projection.at(0, 0), 1.0f, 1e-5f) && close_to(projection.at(1, 1), 1.0f, 1e-5f)
+                   && close_to(projection.at(2, 2), 1.1f, 1e-5f) && close_to(projection.at(2, 3), -1.1f, 1e-5f)
+                   && close_to(projection.at(3, 2), 1.0f, 1e-5f);
+        }(),
+        "CryEngine projection matrix should be constexpr with gcem");
+
+static_assert(
+        []
+        {
+            constexpr auto angles =
+                    omath::cry_engine::CameraTrait::calc_look_at_angle({}, omath::cry_engine::k_abs_forward);
+            constexpr auto view = omath::cry_engine::CameraTrait::calc_view_matrix(angles, {});
+            constexpr auto projection = omath::cry_engine::CameraTrait::calc_projection_matrix(
+                    projection::FieldOfView::from_degrees(90.0f), {1.0f, 1.0f}, 1.0f, 11.0f,
+                    NDCDepthRange::ZERO_TO_ONE);
+
+            return close_to(angles.pitch.as_degrees(), 0.0f, 1e-5f) && close_to(angles.yaw.as_degrees(), 0.0f, 1e-5f)
+                   && close_to(angles.roll.as_degrees(), 0.0f, 1e-5f) && close_to(view.at(0, 0), 1.0f, 1e-5f)
+                   && close_to(view.at(2, 1), 1.0f, 1e-5f) && close_to(projection.at(0, 0), 1.0f, 1e-5f)
+                   && close_to(projection.at(1, 1), 1.0f, 1e-5f) && close_to(projection.at(2, 2), 1.1f, 1e-5f)
+                   && close_to(projection.at(2, 3), -1.1f, 1e-5f) && close_to(projection.at(3, 2), 1.0f, 1e-5f);
+        }(),
+        "CryEngine CameraTrait should be constexpr with gcem");
+
+static_assert(omath::cry_engine::units_to_centimeters(100.0f) == 1.0f);
+static_assert(omath::cry_engine::units_to_meters(2.0f) == 2.0f);
+static_assert(omath::cry_engine::units_to_kilometers(2000.0f) == 2.0f);
+static_assert(omath::cry_engine::centimeters_to_units(1.0f) == 100.0f);
+static_assert(omath::cry_engine::meters_to_units(2.0f) == 2.0f);
+static_assert(omath::cry_engine::kilometers_to_units(2.0f) == 2000.0f);
+#endif
+
 TEST(unit_test_cry_engine, look_at_forward)
 {
     const auto angles = cry_engine::CameraTrait::calc_look_at_angle({}, cry_engine::k_abs_forward);
@@ -251,11 +343,9 @@ TEST(unit_test_cry_engine, ViewAnglesAsVector3Zero)
 
 TEST(unit_test_cry_engine, ViewAnglesAsVector3Values)
 {
-    const omath::cry_engine::ViewAngles angles{
+    const omath::cry_engine::ViewAngles angles{omath::cry_engine::PitchAngle::from_degrees(45.f),
-        omath::cry_engine::PitchAngle::from_degrees(45.f),
+                                               omath::cry_engine::YawAngle::from_degrees(-90.f),
-        omath::cry_engine::YawAngle::from_degrees(-90.f),
+                                               omath::cry_engine::RollAngle::from_degrees(30.f)};
-        omath::cry_engine::RollAngle::from_degrees(30.f)
-    };
     const auto vec = angles.as_vector3();
 
     EXPECT_FLOAT_EQ(vec.x, 45.f);
@@ -266,11 +356,9 @@ TEST(unit_test_cry_engine, ViewAnglesAsVector3Values)
 TEST(unit_test_cry_engine, ViewAnglesAsVector3ClampedPitch)
 {
     // Pitch is clamped to [-90, 90]
-    const omath::cry_engine::ViewAngles angles{
+    const omath::cry_engine::ViewAngles angles{omath::cry_engine::PitchAngle::from_degrees(120.f),
-        omath::cry_engine::PitchAngle::from_degrees(120.f),
+                                               omath::cry_engine::YawAngle::from_degrees(0.f),
-        omath::cry_engine::YawAngle::from_degrees(0.f),
+                                               omath::cry_engine::RollAngle::from_degrees(0.f)};
-        omath::cry_engine::RollAngle::from_degrees(0.f)
-    };
     const auto vec = angles.as_vector3();
 
     EXPECT_FLOAT_EQ(vec.x, 90.f);
@@ -279,11 +367,9 @@ TEST(unit_test_cry_engine, ViewAnglesAsVector3ClampedPitch)
 TEST(unit_test_cry_engine, ViewAnglesAsVector3NormalizedYaw)
 {
     // Yaw is normalized to [-180, 180], 270 wraps to -90
-    const omath::cry_engine::ViewAngles angles{
+    const omath::cry_engine::ViewAngles angles{omath::cry_engine::PitchAngle::from_degrees(0.f),
-        omath::cry_engine::PitchAngle::from_degrees(0.f),
+                                               omath::cry_engine::YawAngle::from_degrees(270.f),
-        omath::cry_engine::YawAngle::from_degrees(270.f),
+                                               omath::cry_engine::RollAngle::from_degrees(0.f)};
-        omath::cry_engine::RollAngle::from_degrees(0.f)
-    };
     const auto vec = angles.as_vector3();
 
     EXPECT_NEAR(vec.y, -90.f, 0.01f);

tests/general/unit_test_angle.cpp

@@ -2,10 +2,10 @@
 // Created by Orange on 11/30/2024.
 //
 
-#include <omath/trigonometry/angle.hpp>
 #include <cmath>
 #include <gtest/gtest.h>
 #include <numbers>
+#include <omath/trigonometry/angle.hpp>
 
 using namespace omath;
 
@@ -19,6 +19,14 @@ namespace
 
     constexpr float k_eps = 1e-5f;
 
+#ifdef OMATH_USE_GCEM
+    constexpr bool close_to(const float actual, const float expected, const float epsilon)
+    {
+        const float diff = actual - expected;
+        return (diff < 0.0f ? -diff : diff) <= epsilon;
+    }
+#endif
+
 } // namespace
 
 // ---------- Construction / factories ----------
@@ -190,3 +198,11 @@ TEST(UnitTestAngle, BinaryMinus_ReturnsWrappedDiff)
     const Deg c = a - b; // expect 340°
     EXPECT_FLOAT_EQ(c.as_degrees(), 340.0f);
 }
+
+#ifdef OMATH_USE_GCEM
+static_assert(close_to(Pitch::from_degrees(0.0f).sin(), 0.0f, k_eps), "Sin should be constexpr with gcem");
+static_assert(close_to(Pitch::from_degrees(0.0f).cos(), 1.0f, k_eps), "Cos should be constexpr with gcem");
+static_assert(close_to(Pitch::from_degrees(45.0f).tan(), 1.0f, 1e-4f), "Tan should be constexpr with gcem");
+static_assert(close_to(Pitch::from_degrees(45.0f).cot(), 1.0f, 1e-4f), "Cot should be constexpr with gcem");
+static_assert(close_to(Pitch::from_degrees(45.0f).atan(), 0.66577375f, 1e-6f), "Atan should be constexpr with gcem");
+#endif

tests/general/unit_test_elf_scanner.cpp

@@ -35,13 +35,22 @@ static std::vector<std::byte> make_elf64_with_text_section(const std::vector<std
 
     std::vector<std::byte> buf(total_size, std::byte{0});
 
-    auto w8 = [&](std::size_t off, std::uint8_t v) { buf[off] = std::byte{v}; };
+    auto w8 = [&](std::size_t off, std::uint8_t v)
+    {
+        buf[off] = std::byte{v};
+    };
     auto w16 = [&](std::size_t off, std::uint16_t v)
-    { std::memcpy(buf.data() + off, &v, 2); };
+    {
+        std::memcpy(buf.data() + off, &v, 2);
+    };
     auto w32 = [&](std::size_t off, std::uint32_t v)
-    { std::memcpy(buf.data() + off, &v, 4); };
+    {
+        std::memcpy(buf.data() + off, &v, 4);
+    };
     auto w64 = [&](std::size_t off, std::uint64_t v)
-    { std::memcpy(buf.data() + off, &v, 8); };
+    {
+        std::memcpy(buf.data() + off, &v, 8);
+    };
 
     // --- ELF64 file header ---
     // e_ident
@@ -53,19 +62,19 @@ static std::vector<std::byte> make_elf64_with_text_section(const std::vector<std
     w8(5, 1); // ELFDATA2LSB
     w8(6, 1); // EV_CURRENT
     // rest of e_ident is 0
-    w16(16, 2);  // e_type = ET_EXEC
+    w16(16, 2); // e_type = ET_EXEC
     w16(18, 62); // e_machine = EM_X86_64
-    w32(20, 1);  // e_version
+    w32(20, 1); // e_version
-    w64(24, 0);  // e_entry
+    w64(24, 0); // e_entry
-    w64(32, 0);  // e_phoff
+    w64(32, 0); // e_phoff
     w64(40, static_cast<std::uint64_t>(shdr_table_off)); // e_shoff
-    w32(48, 0);  // e_flags
+    w32(48, 0); // e_flags
     w16(52, 64); // e_ehsize
     w16(54, 56); // e_phentsize
-    w16(56, 0);  // e_phnum
+    w16(56, 0); // e_phnum
     w16(58, static_cast<std::uint16_t>(shdr_size)); // e_shentsize
     w16(60, static_cast<std::uint16_t>(num_sections)); // e_shnum
-    w16(62, 2);  // e_shstrndx = 2 (.shstrtab is section index 2)
+    w16(62, 2); // e_shstrndx = 2 (.shstrtab is section index 2)
 
     // --- section data (.text) ---
     const std::size_t copy_len = std::min(code_bytes.size(), text_size);
@@ -104,9 +113,9 @@ static std::vector<std::byte> make_elf64_with_text_section(const std::vector<std
     // Section 1: .text
     {
         const std::size_t base = shdr_table_off + 1 * shdr_size;
-        w32(base + 0, 1);  // sh_name → index 1 in shstrtab → ".text"
+        w32(base + 0, 1); // sh_name → index 1 in shstrtab → ".text"
-        w32(base + 4, 1);  // sh_type = SHT_PROGBITS
+        w32(base + 4, 1); // sh_type = SHT_PROGBITS
-        w64(base + 8, 6);  // sh_flags = SHF_ALLOC|SHF_EXECINSTR
+        w64(base + 8, 6); // sh_flags = SHF_ALLOC|SHF_EXECINSTR
         w64(base + 16, static_cast<std::uint64_t>(text_off)); // sh_addr (same as offset in test)
         w64(base + 24, static_cast<std::uint64_t>(text_off)); // sh_offset
         w64(base + 32, static_cast<std::uint64_t>(text_size)); // sh_size
@@ -116,8 +125,8 @@ static std::vector<std::byte> make_elf64_with_text_section(const std::vector<std
     // Section 2: .shstrtab
     {
         const std::size_t base = shdr_table_off + 2 * shdr_size;
-        w32(base + 0, 0);  // sh_name → index 0 → "" (good enough for scanner)
+        w32(base + 0, 0); // sh_name → index 0 → "" (good enough for scanner)
-        w32(base + 4, 3);  // sh_type = SHT_STRTAB
+        w32(base + 4, 3); // sh_type = SHT_STRTAB
         w64(base + 24, static_cast<std::uint64_t>(shstrtab_off)); // sh_offset
         w64(base + 32, static_cast<std::uint64_t>(shstrtab_size)); // sh_size
     }
@@ -151,6 +160,18 @@ TEST(unit_test_elf_pattern_scan_memory, finds_pattern_with_wildcard)
     EXPECT_EQ(result->target_offset, 0);
 }
 
+TEST(unit_test_elf_pattern_scan_memory, consteval_finds_pattern_with_wildcard)
+{
+    const std::vector<std::uint8_t> code = {0x00, 0xDE, 0xAD, 0xBE, 0xEF};
+    const auto buf = make_elf64_with_text_section(code);
+
+    const auto result =
+            ElfPatternScanner::scan_for_pattern_in_memory_file<"DE ?? BE EF">(std::span<const std::byte>{buf}, ".text");
+
+    ASSERT_TRUE(result.has_value());
+    EXPECT_EQ(result->target_offset, 1);
+}
+
 TEST(unit_test_elf_pattern_scan_memory, pattern_not_found_returns_nullopt)
 {
     const std::vector<std::uint8_t> code = {0x01, 0x02, 0x03, 0x04};
@@ -182,8 +203,8 @@ TEST(unit_test_elf_pattern_scan_memory, missing_section_returns_nullopt)
     const std::vector<std::uint8_t> code = {0x90, 0x90};
     const auto buf = make_elf64_with_text_section(code);
 
-    const auto result = ElfPatternScanner::scan_for_pattern_in_memory_file(std::span<const std::byte>{buf},
+    const auto result = ElfPatternScanner::scan_for_pattern_in_memory_file(std::span<const std::byte>{buf}, "90 90",
-                                                                            "90 90", ".nonexistent");
+                                                                           ".nonexistent");
 
     EXPECT_FALSE(result.has_value());
 }
@@ -201,8 +222,8 @@ TEST(unit_test_elf_pattern_scan_memory, matches_file_scan)
     }
 
     const auto file_result = ElfPatternScanner::scan_for_pattern_in_file(tmp_path, "48 89 E5 DE AD", ".text");
-    const auto mem_result =
+    const auto mem_result = ElfPatternScanner::scan_for_pattern_in_memory_file(std::span<const std::byte>{buf},
-            ElfPatternScanner::scan_for_pattern_in_memory_file(std::span<const std::byte>{buf}, "48 89 E5 DE AD", ".text");
+                                                                               "48 89 E5 DE AD", ".text");
 
     std::filesystem::remove(tmp_path);
 
@@ -212,3 +233,27 @@ TEST(unit_test_elf_pattern_scan_memory, matches_file_scan)
     EXPECT_EQ(file_result->raw_base_addr, mem_result->raw_base_addr);
     EXPECT_EQ(file_result->target_offset, mem_result->target_offset);
 }
+
+TEST(unit_test_elf_pattern_scan_memory, consteval_file_scan_finds_pattern)
+{
+    const std::vector<std::uint8_t> code = {0x48, 0x89, 0xE5, 0xDE, 0xAD};
+    const auto buf = make_elf64_with_text_section(code);
+    const auto tmp_path = std::filesystem::temp_directory_path() / "omath_elf_consteval_test.elf";
+    {
+        std::ofstream out(tmp_path, std::ios::binary);
+        out.write(reinterpret_cast<const char*>(buf.data()), static_cast<std::streamsize>(buf.size()));
+    }
+
+    const auto result = ElfPatternScanner::scan_for_pattern_in_file<"48 ?? E5">(tmp_path, ".text");
+
+    std::filesystem::remove(tmp_path);
+
+    ASSERT_TRUE(result.has_value());
+    EXPECT_EQ(result->target_offset, 0);
+}
+
+TEST(unit_test_elf_pattern_scan_memory, consteval_loaded_module_null_returns_nullopt)
+{
+    const auto result = ElfPatternScanner::scan_for_pattern_in_loaded_module<"DE AD">(nullptr);
+    EXPECT_FALSE(result.has_value());
+}

tests/general/unit_test_macho_memory_file_scan.cpp

@@ -1,5 +1,7 @@
 // Tests for MachOPatternScanner::scan_for_pattern_in_memory_file
 #include <cstring>
+#include <filesystem>
+#include <fstream>
 #include <gtest/gtest.h>
 #include <omath/utility/macho_pattern_scan.hpp>
 #include <span>
@@ -37,38 +39,43 @@ static std::vector<std::byte> make_macho64_with_text_section(const std::vector<s
     constexpr std::size_t total_size = text_raw_off + text_raw_size;
     constexpr std::uint64_t text_vmaddr = 0x1000ULL;
 
-    constexpr std::uint32_t cmd_size =
+    constexpr std::uint32_t cmd_size = static_cast<std::uint32_t>(seg_size + sect_hdr_size); // segment + 1 section
-            static_cast<std::uint32_t>(seg_size + sect_hdr_size); // segment + 1 section
 
     std::vector<std::byte> buf(total_size, std::byte{0});
 
-    auto w32 = [&](std::size_t off, std::uint32_t v) { std::memcpy(buf.data() + off, &v, 4); };
+    auto w32 = [&](std::size_t off, std::uint32_t v)
-    auto w64 = [&](std::size_t off, std::uint64_t v) { std::memcpy(buf.data() + off, &v, 8); };
+    {
+        std::memcpy(buf.data() + off, &v, 4);
+    };
+    auto w64 = [&](std::size_t off, std::uint64_t v)
+    {
+        std::memcpy(buf.data() + off, &v, 8);
+    };
 
     // MachHeader64
     w32(0, mh_magic_64);
-    w32(4, 0x0100000C);  // cputype = CPU_TYPE_ARM64 (doesn't matter for scan)
+    w32(4, 0x0100000C); // cputype = CPU_TYPE_ARM64 (doesn't matter for scan)
-    w32(12, 2);           // filetype = MH_EXECUTE
+    w32(12, 2); // filetype = MH_EXECUTE
-    w32(16, 1);           // ncmds = 1
+    w32(16, 1); // ncmds = 1
-    w32(20, cmd_size);    // sizeofcmds
+    w32(20, cmd_size); // sizeofcmds
 
     // SegmentCommand64 at 0x20
     constexpr std::size_t seg_off = hdr_size;
     w32(seg_off + 0, lc_segment_64);
     w32(seg_off + 4, cmd_size);
     std::memcpy(buf.data() + seg_off + 8, "__TEXT", 6); // segname
-    w64(seg_off + 24, text_vmaddr);                      // vmaddr
+    w64(seg_off + 24, text_vmaddr); // vmaddr
-    w64(seg_off + 32, text_raw_size);                    // vmsize
+    w64(seg_off + 32, text_raw_size); // vmsize
-    w64(seg_off + 40, text_raw_off);                     // fileoff
+    w64(seg_off + 40, text_raw_off); // fileoff
-    w64(seg_off + 48, text_raw_size);                    // filesize
+    w64(seg_off + 48, text_raw_size); // filesize
-    w32(seg_off + 64, 1);                                // nsects
+    w32(seg_off + 64, 1); // nsects
 
     // Section64 at 0x68
     constexpr std::size_t sect_off = seg_off + seg_size;
-    std::memcpy(buf.data() + sect_off + 0, "__text", 6);  // sectname
+    std::memcpy(buf.data() + sect_off + 0, "__text", 6); // sectname
     std::memcpy(buf.data() + sect_off + 16, "__TEXT", 6); // segname
-    w64(sect_off + 32, text_vmaddr);                       // addr
+    w64(sect_off + 32, text_vmaddr); // addr
-    w64(sect_off + 40, text_raw_size);                     // size
+    w64(sect_off + 40, text_raw_size); // size
     w32(sect_off + 48, static_cast<std::uint32_t>(text_raw_off)); // offset (file offset)
 
     // Section data
@@ -105,6 +112,18 @@ TEST(unit_test_macho_memory_file_scan, finds_pattern_with_wildcard)
     EXPECT_EQ(result->target_offset, 0);
 }
 
+TEST(unit_test_macho_memory_file_scan, consteval_finds_pattern_with_wildcard)
+{
+    const std::vector<std::uint8_t> code = {0x00, 0xDE, 0xAD, 0xBE, 0xEF};
+    const auto buf = make_macho64_with_text_section(code);
+
+    const auto result =
+            MachOPatternScanner::scan_for_pattern_in_memory_file<"DE ?? BE EF">(std::span<const std::byte>{buf});
+
+    ASSERT_TRUE(result.has_value());
+    EXPECT_EQ(result->target_offset, 1);
+}
+
 TEST(unit_test_macho_memory_file_scan, pattern_not_found_returns_nullopt)
 {
     const std::vector<std::uint8_t> code = {0x01, 0x02, 0x03};
@@ -143,3 +162,27 @@ TEST(unit_test_macho_memory_file_scan, raw_addr_and_virtual_addr_correct)
     EXPECT_EQ(result->raw_base_addr, expected_raw_off);
     EXPECT_EQ(result->virtual_base_addr, 0x1000u);
 }
+
+TEST(unit_test_macho_memory_file_scan, consteval_file_scan_finds_pattern)
+{
+    const std::vector<std::uint8_t> code = {0x48, 0x89, 0xE5, 0xDE, 0xAD};
+    const auto buf = make_macho64_with_text_section(code);
+    const auto tmp_path = std::filesystem::temp_directory_path() / "omath_macho_consteval_test.bin";
+    {
+        std::ofstream out(tmp_path, std::ios::binary);
+        out.write(reinterpret_cast<const char*>(buf.data()), static_cast<std::streamsize>(buf.size()));
+    }
+
+    const auto result = MachOPatternScanner::scan_for_pattern_in_file<"48 ?? E5">(tmp_path);
+
+    std::filesystem::remove(tmp_path);
+
+    ASSERT_TRUE(result.has_value());
+    EXPECT_EQ(result->target_offset, 0);
+}
+
+TEST(unit_test_macho_memory_file_scan, consteval_loaded_module_null_returns_nullopt)
+{
+    const auto result = MachOPatternScanner::scan_for_pattern_in_loaded_module<"DE AD">(nullptr);
+    EXPECT_FALSE(result.has_value());
+}

tests/general/unit_test_mat.cpp

@@ -1,11 +1,25 @@
 // UnitTestMat.cpp
 #include "omath/linear_algebra/mat.hpp"
 #include "omath/linear_algebra/vector3.hpp"
+#include "omath/trigonometry/angle.hpp"
 #include "omath/trigonometry/angles.hpp"
 #include <gtest/gtest.h>
 
 using namespace omath;
 
+#ifdef OMATH_USE_GCEM
+namespace
+{
+    using Pitch = Angle<float, static_cast<float>(-90), static_cast<float>(90), AngleFlags::Clamped>;
+
+    constexpr bool close_to(const float actual, const float expected, const float epsilon)
+    {
+        const float diff = actual - expected;
+        return (diff < 0.0f ? -diff : diff) <= epsilon;
+    }
+} // namespace
+#endif
+
 class UnitTestMat : public ::testing::Test
 {
 protected:
@@ -523,3 +537,47 @@ TEST(UnitTestMatStandalone, MatOrthoNegativeOneToOneDefault)
 
     EXPECT_EQ(ortho_default, ortho_explicit);
 }
+
+#ifdef OMATH_USE_GCEM
+static_assert(
+        []
+        {
+            constexpr auto scale = mat_extract_scale(mat_scale(Vector3{2.0f, 3.0f, 4.0f}));
+            return close_to(scale.x, 2.0f, 1e-5f) && close_to(scale.y, 3.0f, 1e-5f) && close_to(scale.z, 4.0f, 1e-5f);
+        }(),
+        "Mat scale extraction should be constexpr with gcem");
+
+static_assert(
+        []
+        {
+            constexpr auto rotation = mat_rotation_axis_z<float>(Pitch::from_degrees(90.0f));
+            return close_to(rotation.at(0, 0), 0.0f, 1e-5f) && close_to(rotation.at(0, 1), -1.0f, 1e-5f)
+                   && close_to(rotation.at(1, 0), 1.0f, 1e-5f) && close_to(rotation.at(1, 1), 0.0f, 1e-5f)
+                   && close_to(rotation.at(2, 2), 1.0f, 1e-5f) && close_to(rotation.at(3, 3), 1.0f, 1e-5f);
+        }(),
+        "Mat rotation should be constexpr with gcem");
+
+static_assert(
+        []
+        {
+            constexpr auto projection =
+                    mat_perspective_left_handed_vertical_fov<float, MatStoreType::ROW_MAJOR,
+                                                             NDCDepthRange::ZERO_TO_ONE>(90.0f, 1.0f, 1.0f, 11.0f);
+            return close_to(projection.at(0, 0), 1.0f, 1e-5f) && close_to(projection.at(1, 1), 1.0f, 1e-5f)
+                   && close_to(projection.at(2, 2), 1.1f, 1e-5f) && close_to(projection.at(2, 3), -1.1f, 1e-5f)
+                   && close_to(projection.at(3, 2), 1.0f, 1e-5f);
+        }(),
+        "Mat vertical-FOV perspective should be constexpr with gcem");
+
+static_assert(
+        []
+        {
+            constexpr auto projection =
+                    mat_perspective_right_handed_horizontal_fov<float, MatStoreType::ROW_MAJOR,
+                                                                NDCDepthRange::ZERO_TO_ONE>(90.0f, 2.0f, 1.0f, 11.0f);
+            return close_to(projection.at(0, 0), 1.0f, 1e-5f) && close_to(projection.at(1, 1), 2.0f, 1e-5f)
+                   && close_to(projection.at(2, 2), -1.1f, 1e-5f) && close_to(projection.at(2, 3), -1.1f, 1e-5f)
+                   && close_to(projection.at(3, 2), -1.0f, 1e-5f);
+        }(),
+        "Mat horizontal-FOV perspective should be constexpr with gcem");
+#endif

tests/general/unit_test_pattern_scan.cpp

@@ -4,8 +4,8 @@
 #include "omath/utility/pe_pattern_scan.hpp"
 #include "gtest/gtest.h"
 #include <omath/utility/pattern_scan.hpp>
-#include <source_location>
 #include <print>
+#include <source_location>
 TEST(unit_test_pattern_scan, read_test)
 {
     const auto result = omath::PatternScanner::parse_pattern("FF ? ?? E9");
@@ -51,3 +51,37 @@ TEST(unit_test_pattern_scan, corner_case_4)
     const auto result = omath::PatternScanner::parse_pattern("X ? ?? E9 ");
     EXPECT_FALSE(result.has_value());
 }
+
+TEST(unit_test_pattern_scan, consteval_read_test)
+{
+    constexpr auto result = omath::PatternScanner::parse_pattern<"FF ? ?? E9">();
+
+    static_assert(result.size() == 4);
+    static_assert(result[0] == static_cast<std::byte>(0xFF));
+    static_assert(result[1] == std::nullopt);
+    static_assert(result[2] == std::nullopt);
+    static_assert(result[3] == static_cast<std::byte>(0xE9));
+
+    EXPECT_EQ(result[0], static_cast<std::byte>(0xFF));
+    EXPECT_EQ(result[1], std::nullopt);
+    EXPECT_EQ(result[2], std::nullopt);
+    EXPECT_EQ(result[3], static_cast<std::byte>(0xE9));
+}
+
+TEST(unit_test_pattern_scan, consteval_spacing_and_case)
+{
+    constexpr auto result = omath::PatternScanner::parse_pattern<" \tde\nAD\r?? ? ef ">();
+
+    static_assert(result.size() == 5);
+    static_assert(result[0] == static_cast<std::byte>(0xDE));
+    static_assert(result[1] == static_cast<std::byte>(0xAD));
+    static_assert(result[2] == std::nullopt);
+    static_assert(result[3] == std::nullopt);
+    static_assert(result[4] == static_cast<std::byte>(0xEF));
+
+    EXPECT_EQ(result[0], static_cast<std::byte>(0xDE));
+    EXPECT_EQ(result[1], static_cast<std::byte>(0xAD));
+    EXPECT_EQ(result[2], std::nullopt);
+    EXPECT_EQ(result[3], std::nullopt);
+    EXPECT_EQ(result[4], static_cast<std::byte>(0xEF));
+}

tests/general/unit_test_pattern_scan_extra.cpp

@@ -14,6 +14,16 @@ TEST(unit_test_pattern_scan_extra, IteratorScanFound)
     EXPECT_EQ(std::distance(buf.begin(), it), 0);
 }
 
+TEST(unit_test_pattern_scan_extra, ConstevalIteratorScan)
+{
+    std::vector<std::byte> buf = {static_cast<std::byte>(0x00), static_cast<std::byte>(0xDE),
+                                  static_cast<std::byte>(0xAD), static_cast<std::byte>(0xBE),
+                                  static_cast<std::byte>(0xEF), static_cast<std::byte>(0x11)};
+    const auto it = PatternScanner::scan_for_pattern<"DE ?? BE EF">(buf.begin(), buf.end());
+    EXPECT_NE(it, buf.end());
+    EXPECT_EQ(std::distance(buf.begin(), it), 1);
+}
+
 TEST(unit_test_pattern_scan_extra, IteratorScanNotFound)
 {
     std::vector<std::byte> buf = {static_cast<std::byte>(0x00), static_cast<std::byte>(0x11),

tests/general/unit_test_pe_memory_file_scan.cpp

@@ -1,5 +1,7 @@
 // Tests for PePatternScanner::scan_for_pattern_in_memory_file
 #include <cstring>
+#include <filesystem>
+#include <fstream>
 #include <gtest/gtest.h>
 #include <omath/utility/pe_pattern_scan.hpp>
 #include <span>
@@ -10,8 +12,7 @@ using namespace omath;
 // Reuse the fake-module builder from unit_test_pe_pattern_scan_loaded.cpp but
 // lay out the buffer as a raw PE *file* (ptr_raw_data != virtual_address).
 static std::vector<std::byte> make_fake_pe_file(std::uint32_t virtual_address, std::uint32_t ptr_raw_data,
-                                                std::uint32_t section_size,
+                                                std::uint32_t section_size, const std::vector<std::uint8_t>& code_bytes)
-                                                const std::vector<std::uint8_t>& code_bytes)
 {
     constexpr std::uint32_t e_lfanew = 0x80;
     constexpr std::uint32_t nt_sig = 0x4550;
@@ -24,9 +25,18 @@ static std::vector<std::byte> make_fake_pe_file(std::uint32_t virtual_address, s
     const std::uint32_t total_size = ptr_raw_data + section_size + 0x100;
     std::vector<std::byte> buf(total_size, std::byte{0});
 
-    auto w16 = [&](std::size_t off, std::uint16_t v) { std::memcpy(buf.data() + off, &v, 2); };
+    auto w16 = [&](std::size_t off, std::uint16_t v)
-    auto w32 = [&](std::size_t off, std::uint32_t v) { std::memcpy(buf.data() + off, &v, 4); };
+    {
-    auto w64 = [&](std::size_t off, std::uint64_t v) { std::memcpy(buf.data() + off, &v, 8); };
+        std::memcpy(buf.data() + off, &v, 2);
+    };
+    auto w32 = [&](std::size_t off, std::uint32_t v)
+    {
+        std::memcpy(buf.data() + off, &v, 4);
+    };
+    auto w64 = [&](std::size_t off, std::uint64_t v)
+    {
+        std::memcpy(buf.data() + off, &v, 8);
+    };
 
     // DOS header
     w16(0x00, 0x5A4D);
@@ -48,10 +58,10 @@ static std::vector<std::byte> make_fake_pe_file(std::uint32_t virtual_address, s
     // Section header (.text)
     const std::size_t sh_off = section_table_off;
     std::memcpy(buf.data() + sh_off, ".text", 5);
-    w32(sh_off + 8, section_size);        // VirtualSize
+    w32(sh_off + 8, section_size); // VirtualSize
-    w32(sh_off + 12, virtual_address);    // VirtualAddress
+    w32(sh_off + 12, virtual_address); // VirtualAddress
-    w32(sh_off + 16, section_size);       // SizeOfRawData
+    w32(sh_off + 16, section_size); // SizeOfRawData
-    w32(sh_off + 20, ptr_raw_data);       // PointerToRawData
+    w32(sh_off + 20, ptr_raw_data); // PointerToRawData
 
     // Place code at raw file offset
     const std::size_t copy_len = std::min(code_bytes.size(), static_cast<std::size_t>(section_size));
@@ -87,13 +97,24 @@ TEST(unit_test_pe_memory_file_scan, finds_pattern_with_wildcard)
     EXPECT_EQ(result->target_offset, 0);
 }
 
+TEST(unit_test_pe_memory_file_scan, consteval_finds_pattern_with_wildcard)
+{
+    const std::vector<std::uint8_t> code = {0x00, 0xDE, 0xAD, 0xBE, 0xEF};
+    const auto buf = make_fake_pe_file(0x2000, 0x600, static_cast<std::uint32_t>(code.size()), code);
+
+    const auto result =
+            PePatternScanner::scan_for_pattern_in_memory_file<"DE ?? BE EF">(std::span<const std::byte>{buf});
+
+    ASSERT_TRUE(result.has_value());
+    EXPECT_EQ(result->target_offset, 1);
+}
+
 TEST(unit_test_pe_memory_file_scan, pattern_not_found_returns_nullopt)
 {
     const std::vector<std::uint8_t> code = {0x01, 0x02, 0x03};
     const auto buf = make_fake_pe_file(0x1000, 0x400, static_cast<std::uint32_t>(code.size()), code);
 
-    const auto result =
+    const auto result = PePatternScanner::scan_for_pattern_in_memory_file(std::span<const std::byte>{buf}, "AA BB CC");
-            PePatternScanner::scan_for_pattern_in_memory_file(std::span<const std::byte>{buf}, "AA BB CC");
 
     EXPECT_FALSE(result.has_value());
 }
@@ -126,3 +147,27 @@ TEST(unit_test_pe_memory_file_scan, raw_addr_differs_from_virtual_address)
     // virtual_base_addr = virtual_address + image_base (image_base = 0)
     EXPECT_EQ(result->virtual_base_addr, 0x3000u);
 }
+
+TEST(unit_test_pe_memory_file_scan, consteval_file_scan_finds_pattern)
+{
+    const std::vector<std::uint8_t> code = {0x48, 0x89, 0xE5, 0xDE, 0xAD};
+    const auto buf = make_fake_pe_file(0x2000, 0x600, static_cast<std::uint32_t>(code.size()), code);
+    const auto tmp_path = std::filesystem::temp_directory_path() / "omath_pe_consteval_test.exe";
+    {
+        std::ofstream out(tmp_path, std::ios::binary);
+        out.write(reinterpret_cast<const char*>(buf.data()), static_cast<std::streamsize>(buf.size()));
+    }
+
+    const auto result = PePatternScanner::scan_for_pattern_in_file<"48 ?? E5">(tmp_path);
+
+    std::filesystem::remove(tmp_path);
+
+    ASSERT_TRUE(result.has_value());
+    EXPECT_EQ(result->target_offset, 0);
+}
+
+TEST(unit_test_pe_memory_file_scan, consteval_loaded_module_null_returns_nullopt)
+{
+    const auto result = PePatternScanner::scan_for_pattern_in_loaded_module<"DE AD">(nullptr);
+    EXPECT_FALSE(result.has_value());
+}

tests/general/unit_test_triangle.cpp

@@ -8,6 +8,17 @@
 
 using namespace omath;
 
+#ifdef OMATH_USE_GCEM
+namespace
+{
+    constexpr bool close_to(const float actual, const float expected, const float epsilon)
+    {
+        const float diff = actual - expected;
+        return (diff < 0.0f ? -diff : diff) <= epsilon;
+    }
+} // namespace
+#endif
+
 class UnitTestTriangle : public ::testing::Test
 {
 protected:
@@ -129,3 +140,20 @@ TEST_F(UnitTestTriangle, MidPoint)
     EXPECT_FLOAT_EQ(mid2.y, (2.0f + 5.0f + 8.0f) / 3.0f);
     EXPECT_FLOAT_EQ(mid2.z, (3.0f + 6.0f + 9.0f) / 3.0f);
 }
+
+#ifdef OMATH_USE_GCEM
+static_assert(
+        []
+        {
+            constexpr Triangle<Vector3<float>> triangle{{3.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 4.0f, 0.0f}};
+            constexpr auto normal = triangle.calculate_normal();
+            constexpr auto mid_point = triangle.mid_point();
+
+            return close_to(triangle.side_a_length(), 3.0f, 1e-5f) && close_to(triangle.side_b_length(), 4.0f, 1e-5f)
+                   && close_to(triangle.hypot(), 5.0f, 1e-5f) && triangle.is_rectangular()
+                   && close_to(normal.length(), 1.0f, 1e-5f) && close_to(normal.z, -1.0f, 1e-5f)
+                   && close_to(mid_point.x, 1.0f, 1e-5f) && close_to(mid_point.y, 4.0f / 3.0f, 1e-5f)
+                   && close_to(mid_point.z, 0.0f, 1e-5f);
+        }(),
+        "Triangle helpers should be constexpr with gcem");
+#endif

tests/general/unit_test_vector2.cpp

@@ -2,10 +2,10 @@
 // Created by Vlad on 02.09.2024.
 //
 
-#include <omath/linear_algebra/vector2.hpp>
 #include <cfloat> // For FLT_MAX and FLT_MIN
 #include <cmath> // For std::isinf and std::isnan
 #include <gtest/gtest.h>
+#include <omath/linear_algebra/vector2.hpp>
 
 using namespace omath;
 
@@ -399,7 +399,6 @@ TEST_F(UnitTestVector2, GreaterEqualOperator)
     EXPECT_TRUE(omath::Vector2(1.f, 1.f) >= omath::Vector2<float>{});
 }
 
-
 // ── Cast operator tests ──────────────────────────────────────────────────────
 
 TEST(Vector2Cast, FloatToDouble)
@@ -463,3 +462,9 @@ static_assert(Vector2(1.0f, 2.0f).length_sqr() == 5.0f, "LengthSqr should be 5")
 static_assert(Vector2(1.0f, 2.0f).dot(Vector2(4.0f, 5.0f)) == 14.0f, "Dot product should be 14");
 static_assert(Vector2(4.0f, 5.0f).distance_to_sqr(Vector2(1.0f, 2.0f)) == 18.0f, "DistToSqr should be 18");
 static_assert(Vector2(-1.0f, -2.0f).abs() == Vector2(1.0f, 2.0f), "Abs should convert negative values to positive");
+
+#ifdef OMATH_USE_GCEM
+static_assert(Vector2(3.0f, 4.0f).length() == 5.0f, "Length should be constexpr with gcem");
+static_assert(Vector2(0.0f, 0.0f).distance_to(Vector2(3.0f, 4.0f)) == 5.0f, "Distance should be constexpr with gcem");
+static_assert(Vector2(1.0f, 1.0f) < Vector2(3.0f, 4.0f), "Comparison should be constexpr with gcem");
+#endif

tests/general/unit_test_vector3.cpp

@@ -2,11 +2,11 @@
 // Created by Vlad on 01.09.2024.
 //
 
-#include <omath/linear_algebra/vector3.hpp>
 #include <cfloat> // For FLT_MAX, FLT_MIN
 #include <cmath>
 #include <gtest/gtest.h>
 #include <limits> // For std::numeric_limits
+#include <omath/linear_algebra/vector3.hpp>
 
 using namespace omath;
 
@@ -31,35 +31,33 @@ TEST(Vector3More, ArithmeticAndDotCross)
     constexpr Vector3<float> a{1.f, 0.f, 0.f};
     constexpr Vector3<float> b{0.f, 1.f, 0.f};
     const auto c = a + b;
-    constexpr Vector3<float> expect_c{1.f,1.f,0.f};
+    constexpr Vector3<float> expect_c{1.f, 1.f, 0.f};
     EXPECT_EQ(c, expect_c);
 
     const auto d = a - b;
-    constexpr Vector3<float> expect_d{1.f,-1.f,0.f};
+    constexpr Vector3<float> expect_d{1.f, -1.f, 0.f};
     EXPECT_EQ(d, expect_d);
 
     const auto e = a * 2.f;
-    constexpr Vector3<float> expect_e{2.f,0.f,0.f};
+    constexpr Vector3<float> expect_e{2.f, 0.f, 0.f};
     EXPECT_EQ(e, expect_e);
 
     EXPECT_FLOAT_EQ(a.dot(b), 0.f);
     // manual cross product check
-    const auto cr = Vector3<float>{ a.y * b.z - a.z * b.y,
+    const auto cr = Vector3<float>{a.y * b.z - a.z * b.y, a.z * b.x - a.x * b.z, a.x * b.y - a.y * b.x};
-                              a.z * b.x - a.x * b.z,
+    constexpr Vector3<float> expect_cr{0.f, 0.f, 1.f};
-                              a.x * b.y - a.y * b.x };
-    constexpr Vector3<float> expect_cr{0.f,0.f,1.f};
     EXPECT_EQ(cr, expect_cr);
 }
 
 TEST(Vector3More, NormalizationEdgeCases)
 {
-    constexpr Vector3<double> z{0.0,0.0,0.0};
+    constexpr Vector3<double> z{0.0, 0.0, 0.0};
     const auto zn = z.normalized();
     EXPECT_DOUBLE_EQ(zn.x, 0.0);
     EXPECT_DOUBLE_EQ(zn.y, 0.0);
     EXPECT_DOUBLE_EQ(zn.z, 0.0);
 
-    constexpr Vector3<double> v{3.0,4.0,0.0};
+    constexpr Vector3<double> v{3.0, 4.0, 0.0};
     const auto vn = v.normalized();
     EXPECT_NEAR(vn.x, 0.6, 1e-12);
     EXPECT_NEAR(vn.y, 0.8, 1e-12);
@@ -481,16 +479,14 @@ TEST_F(UnitTestVector3, AsTuple)
 // Test AsTuple method
 TEST_F(UnitTestVector3, AngleBeatween)
 {
-    EXPECT_NEAR(Vector3(0.0f, 0.0f, 1.0f).angle_between({1, 0, 0}).value().as_degrees(),
+    EXPECT_NEAR(Vector3(0.0f, 0.0f, 1.0f).angle_between({1, 0, 0}).value().as_degrees(), 90.0f, 0.001f);
-                90.0f, 0.001f);
+    EXPECT_NEAR(Vector3(0.0f, 0.0f, 1.0f).angle_between({0.0f, 0.0f, 1.0f}).value().as_degrees(), 0.0f, 0.001f);
-    EXPECT_NEAR(Vector3(0.0f, 0.0f, 1.0f).angle_between({0.0f, 0.0f, 1.0f}).value().as_degrees(),
-                0.0f, 0.001f);
     EXPECT_FALSE(Vector3(0.0f, 0.0f, 0.0f).angle_between({0.0f, 0.0f, 1.0f}).has_value());
 }
 
 TEST_F(UnitTestVector3, IsPerpendicular)
 {
-    EXPECT_EQ(Vector3(0.0f, 0.0f, 1.0f).is_perpendicular({1, 0 ,0}), true);
+    EXPECT_EQ(Vector3(0.0f, 0.0f, 1.0f).is_perpendicular({1, 0, 0}), true);
     EXPECT_EQ(Vector3(0.0f, 0.0f, 1.0f).is_perpendicular({0.0f, 0.0f, 1.0f}), false);
     EXPECT_FALSE(Vector3(0.0f, 0.0f, 0.0f).is_perpendicular({0.0f, 0.0f, 1.0f}));
 }
@@ -585,4 +581,19 @@ TEST(Vector3Cast, SameTypeRoundtrip)
 static_assert(Vector3(1.0f, 2.0f, 3.0f).length_sqr() == 14.0f, "LengthSqr should be 14");
 static_assert(Vector3(1.0f, 2.0f, 3.0f).dot(Vector3(4.0f, 5.0f, 6.0f)) == 32.0f, "Dot product should be 32");
 static_assert(Vector3(4.0f, 5.0f, 6.0f).distance_to_sqr(Vector3(1.0f, 2.0f, 3.0f)) == 27.0f, "DistToSqr should be 27");
-static_assert(Vector3(-1.0f, -2.0f, -3.0f).abs() == Vector3(1.0f, 2.0f, 3.0f), "Abs should convert negative values to positive");
+static_assert(Vector3(-1.0f, -2.0f, -3.0f).abs() == Vector3(1.0f, 2.0f, 3.0f),
+              "Abs should convert negative values to positive");
+
+#ifdef OMATH_USE_GCEM
+static_assert(Vector3(1.0f, 2.0f, 2.0f).length() == 3.0f, "Length should be constexpr with gcem");
+static_assert(Vector3(0.0f, 0.0f, 0.0f).distance_to(Vector3(1.0f, 2.0f, 2.0f)) == 3.0f,
+              "Distance should be constexpr with gcem");
+static_assert(Vector3(1.0f, 1.0f, 1.0f) < Vector3(3.0f, 4.0f, 5.0f), "Comparison should be constexpr with gcem");
+static_assert(
+        []
+        {
+            constexpr auto angle = Vector3(1.0f, 0.0f, 0.0f).angle_between(Vector3(0.0f, 1.0f, 0.0f));
+            return angle.has_value() && angle->as_degrees() > 89.999f && angle->as_degrees() < 90.001f;
+        }(),
+        "Angle between should be constexpr with gcem");
+#endif

vcpkg.json

@@ -82,6 +82,13 @@
         "lua",
         "sol2"
       ]
+    },
+    "gcem":
+    {
+      "description": "Improve constexpr compatibility using gcem",
+      "dependencies": [
+        "gcem"
+      ]
     }
   }
 }