added const and constexpr refacotred build options

CMakeLists.txt

@@ -5,20 +5,26 @@ project(omath)
 
 set(CMAKE_CXX_STANDARD 26)
 
-option(BUILD_TESTS "Build unit tests" ON)
+option(OMATH_BUILD_TESTS "Build unit tests" ON)
-option(THREAT_WARNING_AS_ERROR "Set highest level of warnings and force compiler to threat them as errors" ON)
+option(OMATH_THREAT_WARNING_AS_ERROR "Set highest level of warnings and force compiler to threat them as errors" ON)
-add_library(omath STATIC source/Vector3.cpp)
+option(OMATH_BUILD_AS_SHARED_LIBRARY "Build Omath as .so\\.dll." OFF)
+
+if (OMATH_BUILD_AS_SHARED_LIBRARY)
+    add_library(omath SHARED source/Vector3.cpp)
+else()
+    add_library(omath STATIC source/Vector3.cpp)
+endif()
 
 add_subdirectory(source)
 add_subdirectory(extlibs)
 
-if(BUILD_TESTS)
+if(OMATH_BUILD_TESTS)
     add_subdirectory(tests)
 endif ()
 
-if (WIN32 AND THREAT_WARNING_AS_ERROR)
+if (WIN32 AND OMATH_THREAT_WARNING_AS_ERROR)
     target_compile_options(omath PRIVATE /W4 /WX)
-elseif(UNIX AND THREAT_WARNING_AS_ERROR)
+elseif(UNIX AND OMATH_THREAT_WARNING_AS_ERROR)
     target_compile_options(omath PRIVATE -Wall -Wextra -Wpedantic)
 endif()
 

include/omath/Vector3.h

@@ -146,7 +146,7 @@ namespace omath
             return {x * v.x, y * v.y, z * v.z};
         }
 
-        [[nodiscard]] constexpr Vector3 operator/(float fl) const
+        [[nodiscard]] constexpr Vector3 operator/(const float fl) const
         {
             return {x / fl, y / fl, z / fl};
         }

tests/UnitTestMatrix.cpp

@@ -24,7 +24,7 @@ protected:
 // Test constructors
 TEST_F(UnitTestMatrix, Constructor_Size)
 {
-    Matrix m(3, 3);
+    const Matrix m(3, 3);
     EXPECT_EQ(m.RowCount(), 3);
     EXPECT_EQ(m.ColumnsCount(), 3);
 }
@@ -90,19 +90,19 @@ TEST_F(UnitTestMatrix, Transpose)
 
 TEST_F(UnitTestMatrix, Determinant)
 {
-    float det = m2.Determinant();
+    const float det = m2.Determinant();
     EXPECT_FLOAT_EQ(det, -2.0f);
 }
 
 TEST_F(UnitTestMatrix, Minor)
 {
-    float minor = m2.Minor(0, 0);
+    const float minor = m2.Minor(0, 0);
     EXPECT_FLOAT_EQ(minor, 4.0f);
 }
 
 TEST_F(UnitTestMatrix, AlgComplement)
 {
-    float algComp = m2.AlgComplement(0, 0);
+    const float algComp = m2.AlgComplement(0, 0);
     EXPECT_FLOAT_EQ(algComp, 4.0f);
 }
 
@@ -116,7 +116,7 @@ TEST_F(UnitTestMatrix, Strip)
 
 TEST_F(UnitTestMatrix, ProjectionMatrix)
 {
-    Matrix proj = Matrix::ProjectionMatrix(45.0f, 1.33f, 0.1f, 100.0f);
+    const Matrix proj = Matrix::ProjectionMatrix(45.0f, 1.33f, 0.1f, 100.0f);
     EXPECT_EQ(proj.RowCount(), 4);
     EXPECT_EQ(proj.ColumnsCount(), 4);
     // Further checks on projection matrix elements could be added
@@ -132,7 +132,7 @@ TEST_F(UnitTestMatrix, Set)
 
 TEST_F(UnitTestMatrix, Sum)
 {
-    float sum = m2.Sum();
+    const float sum = m2.Sum();
     EXPECT_FLOAT_EQ(sum, 10.0f);
 }
 
@@ -145,7 +145,7 @@ TEST_F(UnitTestMatrix, Clear)
 
 TEST_F(UnitTestMatrix, ToString)
 {
-    std::string str = m2.ToSrtring();
+    const std::string str = m2.ToSrtring();
     EXPECT_FALSE(str.empty());
 }
 

tests/UnitTestVector2.cpp

@@ -198,14 +198,14 @@ TEST_F(UnitTestVector2, Length)
 
 TEST_F(UnitTestVector2, Length_ZeroVector)
 {
-    Vector2 v_zero(0.0f, 0.0f);
+    constexpr Vector2 v_zero(0.0f, 0.0f);
     const float length = v_zero.Length();
     EXPECT_FLOAT_EQ(length, 0.0f);
 }
 
 TEST_F(UnitTestVector2, Length_LargeValues)
 {
-    Vector2 v_large(FLT_MAX, FLT_MAX);
+    constexpr Vector2 v_large(FLT_MAX, FLT_MAX);
     const float length = v_large.Length();
     EXPECT_TRUE(std::isinf(length));
 }
@@ -261,8 +261,8 @@ TEST_F(UnitTestVector2, Normalized)
 
 TEST_F(UnitTestVector2, Normalized_ZeroVector)
 {
-    Vector2 v_zero(0.0f, 0.0f);
+    constexpr Vector2 v_zero(0.0f, 0.0f);
-    Vector2 v_norm = v_zero.Normalized();
+    const Vector2 v_norm = v_zero.Normalized();
     EXPECT_FLOAT_EQ(v_norm.x, 0.0f);
     EXPECT_FLOAT_EQ(v_norm.y, 0.0f);
 }
@@ -270,7 +270,7 @@ TEST_F(UnitTestVector2, Normalized_ZeroVector)
 // Test AsTuple method
 TEST_F(UnitTestVector2, AsTuple)
 {
-    auto tuple = v1.AsTuple();
+    const auto tuple = v1.AsTuple();
     EXPECT_FLOAT_EQ(std::get<0>(tuple), v1.x);
     EXPECT_FLOAT_EQ(std::get<1>(tuple), v1.y);
 }
@@ -278,9 +278,9 @@ TEST_F(UnitTestVector2, AsTuple)
 // Test division by zero
 TEST_F(UnitTestVector2, DivisionOperator_DivideByZero)
 {
-    Vector2 v(1.0f, 2.0f);
+    constexpr Vector2 v(1.0f, 2.0f);
-    float zero = 0.0f;
+    constexpr float zero = 0.0f;
-    Vector2 result = v / zero;
+    const Vector2 result = v / zero;
     EXPECT_TRUE(std::isinf(result.x) || std::isnan(result.x));
     EXPECT_TRUE(std::isinf(result.y) || std::isnan(result.y));
 }
@@ -288,7 +288,7 @@ TEST_F(UnitTestVector2, DivisionOperator_DivideByZero)
 TEST_F(UnitTestVector2, DivisionAssignmentOperator_DivideByZero)
 {
     Vector2 v(1.0f, 2.0f);
-    float zero = 0.0f;
+    constexpr float zero = 0.0f;
     v /= zero;
     EXPECT_TRUE(std::isinf(v.x) || std::isnan(v.x));
     EXPECT_TRUE(std::isinf(v.y) || std::isnan(v.y));
@@ -297,7 +297,7 @@ TEST_F(UnitTestVector2, DivisionAssignmentOperator_DivideByZero)
 TEST_F(UnitTestVector2, DivisionAssignmentOperator_VectorWithZero)
 {
     Vector2 v(1.0f, 2.0f);
-    Vector2 v_zero(0.0f, 1.0f);
+    constexpr Vector2 v_zero(0.0f, 1.0f);
     v /= v_zero;
     EXPECT_TRUE(std::isinf(v.x) || std::isnan(v.x));
     EXPECT_FLOAT_EQ(v.y, 2.0f / 1.0f);
@@ -306,16 +306,16 @@ TEST_F(UnitTestVector2, DivisionAssignmentOperator_VectorWithZero)
 // Test operations with infinity and NaN
 TEST_F(UnitTestVector2, Operator_WithInfinity)
 {
-    Vector2 v_inf(INFINITY, INFINITY);
+    constexpr Vector2 v_inf(INFINITY, INFINITY);
-    Vector2 result = v1 + v_inf;
+    const Vector2 result = v1 + v_inf;
     EXPECT_TRUE(std::isinf(result.x));
     EXPECT_TRUE(std::isinf(result.y));
 }
 
 TEST_F(UnitTestVector2, Operator_WithNaN)
 {
-    Vector2 v_nan(NAN, NAN);
+    constexpr Vector2 v_nan(NAN, NAN);
-    Vector2 result = v1 + v_nan;
+    const Vector2 result = v1 + v_nan;
     EXPECT_TRUE(std::isnan(result.x));
     EXPECT_TRUE(std::isnan(result.y));
 }
@@ -323,16 +323,16 @@ TEST_F(UnitTestVector2, Operator_WithNaN)
 // Test negative values in arithmetic operations
 TEST_F(UnitTestVector2, AdditionOperator_NegativeValues)
 {
-    Vector2 v_neg(-1.0f, -2.0f);
+    constexpr Vector2 v_neg(-1.0f, -2.0f);
-    Vector2 result = v1 + v_neg;
+    const Vector2 result = v1 + v_neg;
     EXPECT_FLOAT_EQ(result.x, 0.0f);
     EXPECT_FLOAT_EQ(result.y, 0.0f);
 }
 
 TEST_F(UnitTestVector2, SubtractionOperator_NegativeValues)
 {
-    Vector2 v_neg(-1.0f, -2.0f);
+    constexpr Vector2 v_neg(-1.0f, -2.0f);
-    Vector2 result = v1 - v_neg;
+    const Vector2 result = v1 - v_neg;
     EXPECT_FLOAT_EQ(result.x, 2.0f);
     EXPECT_FLOAT_EQ(result.y, 4.0f);
 }
@@ -340,8 +340,8 @@ TEST_F(UnitTestVector2, SubtractionOperator_NegativeValues)
 // Test negation of zero vector
 TEST_F(UnitTestVector2, NegationOperator_ZeroVector)
 {
-    Vector2 v_zero(0.0f, 0.0f);
+    constexpr Vector2 v_zero(0.0f, 0.0f);
-    Vector2 result = -v_zero;
+    constexpr Vector2 result = -v_zero;
     EXPECT_FLOAT_EQ(result.x, -0.0f);
     EXPECT_FLOAT_EQ(result.y, -0.0f);
 }

tests/UnitTestVector3.cpp

@@ -26,7 +26,7 @@ protected:
 // Test constructor and default values
 TEST_F(UnitTestVector3, Constructor_Default)
 {
-    Vector3 v;
+    constexpr Vector3 v;
     EXPECT_FLOAT_EQ(v.x, 0.0f);
     EXPECT_FLOAT_EQ(v.y, 0.0f);
     EXPECT_FLOAT_EQ(v.z, 0.0f);
@@ -34,7 +34,7 @@ TEST_F(UnitTestVector3, Constructor_Default)
 
 TEST_F(UnitTestVector3, Constructor_Values)
 {
-    Vector3 v(1.0f, 2.0f, 3.0f);
+    constexpr Vector3 v(1.0f, 2.0f, 3.0f);
     EXPECT_FLOAT_EQ(v.x, 1.0f);
     EXPECT_FLOAT_EQ(v.y, 2.0f);
     EXPECT_FLOAT_EQ(v.z, 3.0f);
@@ -43,14 +43,14 @@ TEST_F(UnitTestVector3, Constructor_Values)
 // Test equality operators
 TEST_F(UnitTestVector3, EqualityOperator)
 {
-    Vector3 v3(1.0f, 2.0f, 3.0f);
+    constexpr Vector3 v3(1.0f, 2.0f, 3.0f);
     EXPECT_TRUE(v1 == v3);
     EXPECT_FALSE(v1 == v2);
 }
 
 TEST_F(UnitTestVector3, InequalityOperator)
 {
-    Vector3 v3(1.0f, 2.0f, 3.0f);
+    constexpr Vector3 v3(1.0f, 2.0f, 3.0f);
     EXPECT_FALSE(v1 != v3);
     EXPECT_TRUE(v1 != v2);
 }
@@ -58,7 +58,7 @@ TEST_F(UnitTestVector3, InequalityOperator)
 // Test arithmetic operators
 TEST_F(UnitTestVector3, AdditionOperator)
 {
-    Vector3 v3 = Vector3(1.0f, 2.0f, 3.0f) + Vector3(4.0f, 5.0f, 6.0f);
+    constexpr Vector3 v3 = Vector3(1.0f, 2.0f, 3.0f) + Vector3(4.0f, 5.0f, 6.0f);
     EXPECT_FLOAT_EQ(v3.x, 5.0f);
     EXPECT_FLOAT_EQ(v3.y, 7.0f);
     EXPECT_FLOAT_EQ(v3.z, 9.0f);
@@ -66,7 +66,7 @@ TEST_F(UnitTestVector3, AdditionOperator)
 
 TEST_F(UnitTestVector3, SubtractionOperator)
 {
-    Vector3 v3 = Vector3(4.0f, 5.0f, 6.0f) - Vector3(1.0f, 2.0f, 3.0f);
+    constexpr Vector3 v3 = Vector3(4.0f, 5.0f, 6.0f) - Vector3(1.0f, 2.0f, 3.0f);
     EXPECT_FLOAT_EQ(v3.x, 3.0f);
     EXPECT_FLOAT_EQ(v3.y, 3.0f);
     EXPECT_FLOAT_EQ(v3.z, 3.0f);
@@ -74,7 +74,7 @@ TEST_F(UnitTestVector3, SubtractionOperator)
 
 TEST_F(UnitTestVector3, MultiplicationOperator_Scalar)
 {
-    Vector3 v3 = Vector3(1.0f, 2.0f, 3.0f) * 2.0f;
+    constexpr Vector3 v3 = Vector3(1.0f, 2.0f, 3.0f) * 2.0f;
     EXPECT_FLOAT_EQ(v3.x, 2.0f);
     EXPECT_FLOAT_EQ(v3.y, 4.0f);
     EXPECT_FLOAT_EQ(v3.z, 6.0f);
@@ -82,7 +82,7 @@ TEST_F(UnitTestVector3, MultiplicationOperator_Scalar)
 
 TEST_F(UnitTestVector3, MultiplicationOperator_Vector)
 {
-    Vector3 v3 = Vector3(1.0f, 2.0f, 3.0f) * Vector3(4.0f, 5.0f, 6.0f);
+    constexpr auto v3 = Vector3(1.0f, 2.0f, 3.0f) * Vector3(4.0f, 5.0f, 6.0f);
     EXPECT_FLOAT_EQ(v3.x, 4.0f);
     EXPECT_FLOAT_EQ(v3.y, 10.0f);
     EXPECT_FLOAT_EQ(v3.z, 18.0f);
@@ -90,7 +90,7 @@ TEST_F(UnitTestVector3, MultiplicationOperator_Vector)
 
 TEST_F(UnitTestVector3, DivisionOperator_Scalar)
 {
-    Vector3 v3 = Vector3(4.0f, 5.0f, 6.0f) / 2.0f;
+    constexpr auto v3 = Vector3(4.0f, 5.0f, 6.0f) / 2.0f;
     EXPECT_FLOAT_EQ(v3.x, 2.0f);
     EXPECT_FLOAT_EQ(v3.y, 2.5f);
     EXPECT_FLOAT_EQ(v3.z, 3.0f);
@@ -98,7 +98,7 @@ TEST_F(UnitTestVector3, DivisionOperator_Scalar)
 
 TEST_F(UnitTestVector3, DivisionOperator_Vector)
 {
-    Vector3 v3 = Vector3(4.0f, 5.0f, 6.0f) / Vector3(1.0f, 2.0f, 3.0f);
+    constexpr auto v3 = Vector3(4.0f, 5.0f, 6.0f) / Vector3(1.0f, 2.0f, 3.0f);
     EXPECT_FLOAT_EQ(v3.x, 4.0f);
     EXPECT_FLOAT_EQ(v3.y, 2.5f);
     EXPECT_FLOAT_EQ(v3.z, 2.0f);
@@ -155,7 +155,7 @@ TEST_F(UnitTestVector3, DivisionAssignmentOperator_Vector)
 
 TEST_F(UnitTestVector3, NegationOperator)
 {
-    Vector3 v3 = -Vector3(1.0f, 2.0f, 3.0f);
+    constexpr auto v3 = -Vector3(1.0f, 2.0f, 3.0f);
     EXPECT_FLOAT_EQ(v3.x, -1.0f);
     EXPECT_FLOAT_EQ(v3.y, -2.0f);
     EXPECT_FLOAT_EQ(v3.z, -3.0f);
@@ -164,25 +164,25 @@ TEST_F(UnitTestVector3, NegationOperator)
 // Test other member functions
 TEST_F(UnitTestVector3, DistToSqr)
 {
-    float distSqr = Vector3(1.0f, 2.0f, 3.0f).DistToSqr(Vector3(4.0f, 5.0f, 6.0f));
+    constexpr auto distSqr = Vector3(1.0f, 2.0f, 3.0f).DistToSqr(Vector3(4.0f, 5.0f, 6.0f));
     EXPECT_FLOAT_EQ(distSqr, 27.0f);
 }
 
 TEST_F(UnitTestVector3, DotProduct)
 {
-    float dot = Vector3(1.0f, 2.0f, 3.0f).Dot(Vector3(4.0f, 5.0f, 6.0f));
+    constexpr auto dot = Vector3(1.0f, 2.0f, 3.0f).Dot(Vector3(4.0f, 5.0f, 6.0f));
     EXPECT_FLOAT_EQ(dot, 32.0f);
 }
 
 TEST_F(UnitTestVector3, LengthSqr)
 {
-    float lengthSqr = Vector3(1.0f, 2.0f, 3.0f).LengthSqr();
+    constexpr auto lengthSqr = Vector3(1.0f, 2.0f, 3.0f).LengthSqr();
     EXPECT_FLOAT_EQ(lengthSqr, 14.0f);
 }
 
 TEST_F(UnitTestVector3, Abs)
 {
-    Vector3 v3 = Vector3(-1.0f, -2.0f, -3.0f);
+    auto v3 = Vector3(-1.0f, -2.0f, -3.0f);
     v3.Abs();
     EXPECT_FLOAT_EQ(v3.x, 1.0f);
     EXPECT_FLOAT_EQ(v3.y, 2.0f);
@@ -191,19 +191,19 @@ TEST_F(UnitTestVector3, Abs)
 
 TEST_F(UnitTestVector3, Sum)
 {
-    float sum = Vector3(1.0f, 2.0f, 3.0f).Sum();
+    constexpr auto sum = Vector3(1.0f, 2.0f, 3.0f).Sum();
     EXPECT_FLOAT_EQ(sum, 6.0f);
 }
 
 TEST_F(UnitTestVector3, Sum2D)
 {
-    float sum2D = Vector3(1.0f, 2.0f, 3.0f).Sum2D();
+    constexpr auto sum2D = Vector3(1.0f, 2.0f, 3.0f).Sum2D();
     EXPECT_FLOAT_EQ(sum2D, 3.0f);
 }
 
 TEST_F(UnitTestVector3, CrossProduct)
 {
-    Vector3 v3 = Vector3(1.0f, 2.0f, 3.0f).Cross(Vector3(4.0f, 5.0f, 6.0f));
+    constexpr Vector3 v3 = Vector3(1.0f, 2.0f, 3.0f).Cross(Vector3(4.0f, 5.0f, 6.0f));
     EXPECT_FLOAT_EQ(v3.x, -3.0f);
     EXPECT_FLOAT_EQ(v3.y, 6.0f);
     EXPECT_FLOAT_EQ(v3.z, -3.0f);
@@ -214,8 +214,8 @@ TEST_F(UnitTestVector3, CrossProduct)
 // Test operations with zero vectors
 TEST_F(UnitTestVector3, Addition_WithZeroVector)
 {
-    Vector3 v_zero(0.0f, 0.0f, 0.0f);
+    constexpr Vector3 v_zero(0.0f, 0.0f, 0.0f);
-    Vector3 result = v1 + v_zero;
+    const Vector3 result = v1 + v_zero;
     EXPECT_FLOAT_EQ(result.x, v1.x);
     EXPECT_FLOAT_EQ(result.y, v1.y);
     EXPECT_FLOAT_EQ(result.z, v1.z);
@@ -223,8 +223,8 @@ TEST_F(UnitTestVector3, Addition_WithZeroVector)
 
 TEST_F(UnitTestVector3, Subtraction_WithZeroVector)
 {
-    Vector3 v_zero(0.0f, 0.0f, 0.0f);
+    constexpr Vector3 v_zero(0.0f, 0.0f, 0.0f);
-    Vector3 result = v1 - v_zero;
+    const Vector3 result = v1 - v_zero;
     EXPECT_FLOAT_EQ(result.x, v1.x);
     EXPECT_FLOAT_EQ(result.y, v1.y);
     EXPECT_FLOAT_EQ(result.z, v1.z);
@@ -232,8 +232,8 @@ TEST_F(UnitTestVector3, Subtraction_WithZeroVector)
 
 TEST_F(UnitTestVector3, Multiplication_WithZeroVector)
 {
-    Vector3 v_zero(0.0f, 0.0f, 0.0f);
+    constexpr Vector3 v_zero(0.0f, 0.0f, 0.0f);
-    Vector3 result = v1 * v_zero;
+    const Vector3 result = v1 * v_zero;
     EXPECT_FLOAT_EQ(result.x, 0.0f);
     EXPECT_FLOAT_EQ(result.y, 0.0f);
     EXPECT_FLOAT_EQ(result.z, 0.0f);
@@ -241,8 +241,8 @@ TEST_F(UnitTestVector3, Multiplication_WithZeroVector)
 
 TEST_F(UnitTestVector3, Division_ByZeroVector)
 {
-    Vector3 v_zero(0.0f, 0.0f, 0.0f);
+    constexpr Vector3 v_zero(0.0f, 0.0f, 0.0f);
-    Vector3 result = v1 / v_zero;
+    const Vector3 result = v1 / v_zero;
     EXPECT_TRUE(std::isinf(result.x) || std::isnan(result.x));
     EXPECT_TRUE(std::isinf(result.y) || std::isnan(result.y));
     EXPECT_TRUE(std::isinf(result.z) || std::isnan(result.z));
@@ -250,8 +250,8 @@ TEST_F(UnitTestVector3, Division_ByZeroVector)
 
 TEST_F(UnitTestVector3, Division_ByZeroScalar)
 {
-    float zero = 0.0f;
+    constexpr float zero = 0.0f;
-    Vector3 result = v1 / zero;
+    const Vector3 result = v1 / zero;
     EXPECT_TRUE(std::isinf(result.x) || std::isnan(result.x));
     EXPECT_TRUE(std::isinf(result.y) || std::isnan(result.y));
     EXPECT_TRUE(std::isinf(result.z) || std::isnan(result.z));
@@ -260,8 +260,8 @@ TEST_F(UnitTestVector3, Division_ByZeroScalar)
 // Test operations with infinity
 TEST_F(UnitTestVector3, Addition_WithInfinity)
 {
-    Vector3 v_inf(INFINITY, INFINITY, INFINITY);
+    constexpr Vector3 v_inf(INFINITY, INFINITY, INFINITY);
-    Vector3 result = v1 + v_inf;
+    const Vector3 result = v1 + v_inf;
     EXPECT_TRUE(std::isinf(result.x));
     EXPECT_TRUE(std::isinf(result.y));
     EXPECT_TRUE(std::isinf(result.z));
@@ -269,8 +269,8 @@ TEST_F(UnitTestVector3, Addition_WithInfinity)
 
 TEST_F(UnitTestVector3, Subtraction_WithInfinity)
 {
-    Vector3 v_inf(INFINITY, INFINITY, INFINITY);
+    constexpr Vector3 v_inf(INFINITY, INFINITY, INFINITY);
-    Vector3 result = v1 - v_inf;
+    const Vector3 result = v1 - v_inf;
     EXPECT_TRUE(std::isinf(result.x));
     EXPECT_TRUE(std::isinf(result.y));
     EXPECT_TRUE(std::isinf(result.z));
@@ -279,8 +279,8 @@ TEST_F(UnitTestVector3, Subtraction_WithInfinity)
 // Test operations with NaN
 TEST_F(UnitTestVector3, Multiplication_WithNaN)
 {
-    Vector3 v_nan(NAN, NAN, NAN);
+    constexpr Vector3 v_nan(NAN, NAN, NAN);
-    Vector3 result = v1 * v_nan;
+    const Vector3 result = v1 * v_nan;
     EXPECT_TRUE(std::isnan(result.x));
     EXPECT_TRUE(std::isnan(result.y));
     EXPECT_TRUE(std::isnan(result.z));
@@ -288,8 +288,8 @@ TEST_F(UnitTestVector3, Multiplication_WithNaN)
 
 TEST_F(UnitTestVector3, Division_WithNaN)
 {
-    Vector3 v_nan(NAN, NAN, NAN);
+    constexpr Vector3 v_nan(NAN, NAN, NAN);
-    Vector3 result = v1 / v_nan;
+    const Vector3 result = v1 / v_nan;
     EXPECT_TRUE(std::isnan(result.x));
     EXPECT_TRUE(std::isnan(result.y));
     EXPECT_TRUE(std::isnan(result.z));
@@ -298,41 +298,41 @@ TEST_F(UnitTestVector3, Division_WithNaN)
 // Test Length, Length2D, and Normalized
 TEST_F(UnitTestVector3, Length)
 {
-    float length = v1.Length();
+    const float length = v1.Length();
     EXPECT_FLOAT_EQ(length, std::sqrt(14.0f));
 }
 
 TEST_F(UnitTestVector3, Length_ZeroVector)
 {
-    Vector3 v_zero(0.0f, 0.0f, 0.0f);
+    constexpr Vector3 v_zero(0.0f, 0.0f, 0.0f);
-    float length = v_zero.Length();
+    const float length = v_zero.Length();
     EXPECT_FLOAT_EQ(length, 0.0f);
 }
 
 TEST_F(UnitTestVector3, Length_LargeValues)
 {
-    Vector3 v_large(FLT_MAX, FLT_MAX, FLT_MAX);
+    constexpr Vector3 v_large(FLT_MAX, FLT_MAX, FLT_MAX);
-    float length = v_large.Length();
+    const float length = v_large.Length();
     EXPECT_TRUE(std::isinf(length));
 }
 
 TEST_F(UnitTestVector3, Length2D)
 {
-    float length2D = v1.Length2D();
+    const float length2D = v1.Length2D();
     EXPECT_FLOAT_EQ(length2D, std::sqrt(5.0f));
 }
 
 TEST_F(UnitTestVector3, Normalized)
 {
-    Vector3 v_norm = v1.Normalized();
+    const Vector3 v_norm = v1.Normalized();
-    float length = v_norm.Length();
+    const float length = v_norm.Length();
     EXPECT_NEAR(length, 1.0f, 0.0001f);
 }
 
 TEST_F(UnitTestVector3, Normalized_ZeroVector)
 {
-    Vector3 v_zero(0.0f, 0.0f, 0.0f);
+    constexpr Vector3 v_zero(0.0f, 0.0f, 0.0f);
-    Vector3 v_norm = v_zero.Normalized();
+    const Vector3 v_norm = v_zero.Normalized();
     EXPECT_FLOAT_EQ(v_norm.x, 0.0f);
     EXPECT_FLOAT_EQ(v_norm.y, 0.0f);
     EXPECT_FLOAT_EQ(v_norm.z, 0.0f);
@@ -341,9 +341,9 @@ TEST_F(UnitTestVector3, Normalized_ZeroVector)
 // Test Cross Product edge cases
 TEST_F(UnitTestVector3, CrossProduct_ParallelVectors)
 {
-    Vector3 v_a(1.0f, 2.0f, 3.0f);
+    constexpr Vector3 v_a(1.0f, 2.0f, 3.0f);
-    Vector3 v_b = v_a * 2.0f; // Parallel to v_a
+    constexpr Vector3 v_b = v_a * 2.0f; // Parallel to v_a
-    Vector3 cross = v_a.Cross(v_b);
+    constexpr Vector3 cross = v_a.Cross(v_b);
     EXPECT_FLOAT_EQ(cross.x, 0.0f);
     EXPECT_FLOAT_EQ(cross.y, 0.0f);
     EXPECT_FLOAT_EQ(cross.z, 0.0f);
@@ -351,9 +351,9 @@ TEST_F(UnitTestVector3, CrossProduct_ParallelVectors)
 
 TEST_F(UnitTestVector3, CrossProduct_OrthogonalVectors)
 {
-    Vector3 v_a(1.0f, 0.0f, 0.0f);
+    constexpr Vector3 v_a(1.0f, 0.0f, 0.0f);
-    Vector3 v_b(0.0f, 1.0f, 0.0f);
+    constexpr Vector3 v_b(0.0f, 1.0f, 0.0f);
-    Vector3 cross = v_a.Cross(v_b);
+    constexpr Vector3 cross = v_a.Cross(v_b);
     EXPECT_FLOAT_EQ(cross.x, 0.0f);
     EXPECT_FLOAT_EQ(cross.y, 0.0f);
     EXPECT_FLOAT_EQ(cross.z, 1.0f);
@@ -362,8 +362,8 @@ TEST_F(UnitTestVector3, CrossProduct_OrthogonalVectors)
 // Test negative values
 TEST_F(UnitTestVector3, Addition_NegativeValues)
 {
-    Vector3 v_neg(-1.0f, -2.0f, -3.0f);
+    constexpr Vector3 v_neg(-1.0f, -2.0f, -3.0f);
-    Vector3 result = v1 + v_neg;
+    const Vector3 result = v1 + v_neg;
     EXPECT_FLOAT_EQ(result.x, 0.0f);
     EXPECT_FLOAT_EQ(result.y, 0.0f);
     EXPECT_FLOAT_EQ(result.z, 0.0f);
@@ -371,8 +371,8 @@ TEST_F(UnitTestVector3, Addition_NegativeValues)
 
 TEST_F(UnitTestVector3, Subtraction_NegativeValues)
 {
-    Vector3 v_neg(-1.0f, -2.0f, -3.0f);
+    constexpr Vector3 v_neg(-1.0f, -2.0f, -3.0f);
-    Vector3 result = v1 - v_neg;
+    const Vector3 result = v1 - v_neg;
     EXPECT_FLOAT_EQ(result.x, 2.0f);
     EXPECT_FLOAT_EQ(result.y, 4.0f);
     EXPECT_FLOAT_EQ(result.z, 6.0f);
@@ -381,7 +381,7 @@ TEST_F(UnitTestVector3, Subtraction_NegativeValues)
 // Test AsTuple method
 TEST_F(UnitTestVector3, AsTuple)
 {
-    auto tuple = v1.AsTuple();
+    const auto tuple = v1.AsTuple();
     EXPECT_FLOAT_EQ(std::get<0>(tuple), v1.x);
     EXPECT_FLOAT_EQ(std::get<1>(tuple), v1.y);
     EXPECT_FLOAT_EQ(std::get<2>(tuple), v1.z);