From 2d38387da92909613b4cf0ecd63c1c8c8ea6f5b0 Mon Sep 17 00:00:00 2001
From: Orange <orange-cpp@yandex.ru>
Date: Fri, 12 Jun 2026 01:05:14 +0300
Subject: [PATCH] fix

---
 include/omath/linear_algebra/mat.hpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/include/omath/linear_algebra/mat.hpp b/include/omath/linear_algebra/mat.hpp
index fce2acb..f0f8bb4 100644
--- a/include/omath/linear_algebra/mat.hpp
+++ b/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)