Added additional constraints to list instantiation

src/Matrix.hpp

@@ -3,6 +3,7 @@
 #include <array>
 #include <cstdint>
 #include <string>
+#include <type_traits>
 
 // TODO: Add a function to calculate eigenvalues/vectors
 // TODO: Add a function to compute RREF
@@ -29,9 +30,12 @@ public:
   Matrix(const Matrix<rows, columns> &other);
 
   /**
-   * @brief Initialize a matrix directly with any number of arguments
+   * @brief Initialize a matrix directly with scalar values
+   * Uses SFINAE to only accept arithmetic types (int, float, double, etc.)
    */
-  template <typename... Args> Matrix(Args... args);
+  template <typename... Args,
+            std::enable_if_t<(std::is_arithmetic_v<Args> && ...), int> = 0>
+  Matrix(Args... args);
 
   /**
    * @brief Create an identity matrix