Complete refactor

src/math/matrix/cpu/matrix.cpp

@@ -0,0 +1,24 @@
+#include "matrix.hpp"
+
+Matrices::CPU::CPU(int rows, int cols, float value)
+    : IMatrix(rows, cols), data(rows * cols, value) {
+  validateDimensions(rows, cols);
+}
+
+Matrices::CPU::CPU(int rows, int cols, const std::vector<float> &matrix)
+    : IMatrix(rows, cols), data(matrix) {
+  validateDimensions(rows, cols);
+  if (matrix.size() != static_cast<size_t>(rows * cols)) {
+    throw std::invalid_argument("Data size doesn't match matrix dimensions");
+  }
+}
+
+float &Matrices::CPU::operator()(int row, int col) {
+  checkIndices(row, col);
+  return data[row * cols + col];
+}
+
+const float &Matrices::CPU::operator()(int row, int col) const {
+  checkIndices(row, col);
+  return data[row * cols + col];
+}