better fill

src/Matrix.cpp

@@ -71,11 +71,7 @@ Matrix Matrix::RawVector(std::initializer_list<Element>&& a_Elements) {
 }
 
 void Matrix::Fill(Element a_Element) {
-	for (std::size_t i = 0; i < m_Raws; i++) {
-		for (std::size_t j = 0; j < m_Columns; j++) {
-			at(i, j) = a_Element;
-		}
-	}
+	std::fill(GetLineIterator(0), GetLineIterator(m_Raws), a_Element);
 }
 
 void Matrix::Augment(const Matrix& a_Right) {