matrix stream operators

src/Matrix.cpp

@@ -74,13 +74,7 @@ void Matrix::Save(const std::string& fileName) {
 		std::cerr << "Impossible de sauvegarder la matrice !\n";
 		return;
 	}
-	out << m_Lignes << " " << m_Colonnes << "\n";
-	for (std::size_t i = 0; i < m_Lignes; i++) {
-		for (std::size_t j = 0; j < m_Colonnes; j++) {
-			out << at(i, j) << " ";
-		}
-		out << "\n";
-	}
+	out << *this;
 }
 
 void Matrix::Load(const std::string& filename) {
@@ -89,13 +83,7 @@ void Matrix::Load(const std::string& filename) {
 		std::cerr << "Impossible de charger la matrice !\n";
 		return;
 	}
-	in >> m_Lignes >> m_Colonnes;
-	m_Data.resize(m_Lignes * m_Colonnes);
-	for (std::size_t i = 0; i < m_Lignes; i++) {
-		for (std::size_t j = 0; j < m_Colonnes; j++) {
-			in >> at(i, j);
-		}
-	}
+	in >> *this;
 }
 
 void Matrix::Transpose() {
@@ -267,3 +255,25 @@ Matrix Matrix::SubMatrix(std::size_t origine_ligne, std::size_t origine_colonne,
 
 	return result;
 }
+
+std::ostream& operator<<(std::ostream& stream, const Matrix& mat) {
+	stream << mat.m_Lignes << " " << mat.m_Colonnes << "\n";
+	for (std::size_t i = 0; i < mat.m_Lignes; i++) {
+		for (std::size_t j = 0; j < mat.m_Colonnes; j++) {
+			stream << mat.at(i, j) << " ";
+		}
+		stream << "\n";
+	}
+	return stream;
+}
+
+std::istream& operator>>(std::istream& stream, Matrix& mat) {
+	stream >> mat.m_Lignes >> mat.m_Colonnes;
+	mat.m_Data.resize(mat.m_Lignes * mat.m_Colonnes);
+	for (std::size_t i = 0; i < mat.m_Lignes; i++) {
+		for (std::size_t j = 0; j < mat.m_Colonnes; j++) {
+			stream >> mat.at(i, j);
+		}
+	}
+	return stream;
+}

src/Matrix.h

@@ -55,6 +55,9 @@ class Matrix {
 	long double& at(std::size_t ligne, std::size_t colonne);
 
 	long double at(std::size_t ligne, std::size_t colonne) const;
+
+	friend std::ostream& operator<<(std::ostream& stream, const Matrix& mat);
+	friend std::istream& operator>>(std::istream& stream, Matrix& mat);
 };
 
 template <typename T>