From 5bbe3df0ef7fcce80a1ad9b9a583a4ea39c87384 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Wed, 3 Jul 2013 19:27:31 +0200
Subject: [PATCH] Math: use both const and constexpr.

Spotted by Clang.
---
 src/Math/Matrix.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Math/Matrix.h b/src/Math/Matrix.h
index e5db427ea..badd940a4 100644
--- a/src/Math/Matrix.h
+++ b/src/Math/Matrix.h
@@ -254,14 +254,14 @@ template<std::size_t size, class T> T MatrixDeterminant<size, T>::operator()(con
 
 template<class T> class MatrixDeterminant<2, T> {
     public:
-        constexpr T operator()(const Matrix<2, T>& m) {
+        constexpr T operator()(const Matrix<2, T>& m) const {
             return m[0][0]*m[1][1] - m[1][0]*m[0][1];
         }
 };
 
 template<class T> class MatrixDeterminant<1, T> {
     public:
-        constexpr T operator()(const Matrix<1, T>& m) {
+        constexpr T operator()(const Matrix<1, T>& m) const {
             return m[0][0];
         }
 };