GCC 4.5 compatibility: constexpr-related issues.

src/Math/Test/Vector2Test.cpp

@@ -216,7 +216,13 @@ void Vector2Test::aspectRatio() {
 
 void Vector2Test::swizzleType() {
     constexpr Vector<4, Int> orig;
-    constexpr auto a = swizzle<'y', 'a'>(orig);
+
+    #ifndef CORRADE_GCC45_COMPATIBILITY
+    constexpr
+    #else
+    const
+    #endif
+    auto a = swizzle<'y', 'a'>(orig);
     CORRADE_VERIFY((std::is_same<decltype(a), const Vector2i>::value));
 }
 

src/Math/Test/Vector3Test.cpp

@@ -236,7 +236,13 @@ void Vector3Test::twoComponent() {
 
 void Vector3Test::swizzleType() {
     constexpr Vector<4, Int> orig;
-    constexpr auto b = swizzle<'y', 'z', 'a'>(orig);
+
+    #ifndef CORRADE_GCC45_COMPATIBILITY
+    constexpr
+    #else
+    const
+    #endif
+    auto b = swizzle<'y', 'z', 'a'>(orig);
     CORRADE_VERIFY((std::is_same<decltype(b), const Vector3i>::value));
 }
 

src/Math/Test/Vector4Test.cpp

@@ -228,7 +228,13 @@ void Vector4Test::twoComponent() {
 
 void Vector4Test::swizzleType() {
     constexpr Vector4i orig;
-    constexpr auto c = swizzle<'y', 'a', 'y', 'x'>(orig);
+
+    #ifndef CORRADE_GCC45_COMPATIBILITY
+    constexpr
+    #else
+    const
+    #endif
+    auto c = swizzle<'y', 'a', 'y', 'x'>(orig);
     CORRADE_VERIFY((std::is_same<decltype(c), const Vector4i>::value));
 }
 

src/Test/ColorTest.cpp

@@ -143,16 +143,36 @@ void ColorTest::swizzleType() {
     constexpr Color3 origColor3;
     constexpr BasicColor4<UnsignedByte> origColor4;
 
-    constexpr auto a = Math::swizzle<'y', 'z', 'r'>(origColor3);
+    #ifndef CORRADE_GCC45_COMPATIBILITY
+    constexpr
+    #else
+    const
+    #endif
+    auto a = Math::swizzle<'y', 'z', 'r'>(origColor3);
     CORRADE_VERIFY((std::is_same<decltype(a), const Color3>::value));
 
-    constexpr auto b = Math::swizzle<'y', 'z', 'a'>(origColor4);
+    #ifndef CORRADE_GCC45_COMPATIBILITY
+    constexpr
+    #else
+    const
+    #endif
+    auto b = Math::swizzle<'y', 'z', 'a'>(origColor4);
     CORRADE_VERIFY((std::is_same<decltype(b), const BasicColor3<UnsignedByte>>::value));
 
-    constexpr auto c = Math::swizzle<'y', 'z', 'y', 'x'>(origColor3);
+    #ifndef CORRADE_GCC45_COMPATIBILITY
+    constexpr
+    #else
+    const
+    #endif
+    auto c = Math::swizzle<'y', 'z', 'y', 'x'>(origColor3);
     CORRADE_VERIFY((std::is_same<decltype(c), const Color4>::value));
 
-    constexpr auto d = Math::swizzle<'y', 'a', 'y', 'x'>(origColor4);
+    #ifndef CORRADE_GCC45_COMPATIBILITY
+    constexpr
+    #else
+    const
+    #endif
+    auto d = Math::swizzle<'y', 'a', 'y', 'x'>(origColor4);
     CORRADE_VERIFY((std::is_same<decltype(d), const BasicColor4<UnsignedByte>>::value));
 }