Alignof is a C++11 feature

glm/detail/setup.hpp

@@ -424,6 +424,19 @@
 		((GLM_COMPILER & GLM_COMPILER_CUDA) && (GLM_COMPILER >= GLM_COMPILER_CUDA50))))
 #endif
 
+// N2341 http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2341.pdf
+#if GLM_COMPILER & GLM_COMPILER_CLANG
+#	define GLM_HAS_ALIGNOF __has_feature(c_alignof)
+#elif GLM_LANG & GLM_LANG_CXX11_FLAG
+#	define GLM_HAS_ALIGNOF 1
+#else
+#	define GLM_HAS_ALIGNOF ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
+		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC48)) || \
+		((GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL15)) || \
+		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2015)) || \
+		((GLM_COMPILER & GLM_COMPILER_CUDA) && (GLM_COMPILER >= GLM_COMPILER_CUDA70))))
+#endif
+
 //
 #if GLM_LANG & GLM_LANG_CXX11_FLAG
 #	define GLM_HAS_ASSIGNABLE 1

test/core/core_type_aligned.cpp

@@ -6,39 +6,38 @@ int test_aligned()
 
 	size_t size1_aligned = sizeof(glm::detail::storage<int, 1, true>::type);
 	Error += size1_aligned == 1 ? 0 : 1;
-	size_t align1_aligned = alignof(glm::detail::storage<int, 1, true>::type);
-	Error += align1_aligned == 1 ? 0 : 1;
-
 	size_t size2_aligned = sizeof(glm::detail::storage<int, 2, true>::type);
 	Error += size2_aligned == 2 ? 0 : 1;
-	size_t align2_aligned = alignof(glm::detail::storage<int, 2, true>::type);
-	Error += align2_aligned == 2 ? 0 : 1;
-
 	size_t size4_aligned = sizeof(glm::detail::storage<int, 4, true>::type);
 	Error += size4_aligned == 4 ? 0 : 1;
-	size_t align4_aligned = alignof(glm::detail::storage<int, 4, true>::type);
-	Error += align4_aligned == 4 ? 0 : 1;
-
 	size_t size8_aligned = sizeof(glm::detail::storage<int, 8, true>::type);
 	Error += size8_aligned == 8 ? 0 : 1;
-	size_t align8_aligned = alignof(glm::detail::storage<int, 8, true>::type);
-	Error += align8_aligned == 8 ? 0 : 1;
-
 	size_t size16_aligned = sizeof(glm::detail::storage<int, 16, true>::type);
 	Error += size16_aligned == 16 ? 0 : 1;
-	size_t align16_aligned = alignof(glm::detail::storage<int, 16, true>::type);
-	Error += align16_aligned == 16 ? 0 : 1;
-
 	size_t size32_aligned = sizeof(glm::detail::storage<int, 32, true>::type);
 	Error += size32_aligned == 32 ? 0 : 1;
-	size_t align32_aligned = alignof(glm::detail::storage<int, 32, true>::type);
-	Error += align32_aligned == 32 ? 0 : 1;
-
 	size_t size64_aligned = sizeof(glm::detail::storage<int, 64, true>::type);
 	Error += size64_aligned == 64 ? 0 : 1;
+
+#	if GLM_HAS_ALIGNOF
+
+	size_t align1_aligned = alignof(glm::detail::storage<int, 1, true>::type);
+	Error += align1_aligned == 1 ? 0 : 1;
+	size_t align2_aligned = alignof(glm::detail::storage<int, 2, true>::type);
+	Error += align2_aligned == 2 ? 0 : 1;
+	size_t align4_aligned = alignof(glm::detail::storage<int, 4, true>::type);
+	Error += align4_aligned == 4 ? 0 : 1;
+	size_t align8_aligned = alignof(glm::detail::storage<int, 8, true>::type);
+	Error += align8_aligned == 8 ? 0 : 1;
+	size_t align16_aligned = alignof(glm::detail::storage<int, 16, true>::type);
+	Error += align16_aligned == 16 ? 0 : 1;
+	size_t align32_aligned = alignof(glm::detail::storage<int, 32, true>::type);
+	Error += align32_aligned == 32 ? 0 : 1;
 	size_t align64_aligned = alignof(glm::detail::storage<int, 64, true>::type);
 	Error += align64_aligned == 64 ? 0 : 1;
 
+#	endif //GLM_HAS_ALIGNOF
+
 	return Error;
 }
 
@@ -48,39 +47,38 @@ int test_unaligned()
 
 	size_t size1_unaligned = sizeof(glm::detail::storage<int, 1, false>::type);
 	Error += size1_unaligned == 1 ? 0 : 1;
-	size_t align1_unaligned = alignof(glm::detail::storage<int, 1, false>::type);
-	Error += align1_unaligned == 1 ? 0 : 1;
-
 	size_t size2_unaligned = sizeof(glm::detail::storage<int, 2, false>::type);
 	Error += size2_unaligned == 2 ? 0 : 1;
-	size_t align2_unaligned = alignof(glm::detail::storage<int, 2, false>::type);
-	Error += align2_unaligned == 1 ? 0 : 1;
-
 	size_t size4_unaligned = sizeof(glm::detail::storage<int, 4, false>::type);
 	Error += size4_unaligned == 4 ? 0 : 1;
-	size_t align4_unaligned = alignof(glm::detail::storage<int, 4, false>::type);
-	Error += align4_unaligned == 1 ? 0 : 1;
-
 	size_t size8_unaligned = sizeof(glm::detail::storage<int, 8, false>::type);
 	Error += size8_unaligned == 8 ? 0 : 1;
-	size_t align8_unaligned = alignof(glm::detail::storage<int, 8, false>::type);
-	Error += align8_unaligned == 1 ? 0 : 1;
-
 	size_t size16_unaligned = sizeof(glm::detail::storage<int, 16, false>::type);
 	Error += size16_unaligned == 16 ? 0 : 1;
-	size_t align16_unaligned = alignof(glm::detail::storage<int, 16, false>::type);
-	Error += align16_unaligned == 1 ? 0 : 1;
-
 	size_t size32_unaligned = sizeof(glm::detail::storage<int, 32, false>::type);
 	Error += size32_unaligned == 32 ? 0 : 1;
-	size_t align32_unaligned = alignof(glm::detail::storage<int, 32, false>::type);
-	Error += align32_unaligned == 1 ? 0 : 1;
-
 	size_t size64_unaligned = sizeof(glm::detail::storage<int, 64, false>::type);
 	Error += size64_unaligned == 64 ? 0 : 1;
+
+#	if GLM_HAS_ALIGNOF
+
+	size_t align1_unaligned = alignof(glm::detail::storage<int, 1, false>::type);
+	Error += align1_unaligned == 1 ? 0 : 1;
+	size_t align2_unaligned = alignof(glm::detail::storage<int, 2, false>::type);
+	Error += align2_unaligned == 1 ? 0 : 1;
+	size_t align4_unaligned = alignof(glm::detail::storage<int, 4, false>::type);
+	Error += align4_unaligned == 1 ? 0 : 1;
+	size_t align8_unaligned = alignof(glm::detail::storage<int, 8, false>::type);
+	Error += align8_unaligned == 1 ? 0 : 1;
+	size_t align16_unaligned = alignof(glm::detail::storage<int, 16, false>::type);
+	Error += align16_unaligned == 1 ? 0 : 1;
+	size_t align32_unaligned = alignof(glm::detail::storage<int, 32, false>::type);
+	Error += align32_unaligned == 1 ? 0 : 1;
 	size_t align64_unaligned = alignof(glm::detail::storage<int, 64, false>::type);
 	Error += align64_unaligned == 1 ? 0 : 1;
 
+#	endif //GLM_HAS_ALIGNOF
+
 	return Error;
 }