Cleaned up C++11 feature detections

glm/detail/setup.hpp

@@ -496,113 +496,159 @@
 ///////////////////////////////////////////////////////////////////////////////////
 // Has of C++ features
 
-#ifndef __has_include
-#	define __has_include(x) 0  // Compatibility with non-clang compilers.
-#endif
-#ifndef __has_feature
-#	define __has_feature(x) 0  // Compatibility with non-clang compilers.
-#endif
-#ifndef __has_extension
-#	define __has_extension __has_feature // Compatibility with pre-3.0 compilers.
-#endif
-
 // http://clang.llvm.org/cxx_status.html
 // http://gcc.gnu.org/projects/cxx0x.html
 // http://msdn.microsoft.com/en-us/library/vstudio/hh567368(v=vs.120).aspx
 
-// N1720
-#define GLM_HAS_CXX11_STL !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ((GLM_PLATFORM != GLM_PLATFORM_ANDROID) && (\
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC48)) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013)) || \
-	__has_include(<__config>)))
+#if GLM_PLATFORM != GLM_PLATFORM_ANDROID
+#	define GLM_HAS_CXX11_STL 0
+#elif GLM_COMPILER & (GLM_COMPILER_LLVM | GLM_COMPILER_APPLE_CLANG)
+#	define GLM_HAS_CXX11_STL __has_include(<__config>)
+#else
+#	define GLM_HAS_CXX11_STL ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && \
+		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC48)) || \
+		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013)))
+#endif
 
 // N1720
-#define GLM_HAS_STATIC_ASSERT !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	(GLM_LANG & GLM_LANG_CXX11_FLAG) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2010)) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC43)) || \
-	__has_feature(cxx_static_assert))
+#if GLM_COMPILER & (GLM_COMPILER_LLVM | GLM_COMPILER_APPLE_CLANG)
+#	define GLM_HAS_STATIC_ASSERT __has_feature(cxx_static_assert)
+#elif GLM_LANG & GLM_LANG_CXX11_FLAG
+#	define GLM_HAS_STATIC_ASSERT 1
+#else
+#	define GLM_HAS_STATIC_ASSERT (GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
+		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC43)) || \
+		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2010)))
+#endif
 
 // N1988
-#define GLM_HAS_EXTENDED_INTEGER_TYPE !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	(GLM_LANG & GLM_LANG_CXX11_FLAG) || \
+#if GLM_LANG & GLM_LANG_CXX11_FLAG
+#	define GLM_HAS_EXTENDED_INTEGER_TYPE 1
+#else
+#	define GLM_HAS_EXTENDED_INTEGER_TYPE (\
 		((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2012)) || \
 		((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC43)) || \
 		((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_LLVM) && (GLM_COMPILER >= GLM_COMPILER_LLVM30)) || \
 		((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_APPLE_CLANG) && (GLM_COMPILER >= GLM_COMPILER_APPLE_CLANG40)))
+#endif
 
 // N2235
-#define GLM_HAS_CONSTEXPR !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	(GLM_LANG & GLM_LANG_CXX11_FLAG) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC46)) || \
-	__has_feature(cxx_constexpr))
+#if GLM_COMPILER & (GLM_COMPILER_LLVM | GLM_COMPILER_APPLE_CLANG)
+#	define GLM_HAS_CONSTEXPR __has_feature(cxx_constexpr)
+#elif GLM_LANG & GLM_LANG_CXX11_FLAG
+#	define GLM_HAS_CONSTEXPR 1
+#else
+#	define GLM_HAS_CONSTEXPR (GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
+		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC46)) || \
+		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2015)))
+#endif
 
 // N2672
-#define GLM_HAS_INITIALIZER_LISTS !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	(GLM_LANG & GLM_LANG_CXX11_FLAG) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && ((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013))) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC44)) || \
-	__has_feature(cxx_generalized_initializers))
+#if GLM_COMPILER & (GLM_COMPILER_LLVM | GLM_COMPILER_APPLE_CLANG)
+#	define GLM_HAS_INITIALIZER_LISTS __has_feature(cxx_generalized_initializers)
+#elif GLM_LANG & GLM_LANG_CXX11_FLAG
+#	define GLM_HAS_INITIALIZER_LISTS 1
+#else
+#	define GLM_HAS_INITIALIZER_LISTS (GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
+		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC44)) || \
+		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013)))
+#endif
 
 // N2544 Unrestricted unions
-#define GLM_HAS_UNRESTRICTED_UNIONS !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	(GLM_LANG & GLM_LANG_CXX11_FLAG) || \
-	(GLM_LANG & GLM_LANG_CXXMS_FLAG) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC46)) || \
-	__has_feature(cxx_unrestricted_unions))
+#if GLM_COMPILER & (GLM_COMPILER_LLVM | GLM_COMPILER_APPLE_CLANG)
+#	define GLM_HAS_UNRESTRICTED_UNIONS __has_feature(cxx_unrestricted_unions)
+#elif GLM_LANG & (GLM_LANG_CXX11_FLAG | GLM_LANG_CXXMS_FLAG)
+#	define GLM_HAS_UNRESTRICTED_UNIONS 1
+#else
+#	define GLM_HAS_UNRESTRICTED_UNIONS (GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
+		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC46)))
+#endif
 
 // N2346
-#define GLM_HAS_DEFAULTED_FUNCTIONS !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	(GLM_LANG & GLM_LANG_CXX11_FLAG) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013)) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC44)) || \
-	__has_feature(cxx_defaulted_functions))
+#if GLM_COMPILER & (GLM_COMPILER_LLVM | GLM_COMPILER_APPLE_CLANG)
+#	define GLM_HAS_DEFAULTED_FUNCTIONS __has_feature(cxx_defaulted_functions)
+#elif GLM_LANG & GLM_LANG_CXX11_FLAG
+#	define GLM_HAS_DEFAULTED_FUNCTIONS 1
+#else
+#	define GLM_HAS_DEFAULTED_FUNCTIONS (GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
+		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC44)) || \
+		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013)))
+#endif
 
 // N2118
-#define GLM_HAS_RVALUE_REFERENCES !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	(GLM_LANG & GLM_LANG_CXX11_FLAG) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2012)) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC43)) || \
-	__has_feature(cxx_rvalue_references))
-
-// N2437
-#define GLM_HAS_EXPLICIT_CONVERSION_OPERATORS !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	(GLM_LANG & GLM_LANG_CXX11_FLAG) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013)) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL14)) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC45)) || \
-	__has_feature(cxx_explicit_conversions))
-
-#define GLM_HAS_STL_ARRAY !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	(GLM_LANG & GLM_LANG_CXX11_FLAG) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2010)) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC43)))
-
-#define GLM_HAS_TEMPLATE_ALIASES !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && ((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013))) || \
-	__has_feature(cxx_alias_templates))
-
-#define GLM_HAS_RANGE_FOR !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	(GLM_LANG & GLM_LANG_CXX11_FLAG) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2012)) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC46)) || \
-	__has_feature(cxx_range_for))
+#if GLM_COMPILER & (GLM_COMPILER_LLVM | GLM_COMPILER_APPLE_CLANG)
+#	define GLM_HAS_RVALUE_REFERENCES __has_feature(cxx_rvalue_references)
+#elif GLM_LANG & GLM_LANG_CXX11_FLAG
+#	define GLM_HAS_RVALUE_REFERENCES 1
+#else
+#	define GLM_HAS_RVALUE_REFERENCES (GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
+		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC43)) || \
+		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2012)))
+#endif
+
+// N2437 http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2437.pdf
+#if GLM_COMPILER & (GLM_COMPILER_LLVM | GLM_COMPILER_APPLE_CLANG)
+#	define GLM_HAS_EXPLICIT_CONVERSION_OPERATORS __has_feature(cxx_explicit_conversions)
+#elif GLM_LANG & GLM_LANG_CXX11_FLAG
+#	define GLM_HAS_EXPLICIT_CONVERSION_OPERATORS 1
+#else
+#	define GLM_HAS_EXPLICIT_CONVERSION_OPERATORS (GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
+		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC45)) || \
+		((GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL14)) || \
+		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013)))
+#endif
+
+// N2258 http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2258.pdf
+#if GLM_COMPILER & (GLM_COMPILER_LLVM | GLM_COMPILER_APPLE_CLANG)
+#	define GLM_HAS_TEMPLATE_ALIASES __has_feature(cxx_alias_templates)
+#elif GLM_LANG & GLM_LANG_CXX11_FLAG
+#	define GLM_HAS_TEMPLATE_ALIASES 1
+#else
+#	define GLM_HAS_TEMPLATE_ALIASES (GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
+		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC47)) || \
+		((GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL12_1)) || \
+		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013)))
+#endif
 
-#define GLM_HAS_ASSIGNABLE !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	(GLM_LANG & GLM_LANG_CXX11_FLAG) || \
-	((GLM_LANG & GLM_LANG_CXX0X_FLAG) && (GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC49)))
+// N2930 http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2930.html
+#if GLM_COMPILER & (GLM_COMPILER_LLVM | GLM_COMPILER_APPLE_CLANG)
+#	define GLM_HAS_RANGE_FOR __has_feature(cxx_range_for)
+#elif GLM_LANG & GLM_LANG_CXX11_FLAG
+#	define GLM_HAS_RANGE_FOR 1
+#else
+#	define GLM_HAS_RANGE_FOR (GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
+		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC46)) || \
+		((GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL13)) || \
+		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2012)))
+#endif
 
-#define GLM_HAS_TRIVIAL_QUERIES !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
+// 
+#if GLM_LANG & GLM_LANG_CXX11_FLAG
+#	define GLM_HAS_ASSIGNABLE 1
+#else
+#	define GLM_HAS_ASSIGNABLE (GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
+		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC49)))
+#endif
+
+// 
+#define GLM_HAS_TRIVIAL_QUERIES ( \
 	((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013)))
 
-#define GLM_HAS_MAKE_SIGNED !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && ( \
-	(GLM_LANG & GLM_LANG_CXX11_FLAG) || \
+// 
+#if GLM_LANG & GLM_LANG_CXX11_FLAG
+#	define GLM_HAS_MAKE_SIGNED 1
+#else
+#	define GLM_HAS_MAKE_SIGNED (GLM_LANG & GLM_LANG_CXX0X_FLAG) && (\
 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013)))
+#endif
 
-#define GLM_HAS_BITSCAN_WINDOWS ( \
-	(GLM_ARCH != GLM_ARCH_PURE) && \
-	(GLM_PLATFORM & GLM_PLATFORM_WINDOWS) && \
-	(GLM_COMPILER & (GLM_COMPILER_VC | GLM_COMPILER_LLVM | GLM_COMPILER_INTEL)))
+// 
+#if GLM_ARCH == GLM_ARCH_PURE
+#	define GLM_HAS_BITSCAN_WINDOWS 0
+#else
+#	define GLM_HAS_BITSCAN_WINDOWS (GLM_PLATFORM & GLM_PLATFORM_WINDOWS) && (\
+		(GLM_COMPILER & (GLM_COMPILER_VC | GLM_COMPILER_LLVM | GLM_COMPILER_INTEL))
+#endif
 
 // OpenMP
 #ifdef _OPENMP 
@@ -624,7 +670,7 @@
 #endif
 
 // Not standard
-#define GLM_HAS_ANONYMOUS_UNION !defined(GLM_FORCE_CXX98) && !defined(GLM_FORCE_CXX03) && (GLM_LANG & GLM_LANG_CXXMS_FLAG)
+#define GLM_HAS_ANONYMOUS_UNION (GLM_LANG & GLM_LANG_CXXMS_FLAG)
 
 ///////////////////////////////////////////////////////////////////////////////////
 // Platform