Added a recursive switch implementation for C++14/17.

mpark · Jan 9, 2019 · 62b41fe · 62b41fe
1 parent b2b6526
commit 62b41fe
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Showing 2 changed files with 258 additions and 67 deletions.
diff --git a/include/mpark/config.hpp b/include/mpark/config.hpp
@@ -13,6 +13,10 @@
 #error "MPark.Variant requires C++11 support."
 #endif
 
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+
 #ifndef __has_builtin
 #define __has_builtin(x) 0
 #endif
@@ -25,6 +29,14 @@
 #define __has_feature(x) 0
 #endif
 
+#if __has_attribute(always_inline) || defined(__GNUC__)
+#define MPARK_ALWAYS_INLINE __attribute__((__always_inline__)) inline
+#elif defined(_MSC_VER)
+#define MPARK_ALWAYS_INLINE __forceinline
+#else
+#define MPARK_ALWAYS_INLINE inline
+#endif
+
 #if __has_builtin(__builtin_addressof) || \
     (defined(__GNUC__) && __GNUC__ >= 7) || defined(_MSC_VER)
 #define MPARK_BUILTIN_ADDRESSOF