try to detect __Has_builtin

vittorioromeo · Apr 5, 2023 · c2eb50e · c2eb50e
1 parent 2ddd980
commit c2eb50e
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/include/SSVOpenHexagon/Utils/TinyVariant.hpp b/include/SSVOpenHexagon/Utils/TinyVariant.hpp
@@ -5,13 +5,21 @@
 #include <initializer_list> // TODO: remove dependency?
 #include <new>              // TODO: remove dependency?
 
+#if ((__GNUC__ >= 10) || defined(__clang__)) && !defined(_MSC_VER)
+#define TINYVARIANT_SUPPORTS_HAS_BUILTIN
+#endif
+
+#ifdef TINYVARIANT_SUPPORTS_HAS_BUILTIN
 #if __has_builtin(__make_integer_seq)
 #define TINYVARIANT_USE_MAKE_INTEGER_SEQ
 #elif __has_builtin(__integer_pack)
 #define TINYVARIANT_USE_INTEGER_PACK
 #else
 #define TINYVARIANT_USE_STD_INDEX_SEQUENCE
 #endif
+#else
+#define TINYVARIANT_USE_STD_INDEX_SEQUENCE
+#endif
 
 #ifdef TINYVARIANT_USE_STD_INDEX_SEQUENCE
 #include <utility>