Testing new int-serialization logic.

Author: RealTimeChris

Include/jsonifier/Core/Config.hpp

@@ -51,6 +51,12 @@
 	#define JSONIFIER_IS_ARM64 1
 #endif
 
+#if defined(__has_builtin)
+	#define JSONIFIER_HAS_BUILTIN(x) __has_builtin(x)
+#else
+	#define JSONIFIER_HAS_BUILTIN(x) 0
+#endif
+
 #if defined(macintosh) || defined(Macintosh) || (defined(__APPLE__) && defined(__MACH__)) || defined(TARGET_OS_MAC)
 	#define JSONIFIER_MAC 1
 #elif defined(linux) || defined(__linux) || defined(__linux__) || defined(__gnu_linux__)