refactor: continue refactor to make the project can be built

src/yycc/macro/stl_detector.hpp

@@ -0,0 +1,14 @@
+#pragma once
+
+// Include a common used STL header for convenient test.
+#include <cinttypes>
+
+#if defined(_MSVC_STL_VERSION)
+#define YYCC_STL_MSSTL
+#elif defined(__GLIBCXX__) || defined(__GLIBCPP__)
+#define YYCC_STL_GNUSTL
+#elif defined(_LIBCPP_VERSION)
+#define YYCC_STL_CLANGSTL
+#else
+#error "Current STL is not supported!"
+#endif