Nico Rieck: Currently _MSC_VER and _WIN32 are used to guard code which is
MSVC-specific, MSVCRT-specific, or Windows-specific. Because Clang can
also define _MSC_VER, and MSVCRT is not necessarily the only C runtime,
these macros should not be used interchangeably.
This patch divides all Windows-related bits into the aforementioned
categories. Two new macros are introduced:
- _LIBCPP_MSVC: Defined when compiling with MSVC. Detected using
_MSC_VER, excluding Clang.
- _LIBCPP_MSVCRT: Defined when using the Microsoft CRT. This is the default
when _WIN32 is defined.
This leaves _WIN32 for code using the Windows API.
This also corrects the spelling of _LIBCP_HAS_IS_BASE_OF to _LIBCPP_HAS_IS_BASE_OF.
Nico, please prepare a patch for CREDITS.TXT, thanks.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@187593 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/cstdio b/include/cstdio
index 718d2f7..1cde3ee 100644
--- a/include/cstdio
+++ b/include/cstdio
@@ -138,12 +138,12 @@
using ::snprintf;
using ::sprintf;
using ::sscanf;
-#ifndef _MSC_VER
+#ifndef _LIBCPP_MSVCRT
using ::vfprintf;
using ::vfscanf;
using ::vscanf;
using ::vsscanf;
-#endif // _MSC_VER
+#endif // _LIBCPP_MSVCRT
using ::vprintf;
using ::vsnprintf;
using ::vsprintf;