clean up use of _WIN32
Replace the use of _WIN32 in libc++. Replace most use with a C runtime
check _LIBCPP_MSVCRT or the new _LIBCPP_WIN32 to indicate that we are
using the Win32 API. Use a new _LIBCPP_WCHAR_IS_UCS2 to indicate that we
are on an environment that has a short wchar_t.
llvm-svn: 290910
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: b2826a1ddc761fb6abcf8d80793a20387e9dc5f6
diff --git a/src/new.cpp b/src/new.cpp
index 734d931..782aac9 100644
--- a/src/new.cpp
+++ b/src/new.cpp
@@ -72,7 +72,7 @@
if (static_cast<size_t>(alignment) < sizeof(void*))
alignment = std::align_val_t(sizeof(void*));
void* p;
-#if defined(_WIN32)
+#if defined(_LIBCPP_MSVCRT)
while ((p = _aligned_malloc(size, static_cast<size_t>(alignment))) == nullptr)
#else
while (::posix_memalign(&p, static_cast<size_t>(alignment), size) != 0)