From e20cf3d14997c3511e264748c59687a801caa6ed Mon Sep 17 00:00:00 2001 From: Bob Wilson Date: Tue, 4 Sep 2012 17:42:53 +0000 Subject: Make sure macros in the include subdirectory are not used without being defined. Rationale: For each preprocessor macro, either the definedness is what's meaningful, or the value is what's meaningful, or both. If definedness is meaningful, we should use #ifdef. If the value is meaningful, we should use and #ifdef interchangeably for the same macro, seems ugly to me, even if undefined macros are zero if used. This also has the benefit that including an LLVM header doesn't prevent you from compiling with -Wundef -Werror. Patch by John Garvin! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163148 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/Support/Compiler.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/llvm/Support/Compiler.h') diff --git a/include/llvm/Support/Compiler.h b/include/llvm/Support/Compiler.h index 4f5b8f8239..1136ff70c3 100644 --- a/include/llvm/Support/Compiler.h +++ b/include/llvm/Support/Compiler.h @@ -24,7 +24,7 @@ /// does not imply the existence of any other C++ library features. #if (__has_feature(cxx_rvalue_references) \ || defined(__GXX_EXPERIMENTAL_CXX0X__) \ - || _MSC_VER >= 1600) + || (defined(_MSC_VER) && _MSC_VER >= 1600)) #define LLVM_USE_RVALUE_REFERENCES 1 #else #define LLVM_USE_RVALUE_REFERENCES 0 -- cgit v1.2.3