[Headers] Use standard builtin defines instead of typeof trickery.

 - The trickery can confuse more basic source processors, in particular the
   Unix conformance tool that wants to scan headers.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174475 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Headers/stddef.h b/lib/Headers/stddef.h
index eb919b57bcb9e20d37f267d1240c720d6740c28e..ad5dc21fb0443cdd8630dde9495223770271fa05 100644 (file)
--- a/lib/Headers/stddef.h
+++ b/lib/Headers/stddef.h
@@ -28,11 +28,11 @@
 
 #ifndef _PTRDIFF_T
 #define _PTRDIFF_T
-typedef __typeof__(((int*)0)-((int*)0)) ptrdiff_t;
+typedef __PTRDIFF_TYPE__ ptrdiff_t;
 #endif
 #ifndef _SIZE_T
 #define _SIZE_T
-typedef __typeof__(sizeof(int)) size_t;
+typedef __SIZE_TYPE__ size_t;
 #endif
 #ifndef __cplusplus
 #ifndef _WCHAR_T