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      1 // RUN: %clang_cc1 -fsyntax-only -verify %s
      2 // expected-no-diagnostics
      3 
      4 // NULL is rdefined in stddef.h
      5 #define NULL ((void*) 0)
      6 
      7 // These are headers bundled with Clang.
      8 #include <stdarg.h>
      9 #include <stddef.h>
     10 
     11 #ifndef _VA_LIST
     12 typedef __builtin_va_list va_list;
     13 #endif
     14 
     15 #ifndef _SIZE_T
     16 typedef __typeof__(sizeof(int)) size_t;
     17 #endif
     18 
     19 #ifndef _WCHAR_T
     20 typedef __typeof__(*L"") wchar_t;
     21 #endif
     22 
     23 extern void foo(wchar_t x);
     24 extern void bar(size_t x);
     25 void *baz() { return NULL; }
     26 void quz() {
     27   va_list y;
     28 }
     29 
     30