clang/test/Sema/builtin-redecl.cpp

   1 // RUN: %clang_cc1 %s -fsyntax-only -verify
   2 // RUN: %clang_cc1 %s -fsyntax-only -verify -x c
   3 // RUN: %clang_cc1 %s -fsyntax-only -verify -fms-compatibility
   4
   5 typedef __typeof__(sizeof(0)) size_t;
   6
   7 // Redeclaring library builtins is OK.
   8 void exit(int);
   9
  10 // expected-error@+2 {{cannot redeclare builtin function '__builtin_va_copy'}}
  11 // expected-note@+1 {{'__builtin_va_copy' is a builtin with type}}
  12 void __builtin_va_copy(double d);
  13
  14 // expected-error@+2 {{cannot redeclare builtin function '__builtin_va_end'}}
  15 // expected-note@+1 {{'__builtin_va_end' is a builtin with type}}
  16 void __builtin_va_end(__builtin_va_list);
  17 // RUN: %clang_cc1 %s -fsyntax-only -verify
  18 // RUN: %clang_cc1 %s -fsyntax-only -verify -x c
  19
  20 void __va_start(__builtin_va_list*, ...);
  21
  22 #ifdef __cplusplus
  23 void *__builtin_assume_aligned(const void *, size_t, ...) noexcept;
  24 #else
  25 void *__builtin_assume_aligned(const void *, size_t, ...);
  26 #endif