clang/test/Sema/Inputs/diagnose-if-warn-system-header.h

   1 #pragma GCC system_header
   2
   3 inline int system_header_func(int x)
   4   __attribute__((diagnose_if(x == x, "system header warning", "warning"))) // expected-note {{from 'diagnose_if' attribute}}
   5 {
   6   return 0;
   7 }
   8
   9 void test_system_header(void) {
  10   system_header_func(0); // expected-warning {{system header warning}}
  11 }