gcc/testsuite/gcc.dg/gnu-predef-1.c

   1 /* Test that we diagnose the __FUNCTION__ and the __PRETTY_FUNCTION__
   2    predefined identifiers in pedantic mode.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=gnu11 -pedantic" } */
   5
   6 void
   7 foo (void)
   8 {
   9   const char *s;
  10   s = __FUNCTION__; /* { dg-warning " ISO C does not support .__FUNCTION__. predefined identifier" } */
  11   s = __PRETTY_FUNCTION__; /* { dg-warning " ISO C does not support .__PRETTY_FUNCTION__. predefined identifier" } */
  12   s = __extension__ __FUNCTION__;
  13   s = __extension__ __PRETTY_FUNCTION__;
  14 }