gcc/testsuite/gcc.dg/pr15698-6.c

   1 /* Test diagnostics for old-style definition not matching prior
   2    prototype are present and give correct location for that prototype
   3    (bug 15698).  Prototyped built-in function, wrong number of
   4    arguments.  */
   5 /* Origin: Joseph Myers <joseph@codesourcery.com> */
   6 /* { dg-do compile } */
   7 /* { dg-options "-std=gnu99" } */
   8
   9 char *strchr(a) const char *a; { return 0; } /* { dg-warning "warning: number of arguments doesn't match built-in prototype" } */