gcc/testsuite/gcc.c-torture/execute/builtins/lib/strchr.c

   1 extern void abort (void);
   2 extern int inside_main;
   3
   4 __attribute__ ((__noinline__))
   5 char *
   6 strchr (const char *s, int c)
   7 {
   8 #ifdef __OPTIMIZE__
   9   if (inside_main)
  10     abort ();
  11 #endif
  12
  13   for (;;)
  14     {
  15       if (*s == c)
  16         return (char *) s;
  17       if (*s == 0)
  18         return 0;
  19       s++;
  20     }
  21 }
  22
  23 __attribute__ ((__noinline__))
  24 char *
  25 index (const char *s, int c)
  26 {
  27   return strchr (s, c);
  28 }