gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c89.c

   1 /* -Woverlength-strings complains about string constants which are too long
   2    for the C standard's "minimum maximum" limits.  It is off by default,
   3    but implied by -pedantic.  */
   4
   5 /* { dg-options "-std=c89 -pedantic" } */
   6
   7 #define TEN "xxxxxxxxxx"
   8 #define HUN TEN TEN TEN TEN TEN  TEN TEN TEN TEN TEN
   9 #define THO HUN HUN HUN HUN HUN  HUN HUN HUN HUN HUN
  10
  11 /* C89's minimum-maximum is 509. */
  12 const char x510[] = HUN HUN HUN HUN HUN TEN; /* { dg-warning "greater than" } */
  13
  14 /* C99's minimum-maximum is 4095.  */
  15 const char x4096[] =
  16   THO THO THO THO     /* 4000 */
  17   TEN TEN TEN TEN TEN /* 4050 */
  18   TEN TEN TEN TEN     /* 4090 */
  19   "123456";  /* { dg-warning "greater than" } */