gcc/testsuite/gcc.dg/format/zero-length-1.c

   1 /* Test the -Wno-format-zero-length option, which suppresses warnings
   2    about zero-length formats.  */
   3 /* Origin: Jason Thorpe <thorpej@wasabisystems.com> */
   4 /* { dg-do compile } */
   5 /* { dg-options "-std=iso9899:1990 -pedantic -Wformat -Wno-format-zero-length" } */
   6
   7 #include "format.h"
   8
   9 void
  10 foo (void)
  11 {
  12   /* See ISO/IEC 9899:1990 (E) subclause 7.9.6.1 (pages 131-134).  */
  13   /* Zero-length format strings are allowed.  */
  14   printf ("");
  15 }