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 foo(void)10foo (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 } 16