gcc/testsuite/gcc.dg/format/c90-strftime-1.c

   1 /* Test for strftime formats.  Formats using C90 features.  */
   2 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=iso9899:1990 -pedantic -Wformat -Wformat-y2k" } */
   5
   6 #include "format.h"
   7
   8 void
   9 foo (char *s, size_t m, const struct tm *tp)
  10 {
  11   /* See ISO/IEC 9899:1990 (E) subclause 7.12.3.5 (pages 174-175).  */
  12   /* Formats which are Y2K-compliant (no 2-digit years).  */
  13   strftime (s, m, "%a%A%b%B%d%H%I%j%m%M%p%S%U%w%W%X%Y%Z%%", tp);
  14   /* Formats with 2-digit years.  */
  15   strftime (s, m, "%y", tp); /* { dg-warning "only last 2" "2-digit year" } */
  16   /* Formats with 2-digit years in some locales.  */
  17   strftime (s, m, "%c", tp); /* { dg-warning "some locales" "2-digit year" } */
  18   strftime (s, m, "%x", tp); /* { dg-warning "some locales" "2-digit year" } */
  19 }