1  /* Test for warnings for missing format attributes.  */
       2  /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
       3  /* { dg-do compile } */
       4  /* { dg-options "-std=gnu99 -Wmissing-format-attribute" } */
       5  
       6  #include "format.h"
       7  
       8  void
       9  foo (const char *fmt, ...)
      10  {
      11    va_list ap;
      12    va_start (ap, fmt);
      13    vprintf (fmt, ap); /* { dg-warning "candidate" "printf attribute warning" } */
      14    va_end (ap);
      15  }
      16  
      17  void
      18  bar (const char *fmt, ...)
      19  {
      20    va_list ap;
      21    va_start (ap, fmt);
      22    vscanf (fmt, ap); /* { dg-warning "candidate" "scanf attribute warning" } */
      23    va_end (ap);
      24  }
      25  
      26  __attribute__((__format__(gnu_attr___printf__, 1, 2))) void
      27  foo2 (const char *fmt, ...)
      28  {
      29    va_list ap;
      30    va_start (ap, fmt);
      31    vprintf (fmt, ap);
      32    va_end (ap);
      33  }
      34  
      35  void
      36  vfoo (const char *fmt, va_list arg)
      37  {
      38    vprintf (fmt, arg); /* { dg-warning "candidate" "printf attribute warning 2" } */
      39  }