1  /* PR c/98487 */
       2  /* { dg-do compile { target { c || c++11 } } } */
       3  /* { dg-options "-Wsuggest-attribute=format" } */
       4  
       5  #include <stdarg.h>
       6  
       7  [[gnu::__format__(__printf__, 1, 2)]]
       8  void
       9  do_printf(const char * const a0, ...)
      10  {
      11    va_list ap;
      12    va_start(ap, a0);
      13    __builtin_vprintf(a0, ap);
      14    va_end(ap);
      15  }
      16  
      17  [[gnu::__format__(__scanf__, 1, 2)]]
      18  void
      19  do_scanf(const char * const a0, ...)
      20  {
      21    va_list ap;
      22    va_start(ap, a0);
      23    __builtin_vscanf(a0, ap);
      24    va_end(ap);
      25  }
      26  
      27  struct tm;
      28  
      29  [[gnu::__format__(__strftime__, 1, 0)]]
      30  void
      31  do_strftime(const char * const a0, struct tm * a1)
      32  {
      33    char buff[256];
      34    __builtin_strftime(buff, sizeof(buff), a0, a1);
      35    __builtin_puts(buff);
      36  }