gcc/testsuite/gcc.dg/format/ms_multattr-2.c

   1 /* Test for multiple format attributes.  Test for printf and scanf attributes
   2    together, in different places on the declarations.  */
   3 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
   4 /* { dg-do compile { target { *-*-mingw* } } } */
   5 /* { dg-options "-std=gnu99 -Wformat" } */
   6
   7 #define USE_SYSTEM_FORMATS
   8 #include "format.h"
   9
  10 /* If we specify multiple attributes for a single function, they should
  11    all apply, wherever they are placed on the declarations.  */
  12
  13 extern __attribute__((__format__(__ms_printf__, 1, 0))) void
  14      my_vprintf_scanf (const char *, va_list, const char *, ...)
  15      __attribute__((__format__(__ms_scanf__, 3, 4)));
  16
  17 extern void (__attribute__((__format__(__ms_printf__, 1, 0))) my_vprintf_scanf2)
  18      (const char *, va_list, const char *, ...)
  19      __attribute__((__format__(__ms_scanf__, 3, 4)));
  20
  21 extern __attribute__((__format__(__ms_scanf__, 3, 4))) void
  22      (__attribute__((__format__(__ms_printf__, 1, 0))) my_vprintf_scanf3)
  23      (const char *, va_list, const char *, ...);
  24
  25 void
  26 foo (va_list ap, int *ip, long *lp)
  27 {
  28   my_vprintf_scanf ("%d", ap, "%d", ip);
  29   my_vprintf_scanf ("%d", ap, "%ld", lp);
  30   my_vprintf_scanf ("%", ap, "%d", ip); /* { dg-warning "format" "printf" } */
  31   my_vprintf_scanf ("%d", ap, "%ld", ip); /* { dg-warning "format" "scanf" } */
  32   my_vprintf_scanf2 ("%d", ap, "%d", ip);
  33   my_vprintf_scanf2 ("%d", ap, "%ld", lp);
  34   my_vprintf_scanf2 ("%", ap, "%d", ip); /* { dg-warning "format" "printf" } */
  35   my_vprintf_scanf2 ("%d", ap, "%ld", ip); /* { dg-warning "format" "scanf" } */
  36   my_vprintf_scanf3 ("%d", ap, "%d", ip);
  37   my_vprintf_scanf3 ("%d", ap, "%ld", lp);
  38   my_vprintf_scanf3 ("%", ap, "%d", ip); /* { dg-warning "format" "printf" } */
  39   my_vprintf_scanf3 ("%d", ap, "%ld", ip); /* { dg-warning "format" "scanf" } */
  40 }