gcc/testsuite/gcc.dg/format/multattr-1.c

   1 /* Test for multiple format attributes.  Test for printf and scanf attributes
   2    together.  */
   3 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
   4 /* { dg-do compile } */
   5 /* { dg-options "-std=gnu99 -Wformat" } */
   6
   7 #define DONT_GNU_PROTOTYPE
   8 #include "format.h"
   9
  10 /* If we specify multiple attributes for a single function, they should
  11    all apply.  This should apply whether they are on the same declaration
  12    or on different declarations.  */
  13
  14 extern void my_vprintf_scanf (const char *, va_list, const char *, ...)
  15      __attribute__((__format__(gnu_attr___printf__, 1, 0)))
  16      __attribute__((__format__(gnu_attr___scanf__, 3, 4)));
  17
  18 extern void my_vprintf_scanf2 (const char *, va_list, const char *, ...)
  19      __attribute__((__format__(gnu_attr___scanf__, 3, 4)))
  20      __attribute__((__format__(gnu_attr___printf__, 1, 0)));
  21
  22 extern void my_vprintf_scanf3 (const char *, va_list, const char *, ...)
  23      __attribute__((__format__(gnu_attr___printf__, 1, 0)));
  24 extern void my_vprintf_scanf3 (const char *, va_list, const char *, ...)
  25      __attribute__((__format__(gnu_attr___scanf__, 3, 4)));
  26
  27 extern void my_vprintf_scanf4 (const char *, va_list, const char *, ...)
  28      __attribute__((__format__(gnu_attr___scanf__, 3, 4)));
  29 extern void my_vprintf_scanf4 (const char *, va_list, const char *, ...)
  30      __attribute__((__format__(gnu_attr___printf__, 1, 0)));
  31
  32 void
  33 foo (va_list ap, int *ip, long *lp)
  34 {
  35   my_vprintf_scanf ("%d", ap, "%d", ip);
  36   my_vprintf_scanf ("%d", ap, "%ld", lp);
  37   my_vprintf_scanf ("%", ap, "%d", ip); /* { dg-warning "format" "printf" } */
  38   my_vprintf_scanf ("%d", ap, "%ld", ip); /* { dg-warning "format" "scanf" } */
  39   my_vprintf_scanf2 ("%d", ap, "%d", ip);
  40   my_vprintf_scanf2 ("%d", ap, "%ld", lp);
  41   my_vprintf_scanf2 ("%", ap, "%d", ip); /* { dg-warning "format" "printf" } */
  42   my_vprintf_scanf2 ("%d", ap, "%ld", ip); /* { dg-warning "format" "scanf" } */
  43   my_vprintf_scanf3 ("%d", ap, "%d", ip);
  44   my_vprintf_scanf3 ("%d", ap, "%ld", lp);
  45   my_vprintf_scanf3 ("%", ap, "%d", ip); /* { dg-warning "format" "printf" } */
  46   my_vprintf_scanf3 ("%d", ap, "%ld", ip); /* { dg-warning "format" "scanf" } */
  47   my_vprintf_scanf4 ("%d", ap, "%d", ip);
  48   my_vprintf_scanf4 ("%d", ap, "%ld", lp);
  49   my_vprintf_scanf4 ("%", ap, "%d", ip); /* { dg-warning "format" "printf" } */
  50   my_vprintf_scanf4 ("%d", ap, "%ld", ip); /* { dg-warning "format" "scanf" } */
  51 }