gcc/testsuite/gcc.dg/format/miss-3.c

   1 /* Test warnings for missing format attributes on function pointers.  */
   2 /* Origin: Kaveh Ghazi <ghazi@caip.rutgers.edu> */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=gnu99 -Wmissing-format-attribute" } */
   5
   6 #define DONT_GNU_PROTOTYPE
   7 #include "format.h"
   8
   9 typedef void (*noattr_t) (const char *, ...);
  10 typedef noattr_t __attribute__ ((__format__(gnu_attr___printf__, 1, 2))) attr_t;
  11
  12 typedef void (*vnoattr_t) (const char *, va_list);
  13 typedef vnoattr_t __attribute__ ((__format__(gnu_attr___printf__, 1, 0))) vattr_t;
  14
  15 void
  16 foo1 (noattr_t na, attr_t a, vnoattr_t vna, vattr_t va)
  17 {
  18   noattr_t na1 = na;
  19   noattr_t na2 = a; /* { dg-warning "candidate" "initialization warning" } */
  20   attr_t a1 = na;
  21   attr_t a2 = a;
  22
  23   vnoattr_t vna1 = vna;
  24   vnoattr_t vna2 = va; /* { dg-warning "candidate" "initialization warning" } */
  25   vattr_t va1 = vna;
  26   vattr_t va2 = va;
  27 }