gcc/testsuite/gcc.dg/format/attr-7.c

   1 /* Test for format attributes: test applying them to types.  */
   2 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=gnu99 -Wformat" } */
   5
   6 #define DONT_GNU_PROTOTYPE
   7 #include "format.h"
   8
   9 __attribute__((format(gnu_attr_printf, 1, 2))) void (*tformatprintf0) (const char *, ...);
  10 void (*tformatprintf1) (const char *, ...) __attribute__((format(gnu_attr_printf, 1, 2)));
  11 void (__attribute__((format(gnu_attr_printf, 1, 2))) *tformatprintf2) (const char *, ...);
  12 void (__attribute__((format(gnu_attr_printf, 1, 2))) ****tformatprintf3) (const char *, ...);
  13
  14 char * (__attribute__((format_arg(1))) *tformat_arg) (const char *);
  15
  16 void
  17 baz (int i)
  18 {
  19   (*tformatprintf0) ("%d", i);
  20   (*tformatprintf0) ((*tformat_arg) ("%d"), i);
  21   (*tformatprintf0) ("%"); /* { dg-warning "23:format" "prefix" } */
  22   (*tformatprintf0) ((*tformat_arg) ("%")); /* { dg-warning "format" "prefix" } */
  23   (*tformatprintf1) ("%d", i);
  24   (*tformatprintf1) ((*tformat_arg) ("%d"), i);
  25   (*tformatprintf1) ("%"); /* { dg-warning "format" "postfix" } */
  26   (*tformatprintf1) ((*tformat_arg) ("%")); /* { dg-warning "format" "postfix" } */
  27   (*tformatprintf2) ("%d", i);
  28   (*tformatprintf2) ((*tformat_arg) ("%d"), i);
  29   (*tformatprintf2) ("%"); /* { dg-warning "format" "nested" } */
  30   (*tformatprintf2) ((*tformat_arg) ("%")); /* { dg-warning "format" "nested" } */
  31   (****tformatprintf3) ("%d", i);
  32   (****tformatprintf3) ((*tformat_arg) ("%d"), i);
  33   (****tformatprintf3) ("%"); /* { dg-warning "format" "nested 2" } */
  34   (****tformatprintf3) ((*tformat_arg) ("%")); /* { dg-warning "format" "nested 2" } */
  35 }