miss-6.c
来自「linux下编程用 编译软件」· C语言 代码 · 共 32 行
C
32 行
/* Test warnings for missing format attributes on function pointers. *//* Origin: Kaveh Ghazi <ghazi@caip.rutgers.edu> *//* { dg-do compile } *//* { dg-options "-std=gnu99 -Wmissing-format-attribute" } */#include "format.h"typedef void (*noattr_t) (const char *, ...);typedef noattr_t __attribute__ ((__format__(__printf__, 1, 2))) attr_t;typedef void (*vnoattr_t) (const char *, va_list);typedef vnoattr_t __attribute__ ((__format__(__printf__, 1, 0))) vattr_t;extern void foo1 (noattr_t);extern void foo2 (attr_t);extern void foo3 (vnoattr_t);extern void foo4 (vattr_t);voidfoo (noattr_t na, attr_t a, vnoattr_t vna, vattr_t va){ foo1 (na); foo1 (a); /* { dg-warning "candidate" "parameter passing warning" } */ foo2 (na); foo2 (a); foo3 (vna); foo3 (va); /* { dg-warning "candidate" "parameter passing warning" } */ foo4 (vna); foo4 (va);}
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