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 "-Wmissing-format-attribute" } */ 5/* { dg-options "-Wmissing-format-attribute -Wno-abi" { target arm_eabi } } */ 6 7#include <stdarg.h> 8 9typedef void (*noattr_t) (const char *, ...); 10typedef noattr_t __attribute__ ((__format__(__printf__, 1, 2))) attr_t; 11 12typedef void (*vnoattr_t) (const char *, va_list); 13typedef vnoattr_t __attribute__ ((__format__(__printf__, 1, 0))) vattr_t; 14 15noattr_t 16foo1 (noattr_t na, attr_t a, int i) 17{ 18 if (i) 19 return na; 20 else 21 return a; /* { dg-warning "candidate" "return type warning" } */ 22} 23 24attr_t 25foo2 (noattr_t na, attr_t a, int i) 26{ 27 if (i) 28 return na; 29 else 30 return a; 31} 32 33vnoattr_t 34foo3 (vnoattr_t vna, vattr_t va, int i) 35{ 36 if (i) 37 return vna; 38 else 39 return va; /* { dg-warning "candidate" "return type warning" } */ 40} 41 42vattr_t 43foo4 (vnoattr_t vna, vattr_t va, int i) 44{ 45 if (i) 46 return vna; 47 else 48 return va; 49} 50