gcc/testsuite/g++.old-deja/g++.other/vaarg3.C


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32

// { dg-do assemble  }
// { dg-options "-Wno-abi" { target arm_eabi } }

// Copyright (C) 1999 Free Software Foundation, Inc.
// Contributed by Nathan Sidwell 4 Oct 1999 <nathan@acm.org>

// Make sure we diagnose bad uses of va_arg

#include <stdarg.h>

struct X {int m;};
struct Y { Y(const Y&); };
struct Z;   // { dg-error "forward decl" } 
void fn1(va_list args)
{
  int i = va_arg (args, int);
  Y x = va_arg (args, Y);         // { dg-error "cannot receive" }
  Y y = va_arg (args, struct Y);  // { dg-error "cannot receive" }
  int &r = va_arg (args, int &);  // { dg-error "cannot receive" }
  
  Z z1 = va_arg (args, Z);        // { dg-error "incomplete" } 
  const Z &z2 = va_arg (args, Z);       // { dg-error "incomplete" } 

  va_arg (args, char);    // { dg-warning "promote" } 
  // { dg-message "should pass" "pass" { target *-*-* } 24 }
  // { dg-message "abort" "abort" { target *-*-* } 24 }
  va_arg (args, int []);  // { dg-error "array with unspecified bounds" } promote
  va_arg (args, int ());  // { dg-warning "promoted" } promote
  // { dg-message "abort" "abort" { target *-*-* } 28 }
  va_arg (args, bool);    // { dg-warning "promote" "promote" } 
  // { dg-message "abort" "abort" { target *-*-* } 30 }
}