Viewing file:  eh-vararg-1.C (1.16 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-skip-if "Stack alignment is too small" { hppa*-*-hpux* } } */
/* { dg-require-effective-target alloca } */
#include <stdarg.h>
#include "check.h"
#ifndef ALIGNMENT
#define ALIGNMENT 64
#endif
typedef int aligned __attribute__((aligned(ALIGNMENT)));
int global;
void
bar (char *p, int size)
{
__builtin_strncpy (p, "good", size);
}
class Base {};
struct A : virtual public Base
{
A() {}
};
struct B {};
void
foo (const char *fmt, ...)
#if __cplusplus <= 201402L
throw (B,A) // { dg-warning "deprecated" "" { target { c++11 && { ! c++17 } } } }
#endif
{
va_list arg;
char *p;
aligned i;
int size;
double x;
va_start (arg, fmt);
size = va_arg (arg, int);
if (size != 5)
abort ();
p = (char *) __builtin_alloca (size + 1);
x = va_arg (arg, double);
if (x != 5.0)
abort ();
bar (p, size);
if (__builtin_strncmp (p, "good", size) != 0)
{
#ifdef DEBUG
p[size] = '\0';
printf ("Failed: %s != good\n", p);
#endif
abort ();
}
if (check_int (&i, __alignof__(i)) != i)
abort ();
throw A();
va_end (arg);
}
int
main()
{
try { foo ("foo", 5, 5.0); }
catch (A& a) { }
return 0;
}
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