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/* Test C1X _Noreturn.  Test valid code.  */
/* { dg-do compile } */
/* { dg-options "-std=c1x -pedantic-errors" } */
 
_Noreturn void exit (int);
 
_Noreturn int f1 (void);
 
_Noreturn void f2 (void);
 
static void _Noreturn f3 (void) { exit (0); }
 
/* Returning from a noreturn function is undefined at runtime, not a
   constraint violation, but recommended practice is to diagnose if
   such a return appears possible.  */
 
_Noreturn int
f4 (void)
{
  return 1; /* { dg-warning "has a 'return' statement" } */
  /* { dg-warning "does return" "second warning" { target *-*-* } 20 } */
}
 
_Noreturn void
f5 (void)
{
  return; /* { dg-warning "has a 'return' statement" } */
  /* { dg-warning "does return" "second warning" { target *-*-* } 27 } */
}
 
_Noreturn void
f6 (void)
{
} /* { dg-warning "does return" } */
 
_Noreturn void
f7 (int a)
{
  if (a)
    exit (0);
} /* { dg-warning "does return" } */
 
/* Declarations need not all have _Noreturn.  */
 
void f2 (void);
 
void f8 (void);
_Noreturn void f8 (void);
 
/* Duplicate _Noreturn is OK.  */
_Noreturn _Noreturn void _Noreturn f9 (void);
 
/* _Noreturn does not affect type compatibility.  */
 
void (*fp) (void) = f5;
 
/* noreturn is an ordinary identifier.  */
 
int noreturn;