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/* N3356 - if declarations. */
/* PR c/117019 */
/* { dg-do run } */
/* { dg-require-effective-target sync_int_long } */
/* { dg-options "-std=c2y -Wc23-c2y-compat" } */
/* Test C2Y if declarations. Valid usages. */
int get () { return 42; }
int foo (int i) { return i; }
enum E { X = 1, Y };
void
simple ()
{
if (int i = get ()) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (int i = 0) /* { dg-warning "if declarations before C2Y" } */
__builtin_abort ();
else
foo (i);
if (auto i = get ()) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (__typeof__(get ()) i = get ()) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (auto i = 0) /* { dg-warning "if declarations before C2Y" } */
__builtin_abort ();
else
foo (i);
if (int (*f)(int) = foo) /* { dg-warning "if declarations before C2Y" } */
f (1);
else
__builtin_abort ();
if ([[maybe_unused]] int i = get ()) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (__attribute__((unused)) int i = get ()) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (enum E e = X) /* { dg-warning "if declarations before C2Y" } */
foo (e);
else
__builtin_abort ();
if (constexpr int i = 42) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (int i = 1) /* { dg-warning "if declarations before C2Y" } */
if (int j = 2) /* { dg-warning "if declarations before C2Y" } */
if (int k = 3) /* { dg-warning "if declarations before C2Y" } */
foo (i + j + k);
if (register int i = 0); /* { dg-warning "if declarations before C2Y" } */
if (static int i = 0); /* { dg-warning "if declarations before C2Y" } */
if (static int arr[3] = {}); /* { dg-warning "if declarations before C2Y" } */
if (_Atomic int i = 0); /* { dg-warning "if declarations before C2Y" } */
if (int arr[] = { 1 }) /* { dg-warning "if declarations before C2Y" } */
foo (arr[0]);
else
__builtin_abort ();
double i;
}
void
expr ()
{
if (int i = get (); i == 42) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (int i = get (); i != 42) /* { dg-warning "if declarations before C2Y" } */
__builtin_abort ();
else
foo (i);
if (auto i = get (); i == 42) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (__typeof__(get ()) i = get (); i == 42) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (auto i = get (); i != 42) /* { dg-warning "if declarations before C2Y" } */
__builtin_abort ();
else
foo (i);
if (int (*f)(int) = foo; f (42)) /* { dg-warning "if declarations before C2Y" } */
f (1);
else
__builtin_abort ();
if ([[maybe_unused]] int i = get (); i == 42) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (__attribute__((unused)) int i = get (); i == 42) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (enum E e = X; e == X) /* { dg-warning "if declarations before C2Y" } */
foo (e);
else
__builtin_abort ();
if (constexpr int i = 42; i == 42) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (int i = 1; i) /* { dg-warning "if declarations before C2Y" } */
if (int j = 2; j) /* { dg-warning "if declarations before C2Y" } */
if (int k = 3; k) /* { dg-warning "if declarations before C2Y" } */
foo (i + j + k);
if (int i = 2, j = get (); i + j > 0) /* { dg-warning "if declarations before C2Y" } */
foo (i + j);
else
__builtin_abort ();
if (int i; i = 1) /* { dg-warning "if declarations before C2Y" } */
foo (i);
else
__builtin_abort ();
if (int arr[] = { 1, 2, 3}; arr[0]) /* { dg-warning "if declarations before C2Y" } */
foo (arr[0]);
else
__builtin_abort ();
if (register int i = 0; i); /* { dg-warning "if declarations before C2Y" } */
if (static int i = 0; i); /* { dg-warning "if declarations before C2Y" } */
if (_Atomic int i = 0; i); /* { dg-warning "if declarations before C2Y" } */
double i;
}
int
main ()
{
simple ();
expr ();
}
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