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// { dg-do run }
// Test co-await in while condition.
#include "../coro.h"
// boiler-plate for tests of codegen
#include "../coro1-ret-int-yield-int.h"
/* An awaiter that suspends always and returns an int as the
await_resume output. */
struct IntAwaiter {
int v;
IntAwaiter (int _v) : v(_v) {}
bool await_ready () { return false; }
void await_suspend (coro::coroutine_handle<>) {}
int await_resume () { return v; }
};
struct coro1
coro_a (bool t)
{
int accum = 0;
for (int x = co_await IntAwaiter (3); x < 10; x++)
accum += x;
co_return accum;
}
struct coro1
coro_b (bool t)
{
int accum = 0;
int x;
for (x = co_await IntAwaiter (3); x < 10; x++)
accum += x;
co_return accum;
}
struct coro1
coro_c (bool t)
{
int accum = 0;
int x = 3;
for (co_await IntAwaiter (3); x < 10; x++)
accum += x;
co_return accum;
}
void
check_a_coro (struct coro1& x)
{
if (x.handle.done())
{
PRINT ("check_a_coro: apparently done when we shouldn't be...");
abort ();
}
PRINT ("check_a_coro: resume initial suspend");
x.handle.resume();
// will be false - so no yield expected.
PRINT ("check_a_coro: resume for init");
x.handle.resume();
int y = x.handle.promise().get_value();
if ( y != 42 )
{
PRINTF ("check_a_coro: apparently wrong value : %d\n", y);
abort ();
}
if (!x.handle.done())
{
PRINT ("check_a_coro: apparently not done...");
abort ();
}
}
int main ()
{
{
struct coro1 x = coro_a (false);
check_a_coro (x);
}
{
struct coro1 x = coro_b (false);
check_a_coro (x);
}
{
struct coro1 x = coro_c (false);
check_a_coro (x);
}
PRINT ("main: done");
return 0;
}
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