Viewing file:  pr95599.C (1.76 KB) -rw-r--r--
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// { dg-do run }
// The simplest co_await we can do.
#include "coro.h"
// boiler-plate for tests of codegen
#include "coro1-ret-int-yield-int.h"
int counter = 0;
int a, b, c, d;
int e, f, g;
struct suspend_always_order {
suspend_always_order (int *v) {
PRINT ("susp-always-order-ctor-value"); *v = counter++;
}
suspend_always_order () { PRINT ("susp-always-order-ctor"); }
constexpr bool await_ready() const noexcept { return false; }
void await_suspend(coro1::handle_type) const noexcept { PRINT ("susp-always-order-susp");}
void await_resume() const noexcept { PRINT ("susp-always-order-resume");}
~suspend_always_order() { PRINT ("susp-always-order-dtor"); }
};
coro1
my_coro ()
{
(a = counter++, b = counter++, co_await suspend_always_order(&c), d = counter++);
co_await (e = counter++, suspend_always_order (&f));
co_return (g = counter++, 10);
}
int main ()
{
auto f_coro = my_coro ();
if (f_coro.handle.done())
{
PRINT ("main: we should not be 'done' [1]");
abort ();
}
PRINT ("main: resuming [1] initial suspend");
f_coro.handle.resume();
PRINT ("main: resuming [2] co_await");
f_coro.handle.resume();
PRINT ("main: resuming [3] co_await");
f_coro.handle.resume();
/* we should now have returned with the co_return */
if (!f_coro.handle.done())
{
PRINT ("main: we should be 'done' ");
abort ();
}
int y = f_coro.handle.promise().get_value();
if (y != 10)
{
PRINTF ("main: y is wrong : %d, should be 10\n", y);
abort ();
}
if (a != 0 || b != 1 || c != 2 || d != 3
|| e != 4 || f != 5 || g != 6 )
{
PRINTF ("something happened in the wrong order %d, %d, %d, %d, %d, %d, %d\n", a, b, c, d, e, f, g);
abort ();
}
puts ("main: done");
return 0;
}
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