1 //  { dg-do run }
2 
3 // The simplest co_await we can do.
4 
5 #include "../coro.h"
6 
7 // boiler-plate for tests of codegen
8 #include "../coro1-ret-int-yield-int.h"
9 
10 int gX = 1;
11 
12 coro1
f()13 f ()
14 {
15   co_await coro1::suspend_always_prt{};
16   co_return gX + 10;
17 }
18 
main()19 int main ()
20 {
21   PRINT ("main: create coro1");
22   struct coro1 f_coro = f ();
23   PRINT ("main: got coro1 - checking gX");
24   if (gX != 1)
25     {
26       PRINTF ("main: gX is wrong : %d, should be 1\n", gX);
27       abort ();
28     }
29   if (f_coro.handle.done())
30     {
31       PRINT ("main: we should not be 'done' [1]");
32       abort ();
33     }
34   PRINT ("main: resuming [1] initial suspend");
35   f_coro.handle.resume();
36   PRINT ("main: resuming [2] co_await");
37   f_coro.handle.resume();
38   /* we should now have returned with the co_return (15) */
39   if (!f_coro.handle.done())
40     {
41       PRINT ("main: we should be 'done' ");
42       abort ();
43     }
44   int y = f_coro.handle.promise().get_value();
45   if (y != 11)
46     {
47       PRINTF ("main: y is wrong : %d, should be 11\n", y);
48       abort ();
49     }
50   puts ("main: done");
51   return 0;
52 }
53