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comparison gcc/testsuite/g++.dg/coroutines/torture/co-await-11-forwarding.C @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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131:84e7813d76e9 145:1830386684a0
1 // { dg-do run }
2
3 // Test of forwarding a templated awaitable to co_await.
4
5 #include "../coro.h"
6
7 // boiler-plate for tests of codegen
8 #include "../coro1-ret-int-yield-int.h"
9
10 /* Valued with an await_transform. */
11
12 template< typename AWAITABLE >
13 coro1
14 test_fwd (AWAITABLE&& awaitable)
15 {
16 // the await_resume() just returns the saved int value.
17 int a = co_await std::forward<AWAITABLE>(awaitable);
18 // Which we co-return to the promise so that it can be
19 // retrieved.
20 co_return a;
21 }
22
23 int main ()
24 {
25 // We have an awaitable that stores the int it was constructed with.
26 coro1::suspend_always_intprt g(15);
27 struct coro1 g_coro = test_fwd (g);
28
29 PRINT ("main: resuming g [1] (initial suspend)");
30 g_coro.handle.resume();
31
32 PRINT ("main: resuming g [2] co_await");
33 g_coro.handle.resume();
34
35 int y = g_coro.handle.promise().get_value();
36 if (y != 15)
37 {
38 PRINTF ("main: y is wrong : %d, should be 15\n", y);
39 abort ();
40 }
41 puts ("main: done");
42 return 0;
43 }