Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/coroutines/torture/co-yield-02-loop.C @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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// { dg-do run } // Test co_yield in a loop with no local state. #include "../coro.h" // boiler-plate for tests of codegen #include "../coro1-ret-int-yield-int.h" int gX = 1; struct coro1 f () noexcept { for (gX = 5; gX < 10 ; gX++) { PRINTF ("f: about to yield %d\n", gX); co_yield gX; } PRINT ("f: about to return 6174"); co_return 6174; } int main () { PRINT ("main: create coro1"); struct coro1 f_coro = f (); PRINT ("main: got coro1 - resuming (1)"); if (gX != 1) { PRINTF ("main: gX is wrong : %d, should be 1\n", gX); abort (); } if (f_coro.handle.done()) abort(); f_coro.handle.resume(); PRINT ("main: after resume (1)"); int y = f_coro.handle.promise().get_value(); if (y != 5) { PRINTF ("main: got %d not 5.\n",y); abort (); } PRINT ("main: gX OK -- looping"); do { y = f_coro.handle.promise().get_value(); if (y != gX) { PRINTF ("main: got %d not %d.\n",y, gX); abort (); } PRINTF ("main: gX : %d \n", gX); f_coro.handle.resume(); } while (!f_coro.handle.done()); y = f_coro.handle.promise().get_value(); if ( y != 6174 ) abort (); PRINT ("main: apparently got 6174"); if (!f_coro.handle.done()) { PRINT ("main: apparently not done..."); abort (); } PRINT ("main: returning"); return 0; }