Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/g++.dg/coroutines/torture/local-var-3.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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/g++.dg/coroutines/torture/local-var-3.C Thu Feb 13 11:34:05 2020 +0900 @@ -0,0 +1,65 @@ +// { dg-do run } + +// Test modifying a local var and yielding several instances of it. + +#include "../coro.h" + +// boiler-plate for tests of codegen +#include "../coro1-ret-int-yield-int.h" + +struct coro1 +f (int start) noexcept +{ + int value = start; + PRINT ("f: about to yield start"); + co_yield start; + + value -= 31; + PRINT ("f: about to yield (value-31)"); + co_yield value; + + value += 6163; + PRINT ("f: about to return (value+6163)"); + co_return value; +} + +int main () +{ + PRINT ("main: create coro1"); + struct coro1 x = f (42); + PRINT ("main: got coro1 - resuming (1)"); + if (x.handle.done()) + abort(); + x.handle.resume(); + PRINT ("main: after resume (1)"); + int y = x.handle.promise().get_value(); + if ( y != 42 ) + abort (); + PRINT ("main: apparently got 42 - resuming (2)"); + if (x.handle.done()) + abort(); + x.handle.resume(); + PRINT ("main: after resume (2)"); + y = x.handle.promise().get_value(); + if ( y != 11 ) + abort (); + PRINT ("main: apparently got 11 - resuming (3)"); + if (x.handle.done()) + { + PRINT ("main: done?"); + abort(); + } + x.handle.resume(); + PRINT ("main: after resume (2) checking return"); + y = x.handle.promise().get_value(); + if ( y != 6174 ) + abort (); + PRINT ("main: apparently got 6174"); + if (!x.handle.done()) + { + PRINT ("main: apparently not done..."); + abort (); + } + PRINT ("main: returning"); + return 0; +}