Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/coroutines/co-yield-syntax-08-needs-expr.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-additional-options "-fsyntax-only -w" } // Check syntax for missing expr in a coroutine context. #include "coro.h" struct DummyYield { coro::coroutine_handle<> handle; DummyYield () : handle (nullptr) {} DummyYield (coro::coroutine_handle<> handle) : handle (handle) {} struct dummy_yield { coro::suspend_never initial_suspend() { return {}; } coro::suspend_never final_suspend() { return {}; } DummyYield get_return_object() { return DummyYield (coro::coroutine_handle<dummy_yield>::from_promise (*this)); } void yield_value (int v) {} void return_value (int v) {} void unhandled_exception() { /*std::terminate();*/ }; }; }; template<> struct coro::coroutine_traits<DummyYield> { using promise_type = DummyYield::dummy_yield; }; DummyYield bar () { co_yield; // { dg-error {expected primary-expression before} } co_return 0; } int main (int ac, char *av[]) { DummyYield x = bar (); return 0; }