[Bug c++/101149] New: Coroutine compiler error with ternary operator
victor.burckel at gmail dot com
gcc-bugzilla@gcc.gnu.org
Mon Jun 21 11:16:17 GMT 2021
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101149
Bug ID: 101149
Summary: Coroutine compiler error with ternary operator
Product: gcc
Version: 11.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: victor.burckel at gmail dot com
Target Milestone: ---
Hello,
I'm getting a compiler error when trying to use co_await expression in a
ternary operator:
> internal compiler error: in expand_expr_real_1, at expr.c:10285
See on godbolt https://godbolt.org/z/Wfva333cc
#include <coroutine>
#include <vector>
#include <string>
struct task {
struct promise_type {
auto initial_suspend() noexcept { return std::suspend_always{}; }
auto final_suspend() noexcept { return std::suspend_always{}; }
void return_value(int) {}
task get_return_object() { return task{}; }
void unhandled_exception() noexcept {}
};
~task() noexcept {}
bool await_ready() const noexcept { return false; }
void await_suspend(std::coroutine_handle<>) noexcept {}
int await_resume() noexcept { return 1; }
};
task f(int)
{
co_return 1;
}
task g(bool b)
{
auto result = b ? co_await f(1) : 2;
}
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