[Bug c++/92652] function call to lambda expression that return true does not satisfy the constraint in requires-clause if using return type deduction

[boostcpp at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92652

--- Comment #2 from Ryou Ezoe <boostcpp at gmail dot com> ---
Yes. this is C++20 concepts .