[Bug c++/126406] [16/17 Regression] __is_nothrow_invocable crashes gcc

"ppalka at gcc dot gnu.org via Gcc-bugs" <[email protected]> Mon, 27 Jul 2026 13:56:17 +0000

Newsgroups	gmane.comp.gcc.bugs
Message-ID	<[email protected]/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126406

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=119343
           Assignee|unassigned at gcc dot gnu.org      |ppalka at gcc dot gnu.org
                 CC|                            |ppalka at gcc dot gnu.org
           Keywords|                            |rejects-valid
             Status|NEW                         |ASSIGNED

--- Comment #3 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Not specific to __is_nothrow_invocable:

template<class T> auto f(T) { }
template<class T> void g(T) noexcept (noexcept(T())) { }

static_assert(f<int>); // incorrectly rejected
static_assert(g<int>); // ICE