[C++ PATCH] c++: Poor diagnostic for dynamic_cast in constexpr context [PR93414]
Marek Polacek
polacek@redhat.com
Sat Jan 25 23:50:00 GMT 2020
On Fri, Jan 24, 2020 at 10:39:14PM -0500, Jason Merrill wrote:
> [C++ PATCH] c++: is unnecessarily redundant, you can just write [PATCH].
True enough, I've dropped --subject-prefix from my git patch alias.
> On 1/24/20 6:20 PM, Marek Polacek wrote:> I neglected to add a proper
> diagnostic for the reference dynamic_cast> case when the operand of a
> dynamic_cast doesn't refer to a public base> of Derived, resulting in
> suboptimal error message>
> > error: call to non-'constexpr' function 'void* __cxa_bad_cast()'
> >
> > Tested x86_64-linux, ok for trunk?
>
> OK.
Thanks.
Marek
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