This is the mail archive of the gcc-bugs@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

[Bug c++/67371] Never executed "throw" in constexpr function fails to compile


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67371

Иван Молодецких <yalterz at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |yalterz at gmail dot com

--- Comment #14 from Иван Молодецких <yalterz at gmail dot com> ---
(In reply to Matthijs van Duin from comment #13)
> This is still not working for me in g++ 6 and 7:
> 
> constexpr void foo( bool ok ) {
>         if( ok )
>                 return;
>         throw;
> }
> 
> In function ‘constexpr void foo(bool)’:
> error: expression ‘<throw-expression>’ is not a constant-expression
> 
> 
> Rewriting the code as:
> 
> constexpr void foo( bool ok ) {
>         if( ok )
>                 return;
>         else
>                 throw;
> }
> 
> gets rid of the error, but this can be really awkward to do in more
> complicated functions.

Confirming this, was wondering why GCC couldn't compile my project while Clang
and MSVC could, and changing the code according to this comment fixed it.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]