[Bug c++/112377] Implement -Walloc-size in c++

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112377

Eric Gallager <egallager at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |egallager at gcc dot gnu.org

--- Comment #2 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to David Binderman from comment #0)
> Following on from discussion in bug report 112347,
> in file gcc/c-family/c.opt, is the new text
> 
> Walloc-size
> C ObjC Var(warn_alloc_size) Warning LangEnabledBy(C ObjC, Wextra)
> Warn when allocating insufficient storage for the target type of the
> assigned pointer.
> 
> IMHO, it should say:
> 
> Walloc-size
> C ObjC Var(warn_alloc_size) Warning LangEnabledBy(C ObjC C++, Wextra)
> Warn when allocating insufficient storage for the target type of the
> assigned pointer.
> 
> I think that should be enough to implement the new warning for C++.

If adding it to C++, then IMO it ought to be enabled for ObjC++, too, since the
current implementation is for both C and ObjC.