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Re: PR 12242 g++ should warn about out-of-range int->enum conversions

From: Mark Mitchell <mark at codesourcery dot com>
To: Manuel López-Ibáñez <lopezibanez at gmail dot com>
Cc: Gcc Patch List <gcc-patches at gcc dot gnu dot org>
Date: Thu, 07 Aug 2008 12:55:14 -0700
Subject: Re: PR 12242 g++ should warn about out-of-range int->enum conversions
References: <6c33472e0808062209r47602f9fs694940ceb81c9903@mail.gmail.com>

Manuel López-Ibáñez wrote:

2008-08-07 Manuel Lopez-Ibanez <manu@gcc.gnu.org>

  PR 12242
cp/
  * typeck.c (buld_static_cast_1): Warn for out-of-range conversions to enum.
testsuite/
  * g++.dg/warn/pr12242.C: New.

I like the idea of this warning, but should this go in the conversion machinery in general, rather than in the build_static_cast_1 function? For example, do we (with -fpermissive) allow implicit conversion from integers to enums? If we do, then we would need this check in a more central location.

Thanks,

--
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713

Follow-Ups:
- Re: PR 12242 g++ should warn about out-of-range int->enum conversions
  - From: Manuel López-Ibáñez

References:
- PR 12242 g++ should warn about out-of-range int->enum conversions
  - From: Manuel López-Ibáñez

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