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Re: Warning about int<-->enum conversions?

From: Robert Dewar <dewar at gnat dot com>
To: Giovanni Bajo <giovannibajo at libero dot it>
Cc: gcc at gcc dot gnu dot org
Date: Thu, 08 Jul 2004 09:00:00 -0400
Subject: Re: Warning about int<-->enum conversions?
References: <Pine.LNX.4.60.0407081331070.30153@hermes-1.csi.cam.ac.uk> <ccjfos$kv7$1@sea.gmane.org>

Giovanni Bajo wrote:

No, because this is a kind of integer promotion which is allowed by the
standard ([conv.prom]/2), so there is nothing wrong about it. Converting the
other way (int -> enum) is instead forbidden and should be rejected by GCC.


But warnings are all *about* things that are allowed by the
standard but are still suspicious. To me, it is a dubious
design decision in the language to allow this promotion,
and I definitely think that a warning would be useful.

Follow-Ups:
- Re: Warning about int<-->enum conversions?
  - From: Gabriel Dos Reis

References:
- Warning about int<-->enum conversions?
  - From: Nicholas Nethercote
- Re: Warning about int<-->enum conversions?
  - From: Giovanni Bajo

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