Re: [boost] [variant] regressions in GCC 2.95 --seemingly anMPL-relatedproblem

From: Joaquín Mª López Muñoz (joaquin_at_[hidden])
Date: 2004-10-25 08:33:52

The following is a somewhat shorter manifestation of the
problem.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Joaquín Mª López Muñoz ha escrito:

> I think I've reduced the problem Boost.Variant is
> having with GCC 2.95 (see for instance http://tinyurl.com/4sd7u
> and http://tinyurl.com/4dqqd)
>
> The attached snippet works OK for GCC 3.2 and other compilers,
> but ICEs on GCC 2.95, with the same problem shown in
> Boost.Variant.
>
> The culprit has to do with transform (and other MPL algoritmhs)
> dealing with expressions of the form:
>
> apply1<lambda<sizeof_<_1> >::type,_1>
>
> wich AFAIK are correct (otherwise somebody please correct me.)
>
> In case it is not possible to fix this in the MPL, I think I
> can hack a specific workaround for GCC 2.95 into the code
> of Boost.Variant, but I guess trying to fix MPL first is
> more sensible.
>
> HTH
>
> Joaquín M López Muñoz
> Telefónica, Investigación y Desarrollo
>
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