Re: [boost] multi-index warnings

From: Marius Lazer (Marius.Lazer_at_[hidden])
Date: 2007-07-12 10:49:09

Joaquín,

I figured out the problem is in boost.hash which is used by multi-index. That #include alone compiles clean on both 1.31.1 and 1.34.0. I also compared the source code and lots of static_cast<> disappeared in 1.34.0.

Thanks,
Marius

-----Original Message-----
From: boost-bounces_at_[hidden] [mailto:boost-bounces_at_[hidden]] On Behalf Of Joaquín Mª López Muñoz
Sent: Thursday, July 12, 2007 10:43 AM
To: boost_at_[hidden]
Subject: Re: [boost] multi-index warnings

Hello Marius,

Marius Lazer ha escrito:

> All,
>
> I'm attempting to upgrade to boost_1_34_0 from boost_1_33_1 and I get
> the following warnings from a hashed_unique index. The same code
> compiles clean on boost_1_33_1 with gcc-4.1.1 and gcc-4.1.2.
>
> Am I doing something wrong or this is a deficiency introduced in 1_34_0?
>
> Thanks,
> Marius
>
> Sample code:
>
>            boost::multi_index::hashed_unique
>          <
>             boost::multi_index::tag<server>,
>             boost::multi_index::const_mem_fun
>             <
>                SessionLink,
>                int,
>                &SessionLink::serverFD
>             >
>            >
>
> Generated warnings:
>
> /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:353: warning:
> passing 'bool' chooses 'int' over 'long unsigned int'[...]

I think this problem is not actually related to Boost.MultiIndex, but
to Boost.Hash. Could you please try to compile the following

  // just including this
  #include <boost/functional/hash/hash.hpp>

both with Boost 1.33.1 and 1.34? Same behavior? Looking fwd
to your feedback.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

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