------- Additional Comments From jpr at essi dot fr 2005-05-01 06:10 -------
Subject: Re: Configuring g++ library for various locales
?
pcarlini at suse dot de wrote:
>------- Additional Comments From pcarlini at suse dot de 2005-04-30 21:24
>-------
>For that kind of GNU x86-linux platform we have, literally, thousands of
>succesful reports, everything is supposed to work well out-of-the-box. In
>particular, the GNU locale model, supporting named locales is selected
>automatically, by default.
>
>I can try to help you a bit figuring out what's wrong with your specific
>setup but this isn't really our job, here, sorry.
>
>
I understand this, but I also understant that we are all committed to
improve the quality of the free tools we use :-)
>Anyway, are you building GCC? You should do that if you want to double check
>that the right (GNU) locale model is actually used. You can check whether
>this is the case by ooking at c++locale.h header in your install directory,
>under /include/c++/4.0.0/i686-pc-linux-gnu/bits. Close to the beginning of
>the file you should find something like:
>
>#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
>namespace __gnu_cxx
>{
> extern "C" __typeof(uselocale) __uselocale;
>}
>#endif
>
>Then, we can actually understand whether the problem begins at GCC configure
>and build time.
>
>
>
That's the point, I do not have these lines (I attach my c++locale.h
from my 4.0.0 by=uild, since it is short).
Jean-Paul Rigault
// Wrapper for underlying C-language localization -*- C++ -*-
// Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
//
// ISO C++ 14882: 22.8 Standard locale categories.
//
// Written by Benjamin Kosnik <[EMAIL PROTECTED]>
#ifndef _C_LOCALE_H
#define _C_LOCALE_H 1
#pragma GCC system_header
#include <clocale>
#include <cstring> // get std::strlen
#include <cstdio> // get std::snprintf or std::sprintf
#define _GLIBCXX_NUM_CATEGORIES 0
namespace std
{
typedef int* __c_locale;
// Convert numeric value of type _Tv to string and return length of
// string. If snprintf is available use it, otherwise fall back to
// the unsafe sprintf which, in general, can be dangerous and should
// be avoided.
template<typename _Tv>
int
__convert_from_v(char* __out,
const int __size __attribute__((__unused__)),
const char* __fmt,
_Tv __v, const __c_locale&, int __prec)
{
char* __old = std::setlocale(LC_NUMERIC, NULL);
char* __sav = NULL;
if (std::strcmp(__old, "C"))
{
__sav = new char[std::strlen(__old) + 1];
std::strcpy(__sav, __old);
std::setlocale(LC_NUMERIC, "C");
}
#ifdef _GLIBCXX_USE_C99
const int __ret = std::snprintf(__out, __size, __fmt, __prec, __v);
#else
const int __ret = std::sprintf(__out, __fmt, __prec, __v);
#endif
if (__sav)
{
std::setlocale(LC_NUMERIC, __sav);
delete [] __sav;
}
return __ret;
}
}
#endif
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21295
