[Bug libstdc++/21295] Configuring g++ library for various locales ?

["jpr at essi dot fr" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From jpr at essi dot fr  2005-04-30 18:45 -------
Subject: Re:  Configuring g++ library for various locales
 ?

pinskia at gcc dot gnu dot org wrote:

>------- Additional Comments From pinskia at gcc dot gnu dot org  2005-04-30 14:56 -------
>What option are you taking about?
>
>The standard way of changing the locale is either by the LC_*/LANG environment variable or using the 
>locale class.
>
>  
>
I know that. I am precisely trying to use the locale class !

Here is my test program

//-------------------------------------------------------
#include <locale>
#include <iostream>
using namespace std;

int main(int argc, char *argv[])
{
    char *loc = "";
    if (argc > 1) loc = argv[1];

    cout << "Trying locale : " << loc << endl;
    locale::global(locale(loc));
    return 0;
}
//-------------------------------------------------------

If I compile it with g++-3.4 or g++-4.0.0, the compilation is fine, but 
at run time I get an std::runtime_error if I try any locale except C and 
POSIX ! For instance

5-kheops% locale fr_FR
Trying locale : fr_FR
terminate called after throwing an instance of 'std::runtime_error'
  what():  locale::facet::_S_create_c_locale name not valid
zsh: abort      locale fr_FR
5-kheops%

or

5-kheops% locale de_DE
Trying locale : de_DE
terminate called after throwing an instance of 'std::runtime_error'
  what():  locale::facet::_S_create_c_locale name not valid
zsh: abort      locale de_DE
5-kheops%

But, if I compile this programm with g++-3.3.2, it does not throw.  And 
the locales are corrrectly installed on my machine and setlocale() works 
with C...

Thus I guessed (maybe wrongly) that it had something to do with my 
configuration when building gcc-3.4 and gcc-4 ,

Any help would be appreciated.
Best regards

Jean-Paul Rigault





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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21295