Re: [Boost-users] Boost 1.49 Locale Conversion failed

Subject: Re: [Boost-users] Boost 1.49 Locale Conversion failed
From: Artyom Beilis (artyomtnk_at_[hidden])
Date: 2012-07-10 06:27:44

The locale name should be "en_US.UTF-8" or "ru_RU.UTF-8", the default UTF-8 locale is for
default system locale "".

When you set locale as "en" it assumes that encoding (as not specified) is US-ASCII and conversion fails.

 
Artyom Beilis
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>________________________________
> From: NtVisigoth <ntvisigoth_at_[hidden]>
>To: boost-users_at_[hidden] 
>Sent: Tuesday, July 10, 2012 12:36 PM
>Subject: [Boost-users] Boost 1.49 Locale Conversion failed
> 
>
>Hello, everyone!
>
>
>I have already answred here: http://lists.boost.org/boost-users/2012/07/75097.php
>But previous latter badly typed.
>
>
>When using boost::locale with the russian language of the string in UTF-8 encoding I get an error while getting the locale.
>An exception with the message e.what(): "Conversion failed" is thrown
>
>
>My code is not very different from that in the examples:
>
>
>#define  TR(S)  boost::locale::translate(S).str()
>const std::string strDefaultLangId( "en" );
>int main( int argc, char * argv[] )
>{
>    using namespace std;
>    using namespace boost::locale;
>    int exitCode = EXIT_SUCCESS;
>    try
>    {
>        generator gen;
>        gen.add_messages_path("g:\\source\\boost_locale\\languages\\");
>        gen.add_messages_domain("messages");
>        std::string language( argc == 2 ? argv[1] : strDefaultLangId.c_str() );
>        std::locale loc = gen( language );
>        locale::global( loc );
>        std::wstring s = TR(L"hello world");
>        wcout << s << endl;
>    }
>    catch( exception& e )
>    {
>        cout << "Error : " << e.what() << endl;
>        exitCode = EXIT_FAILURE;
>    }
>    catch( ... )
>    {
>        cout << "Unknown error" << endl;
>        exitCode = EXIT_FAILURE;
>    }
>    return exitCode;
>}
>
>
>
>
>The path to the file with the russian language: "g:\source\boost_locale\languages\ru\LC_MESSAGES\messages.mo"
>
>
>What could be wrong?
>* Is it necessary to use the backends?
>* Is it yet necessary to call imbue on the stream? But I'd like avoid it because I am going to write the log using glog. 
>
>Compillers : Microsoft Visual Studio 2008 and 2010 
>Boost version : 1.49
>
>
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