boost::locale::generator::use_ansi_encoding bug: gives the unexpected result on Win7 Chinese.

[316293804@…]

boost::locale::generator gen; gen.use_ansi_encoding(true); strLocaleName = std::use_facet<boost::locale::info>( gen("")).name(); gen.use_ansi_encoding(false); strLocaleName = std::use_facet<boost::locale::info>( gen("")).name();

strLocaleName always "zh_CN.UTF-8", why i can't get "zh_CN.GB2312" ? I want to convert wstring to string.Milestone But string = boost::locale::conv::from_utf(wstring, gen("")); is same with string = boost::locale::conv::from_utf(wstring, gen("UTF-8")); so it gives the unexpected result.

And why get_system_locale give the expected result ? get_system_locale(true); "zh_CN.UTF-8" get_system_locale(false); "zh_CN.windows-936"

So I have to use this code, boost::locale::generator gen; strCodePage = boost::locale::util::get_system_locale(); string = boost::locale::conv::from_utf( wstring,

std::use_facet<boost::locale::info>(gen(strCodePage)).encoding());

Is this a bug of boost::locale::generator::use_ansi_encoding ?

[anonymous]

Sorry, the format is chaos. Follow is the right format:

void f()

{

boost::locale::generator gen;

std::string strLocaleName;

gen.use_ansi_encoding(true);

strLocaleName = std::use_facet<boost::locale::info>( gen("")).name();

gen.use_ansi_encoding(false);

strLocaleName = std::use_facet<boost::locale::info>( gen("")).name();

}

strLocaleName always "zh_CN.UTF-8",

why i can't get "zh_CN.GB2312" ?

I want to convert wstring to string.

But

string = boost::locale::conv::from_utf(wstring, gen(""));

is same with

string = boost::locale::conv::from_utf(wstring, gen("UTF-8"));

so it gives the unexpected result.

And why get_system_locale give the expected result ?

get_system_locale(true); "zh_CN.UTF-8"

get_system_locale(false); "zh_CN.windows-936"

So I have to use this code,

boost::locale::generator gen;

strCodePage = boost::locale::util::get_system_locale();

string = boost::locale::conv::from_utf( wstring,

std::use_facet<boost::locale::info>(gen(strCodePage)).encoding());

Is this a bug of boost::locale::generator::use_ansi_encoding ?

[Artyom Beilis]

What backends are compiled in? Does ICU compiled in? Does std backend compiled in? What compiler?

Note: winapi backend (which is default on windows if ICU is not present) does not support ANSI encoding. So you need to specify std backend explicitly or use ICU.

[anonymous]

Thanks, I was complied in VS2010,and not use ICU. But follow ways not to specify std backend explicitly. Only to use locale("");

1.

setlocale(LC_CTYPE,"");
wcstombs(string, wstring, _MAX_FNAME);

2.

std::locale sys_locale("");
std::use_facet<std::codecvt<wchar_t,char, mbstate_t> >(sys_locale).out(...);

[anonymous]

Replying to artyom:

What backends are compiled in? Does ICU compiled in? Does std backend compiled in? What compiler?

Note: winapi backend (which is default on windows if ICU is not present) does not support ANSI encoding. So you need to specify std backend explicitly or use ICU.

Thanks, I was complied in VS2010,and not use ICU. But follow ways not to specify std backend explicitly. Only to use locale("");

1.

setlocale(LC_CTYPE,"");
wcstombs(string, wstring, _MAX_FNAME);

2.

std::locale sys_locale("");
std::use_facet<std::codecvt<wchar_t,char, mbstate_t> >(sys_locale).out(...);