Re: [boost] [Locale] does generator("") deliver the system's default locale?

Subject: Re: [boost] [Locale] does generator("") deliver the system's default locale?
From: Artyom Beilis (artyomtnk_at_[hidden])
Date: 2013-07-22 07:58:26

Hello,

When the Boost.Locale is used for number formatting you need to use appropriate
manipulators

cout.imbue(locale_generated_by_boost_locale);

cout << 10.23 << " " << boost::locale::as::number << 10.23 << std::endl;

Would deliver in de_AT locale

10.23 10,23

Boost locale does not alter the basic C locale formatting such that you will always
get for decimal point "." of the "C" locale. Rationale? 

http://www.boost.org/doc/libs/1_54_0/libs/locale/doc/html/std_locales.html#std_locales_common


Also it would allow to use characters like NBSP that can't be represented with a single char.

That is why you get generator("")).decimal_point() == '.'
 

Artyom Beilis
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----- Original Message -----
> From: Michael Schinner <Michael.Schinner_at_[hidden]>
> To: "boost_at_[hidden]" <boost_at_[hidden]>
> Cc: 
> Sent: Monday, July 22, 2013 11:38 AM
> Subject: [boost] [Locale] does generator("") deliver the system's default
	locale?
> 
> boost 1.54.0
> When I use boost::locale::generator and generator("") I get different 
> results for the decimal point than using std::locale("").
> Boths methods are supposted to deliver the system's default locale.
> 
> Example:
> // windows 7, de_AT
> std::use_facet<std::numpunct<char> 
>> (std::locale("")).decimal_point(); //  delivers a ,
> boost::locale::generator generator;
> std::use_facet<std::numpunct<char> 
>> (generator("")).decimal_point(); // delivers a .
> 
> What does generator("")) deliver? Is it wanted that a '.' is 
> deliverd as decimal point for a german locale?
> 
> Best regards,
> Michael
> 
> 
> 
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