| // |
| // Copyright (c) 2009-2011 Artyom Beilis (Tonkikh) |
| // |
| // Distributed under the Boost Software License, Version 1.0. (See |
| // accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| // |
| |
| // vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4 filetype=cpp.doxygen |
| /*! |
| \page working_with_multiple_locales Working with multiple locales |
| |
| Boost.Locale allows you to work safely with multiple locales in the same process. As we mentioned before, the locale |
| generation process is not a cheap one. Thus, when we work with multiple locales and need to switch between them, |
| we recommend that you create all the locales you need when the program starts. |
| |
| To simplify this process, the boost::locale::generator class has an option to cache all |
| generated locales. With this option, when you create a locale that was previously generated, it would be fetched |
| from the existing locale set instead. This operation is thread safe. |
| |
| This option must be explicitly enabled by calling the \ref boost::locale::generator::locale_cache_enabled() "locale_cache_enabled" member function of boost::locale::generator with \c true as the parameter. |
| |
| |
| For example: |
| |
| \code |
| generator gen; |
| gen.locale_cache_enabled(true); |
| gen("en_US.UTF-8"); |
| gen("de_DE.UTF-8"); |
| gen("ja_JP.UTF-8"); |
| // Create all locales |
| |
| std::locale en=gen("en_US.UTF-8"); |
| // Fetch an existing locale from the cache |
| std::locale ar=gen("ar_EG.UTF-8"); |
| // Because ar_EG not in the cache, a new locale is generated (and cached) |
| \endcode |
| |
| Then these locales can be imbued to \c iostreams or used directly as parameters to various functions. |
| |
| |
| |
| */ |
| |
| |
