Difference between revisions of "cpp/locale/messages byname"
From cppreference.com
(+) |
m (r2.7.3) (Robot: Adding de, es, fr, it, ja, pt, ru, zh) |
||
| Line 78: | Line 78: | ||
{{dcl list template | cpp/locale/dcl list messages}} | {{dcl list template | cpp/locale/dcl list messages}} | ||
{{dcl list end}} | {{dcl list end}} | ||
| + | |||
| + | [[de:cpp/locale/messages byname]] | ||
| + | [[es:cpp/locale/messages byname]] | ||
| + | [[fr:cpp/locale/messages byname]] | ||
| + | [[it:cpp/locale/messages byname]] | ||
| + | [[ja:cpp/locale/messages byname]] | ||
| + | [[pt:cpp/locale/messages byname]] | ||
| + | [[ru:cpp/locale/messages byname]] | ||
| + | [[zh:cpp/locale/messages byname]] | ||
Revision as of 18:35, 2 November 2012
Template:ddcl list begin <tr class="t-dsc-header">
<td>Defined in header
</td>
<locale>
<td></td> <td></td> </tr> <tr class="t-dcl ">
<td class="t-dcl-nopad">template< class CharT >
class messages_byname : public std::messages<CharT>;
</td>
class messages_byname : public std::messages<CharT>;
<td class="t-dcl-nopad"> </td> <td class="t-dcl-nopad"> </td> </tr> Template:ddcl list end
std::messages_byname is a std::messages facet which encapsulates retrieval of strings from message catalogs of the locale specified at its construction.
Two specializations are provided by the standard library
| Defined in header
<locale> | |
| std::messages_byname<char> | narrow/multibyte message catalog access |
| std::messages_byname<wchar_t> | wide string message catalog access |
Contents |
Member types
| Member type | Definition |
catalog
|
std::messages_base<CharT>::catalog
|
string_type
|
std::basic_string<CharT>
|
Member functions
| constructs a new messages_byname facet (public member function) | |
| destructs a messages_byname facet (protected member function) |
Inherited from std::messages
Member types
| Member type | Definition |
char_type
|
CharT
|
string_type
|
std::basic_string<CharT> |
Member objects
| Member name | Type |
id (static)
|
std::locale::id |
Member functions
invokes do_open (public member function of std::messages<CharT>)
| |
invokes do_get (public member function of std::messages<CharT>)
| |
invokes do_close (public member function of std::messages<CharT>)
|
Protected member functions
| [virtual] |
opens a named message catalog (virtual protected member function of std::messages<CharT>)
|
| [virtual] |
retrieves a message from an open message catalog (virtual protected member function of std::messages<CharT>)
|
| [virtual] |
closes a message catalog (virtual protected member function of std::messages<CharT>)
|
Example
Run this code
#include <iostream> #include <locale> void try_with(const std::locale& loc) { const std::messages<char>& facet = std::use_facet<std::messages<char> >(loc) ; std::messages<char>::catalog cat = facet.open("sed", std::cout.getloc()); if(cat < 0 ) std::cout << "Could not open german \"sed\" message catalog\n"; else std::cout << "\"No match\" " << facet.get(cat, 0, 0, "No match") << '\n' << "\"Memory exhausted\" " << facet.get(cat, 0, 0, "Memory exhausted") << '\n'; facet.close(cat); } int main() { std::locale loc("en_US.utf8"); std::cout.imbue(loc); try_with(std::locale(loc, new std::messages_byname<char>("de_DE.utf8"))); try_with(std::locale(loc, new std::messages_byname<char>("fr_FR.utf8"))); try_with(std::locale(loc, new std::messages_byname<char>("ja_JP.utf8"))); }
Possible output:
"No match" Keine Übereinstimmung "Memory exhausted" Speicher erschöpft "No match" Pas de concordance "Memory exhausted" Mémoire épuisée "No match" 照合しません "Memory exhausted" メモリーが足りません
