std::time_put_byname
From cppreference.com
| Defined in header <locale>
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| template< class CharT, class OutputIterator = std::ostreambuf_iterator<CharT> > class time_put_byname : public std::time_put<CharT, OutputIterator>; |
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std::time_put_byname is a std::time_put facet which encapsulates time and date formatting rules of the locale specified at its construction.
Two specializations are provided by the standard library
| Defined in header
<locale> | |
| std::time_put_byname<char, OutputIterator> | narrow/multibyte time formatting |
| std::time_put_byname<wchar_t, OutputIterator> | wide string time formatting |
Member types
| Member type | Definition |
char_type
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CharT
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iter_type
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OutputIterator
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Member functions
| (constructor) |
constructs a new time_put_byname facet (public member function) |
| (destructor) |
destroys a time_put_byname facet (protected member function) |
std::time_put_byname::time_put_byname
| explicit time_put_byname( const char* name, std::size_t refs = 0 ); |
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| explicit time_put_byname( const std::string& name, std::size_t refs = 0 ); |
(since C++11) | |
Constructs a new std::time_put_byname facet for a locale with name.
refs is used for resource management: if refs == 0, the implementation destroys the facet, when the last std::locale object holding it is destroyed. Otherwise, the object is not destroyed.
Parameters
| name | - | the name of the locale |
| refs | - | the number of references that link to the facet |
std::time_put_byname::~time_put_byname
| protected: ~time_put_byname(); |
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Destroys the facet.
Inherited from std::time_put
Member objects
| Member name | Type |
id (static)
|
std::locale::id |
Member functions
invokes do_put (public member function of std::time_put<CharT,OutputIt>) |
Protected member functions
| [virtual] |
formats date/time and writes to output stream (virtual protected member function of std::time_put<CharT,OutputIt>) |
Example
This example prints current time using the "C" locale with the time_put facet replaced by various std::time_put_byname facets
Run this code
#include <iostream> #include <ctime> #include <iomanip> #include <codecvt> int main() { std::time_t t = std::time(nullptr); std::wbuffer_convert<std::codecvt_utf8<wchar_t>> conv(std::cout.rdbuf()); std::wostream out(&conv); out.imbue(std::locale(out.getloc(), new std::time_put_byname<wchar_t>("ja_JP"))); out << std::put_time(std::localtime(&t), L"%A %c") << '\n'; out.imbue(std::locale(out.getloc(), new std::time_put_byname<wchar_t>("ru_RU.utf8"))); out << std::put_time(std::localtime(&t), L"%A %c") << '\n'; out.imbue(std::locale(out.getloc(), new std::time_put_byname<wchar_t>("sv_SE.utf8"))); out << std::put_time(std::localtime(&t), L"%A %c") << '\n'; }
Possible output:
木曜日 2012年08月09日 21時41分02秒 Четверг Чт. 09 авг. 2012 21:41:02 torsdag tor 9 aug 2012 21:41:02
See also
| formats contents of struct std::tm for output as character sequence (class template) |