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std::time_put_byname(3) C++ Standard Libary std::time_put_byname(3) NAME std::time_put_byname - std::time_put_byname Synopsis Defined in header <locale> template< class CharT, class OutputIterator = std::ostreambuf_itera- tor<CharT> > class time_put_byname : public std::time_put<CharT, OutputIterator>; 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 for- matting Member types Member type Definition char_type CharT iter_type OutputIterator 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 ); explicit time_put_byname( const std::string& name, std::size_t refs = (since C++11) 0 ); Constructs a new std::time_put_byname facet for a locale with name. refs is used for resource management: if refs == 0, the implementa- tion 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(); Destroys the facet. Inherited from std::time_put Member objects Member name Type id (static) std::locale::id Member functions put invokes do_put (public member function of std::time_put<CharT,OutputIt>) Protected member functions do_put formats date/time and writes to output stream [virtual] (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_by- name<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_by- name<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_by- name<wchar_t>("sv_SE.utf8"))); out << std::put_time(std::localtime(&t), L"%A %c") << '\n'; } Possible output: 20120809 214102 . 09 . 2012 21:41:02 torsdag tor 9 aug 2012 21:41:02 See also time_put formats contents of struct std::tm for output as character sequence (class template) http://cppreference.com 2022.07.31 std::time_put_byname(3)
NAME | Synopsis | Member types | Member functions | Parameters | Member objects | Member functions | Protected member functions | Example | Possible output: | See also
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