std::time_put (3) - Linux Manuals

std::time_put: std::time_put

NAME

std::time_put - std::time_put

Synopsis

Defined in header <locale>
template<
class CharT,
class OutputIt = std::ostreambuf_iterator<CharT>
> class time_put;

Class template std::time_put encapsulates date and time formatting rules. The I/O manipulator std::put_time uses the std::time_put facet of the I/O stream's locale to generate text representation of an std::tm object.
 std-time put-inheritance.svg
Inheritance diagram

Type requirements

-
OutputIt must meet the requirements of LegacyOutputIterator.

Specializations

Two standalone (locale-independent) full specializations and two partial specializations are provided by the standard library:

Defined in header <locale>
std::time_put<char> creates narrow string representations of date and time
std::time_put<wchar_t> creates wide string representations of date and time
std::time_put<char, OutputIt> creates narrow string representations of date and time using custom output iterator
std::time_put<wchar_t, OutputIt> creates wide string representations of date and time using custom output iterator

In addition, every locale object constructed in a C++ program implements its own (locale-specific) versions of these specializations.

Member types

Member type Definition
char_type CharT
iter_type OutputIt

Member functions

              constructs a new time_put facet
constructor (public member function)
              destructs a time_put facet
destructor (protected member function)
              invokes do_put
put (public member function)

Member objects

                          id of the locale
static std::locale::id id (public member object)

Protected member functions

do_put formats date/time and writes to output stream
          (virtual protected member function)
[virtual]

Example

// Run this code

  #include <iostream>
  #include <ctime>
  #include <iomanip>
  #include <codecvt>

  int main()
  {
      std::time_t t = std::time(NULL);
      std::wbuffer_convert<std::codecvt_utf8<wchar_t>> conv(std::cout.rdbuf());
      std::wostream out(&conv);
      out.imbue(std::locale("ja_JP.utf8"));
      // this I/O manipulator std::put_time uses std::time_put<wchar_t>
      out << std::put_time(std::localtime(&t), L"%A %c") << '\n';
  }

Output:

  水曜日 2011年11月09日 12時32分05秒