From cppreference.com
template<classCharT,classInputIt=std::istreambuf_iterator<CharT>>classtime_get;Class template std::time_get encapsulates date and time parsing rules. The I/O manipulator
uses the std::time_get facet of the I/O stream's locale to convert text input to a
object.
Inheritance diagram
If a std::time_get specialization is not guaranteed to be provided by the standard library (see below), the behaviors of its member functions (except the constructor and destructor) are not guaranteed as specified.
Specializations
The standard library is guaranteed to provide the following specializations (they are
required to be implemented by any locale object
):
std::time_get<char>parses narrow string representations of date and time std::time_get<wchar_t>parses wide string representations of date and time In addition, the standard library is also guaranteed to provide every specialization that satisfies the following type requirements:
CharT is one of char and wchar_t, and
InputIt must meet the requirements of
.
Nested types
Type Definition char_typeCharTiter_typeInputItData members
Member functions
constructs a new time_get facet
(public member function)
destructs a time_get facet
(protected member function)
invokes do_date_order
(public member function)
invokes do_get_time
(public member function)
invokes do_get_date
(public member function)
invokes do_get_weekday
(public member function)
invokes do_get_monthname
(public member function)
invokes do_get_year
(public member function)
(C++11)
invokes do_get
(public member function)
Protected member functions
[virtual]
obtains preferred ordering of day, month, and year
(virtual protected member function)
[virtual]
extracts hours, minutes, and seconds from input stream
(virtual protected member function)
[virtual]
extracts month, day, and year from input stream
(virtual protected member function)
[virtual]
extracts the name of a day of the week from input stream
(virtual protected member function)
[virtual]
extracts a month name from input stream
(virtual protected member function)
[virtual]
extracts a year from input stream
(virtual protected member function)
[virtual](C++11)
extracts date/time components from input stream, according to the specified format
(virtual protected member function)
Inherited from
Nested types
Type Definition dateorderdate order enumeration type, defining the values no_order, dmy, mdy, ymd, and ydmExample
Note: choose clang to observe the output. libstdc++ does not correctly implement the %b specifier:
.
Run this code
#include<iomanip>#include<iostream>#include<locale>#include<sstream>intmain(){std::tmt={};std::istringstreamss("2011-Februar-18 23:12:34");ss.imbue(std::locale("de_DE.utf-8"));ss>>std::get_time(&t,"%Y-%b-%d %H:%M:%S");if(ss.fail())std::cout<<"Parse failed\n";elsestd::cout<<std::put_time(&t,"%c")<<'\n';}Possible output:
Sun Feb 18 23:12:34 2011 See also
formats contents of
for output as character sequence
(class template)
(C++11)
parses a date/time value of specified format
(function template)