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Showing content from http://en.cppreference.com/w/cpp/io/basic_stringbuf/../ios_base/../../locale/time_get/get_time.html below:

std::time_get<CharT,InputIt>::get_time, std::time_get<CharT,InputIt>::do_get_time - cppreference.com

1) Public member function, calls the protected virtual member function do_get_time of the most derived class.

2)

Reads successive characters from the sequence

[beg, end)

and parses out the time value following the same rules as the format specifier

"%H:%M:%S"

as used by the functions

std::get_time

time_get::get

, and the POSIX function

strptime()

The parsed time is stored in the corresponding fields of the std::tm structure pointed to by the argument t.

If the end iterator is reached before a valid time is read, the function sets std::ios_base::eofbit in err. If a parsing error is encountered, the function sets std::ios_base::failbit in err.

[edit] Parameters beg - iterator designating the start of the sequence to parse end - one past the end iterator for the sequence to parse str - a stream object that this function uses to obtain locale facets when needed, e.g. std::ctype to skip whitespace err - stream error flags object that is modified by this function to indicate errors t - pointer to the std::tm object that will hold the result of this function call [edit] Return value

Iterator pointing one past the last character in [beg, end) that was recognized as a part of a valid date.

[edit] Notes

For the alphabetic components of the default time format (if any), this function is usually case-insensitive.

If a parsing error is encountered, most implementations of this function leave *t unmodified.

[edit] Example

Output:

Parsing the time out of '21:40:11' in the locale ru_RU.utf8
Hours: 21, Minutes: 40, Seconds: 11
Parsing the time out of '21-40-11' in the locale ru_RU.utf8
Parse failed. Unparsed string: -40-11
Parsing the time out of '21æ37å58ç§' in the locale ja_JP.utf8
Hours: 21, Minutes: 37, Seconds: 58

[edit] Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR Applied to Behavior as published Correct behavior LWG 248 C++98 eofbit was not set upon reaching the end iterator sets eofbit if a valid time has not been read LWG 461 C++98 do_get_time needed to parse localized time representation parses with "%H:%M:%S" format [edit] See also parses a date/time value of specified format
(function template) [edit]

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