cpp/locale/time get/get date

@1@ Public member function, calls the protected virtual member function of the most derived class. @2@ Reads successive characters from the sequence and parses out the calendar date value using the default format expected by this locale, which is determined as

@@ as used by the functions std, get, and the POSIX function.

@@ The parsed date is stored in the corresponding fields of the std structure pointed to by the argument.

@@ If the end iterator is reached before a valid date is read, the function sets std in. If a parsing error is encountered, the function sets std in.

Return value
Iterator pointing one past the last character in that was recognized as a part of a valid date.