virtual iter_type do_get_month(iter_type first, iter_type last,
ios_base& x, ios_base::iostate& st, tm *pt) const;
The virtual protected member function endeavors to match sequential elements beginning at first
in the sequence
[first, last)
until it has recognized a complete, nonempty month input field. If successful, it converts this field to
its equivalent value as the component tm::tm_mon
, and stores the result in pt->tm_mon
. It returns an iterator
designating the first element beyond the month input field. Otherwise, the function sets ios_base::failbit
in st
. It
returns an iterator designating the first element beyond any prefix of a valid month input field. In either case, if the return
value equals last
, the function sets ios_base::eofbit
in st
.
The month input field is a sequence that matches the longest of a set of locale-specific sequences, such as Jan
,
January
, Feb
, February
. The converted value is the number of months since January.