Effects: Writes characters to
s
according to the format specified by a
moneypunct<charT, Intl>
facet reference
mp
and the character mapping specified by a
ctype<charT>
facet reference
ct
obtained from the locale returned by
str.getloc(),
and
str.flags(). The argument
units
is transformed into a sequence of wide characters as if by
ct.widen(buf1, buf1 + sprintf(buf1, "%.0Lf", units), buf2)
for character buffers
buf1
and
buf2. If the first character in
digits
or
buf2
is equal to
ct.widen('-'),
then the pattern used for formatting is the result of
mp.neg_format();
otherwise the pattern is the result of
mp.pos_format(). Digit characters are written, interspersed with any thousands separators
and decimal point specified by the format, in the order they appear
(after the optional leading minus sign)
in
digits
or
buf2. In
digits,
only the optional leading minus sign and the immediately subsequent
digit characters (as classified according to
ct)
are used; any trailing characters (including digits appearing
after a non-digit character) are ignored
.