The header <iomanip> defines several functions that support extractors and inserters that allow for the parsing and formatting of sequences and values for money and time.
template <class moneyT> unspecified get_money(moneyT& mon, bool intl = false);
Requires: The type moneyT shall be either long double or a specialization of the basic_string template (Clause [strings]).
Returns: An object of unspecified type such that if in is an object of type basic_istream<charT, traits> then the expression in >> get_money(mon, intl) behaves as if it called f(in, mon, intl), where the function f is defined as:
template <class charT, class traits, class moneyT>
void f(basic_ios<charT, traits>& str, moneyT& mon, bool intl) {
using Iter = istreambuf_iterator<charT, traits>;
using MoneyGet = money_get<charT, Iter>;
ios_base::iostate err = ios_base::goodbit;
const MoneyGet& mg = use_facet<MoneyGet>(str.getloc());
mg.get(Iter(str.rdbuf()), Iter(), intl, str, err, mon);
if (ios_base::goodbit != err)
str.setstate(err);
}
The expression in >> get_money(mon, intl) shall have type basic_istream<charT, traits>& and value in.
template <class moneyT> unspecified put_money(const moneyT& mon, bool intl = false);
Requires: The type moneyT shall be either long double or a specialization of the basic_string template (Clause [strings]).
Returns: An object of unspecified type such that if out is an object of type basic_ostream<charT, traits> then the expression out << put_money(mon, intl) behaves as a formatted output function that calls f(out, mon, intl), where the function f is defined as:
template <class charT, class traits, class moneyT>
void f(basic_ios<charT, traits>& str, const moneyT& mon, bool intl) {
using Iter = ostreambuf_iterator<charT, traits>;
using MoneyPut = money_put<charT, Iter>;
const MoneyPut& mp = use_facet<MoneyPut>(str.getloc());
const Iter end = mp.put(Iter(str.rdbuf()), intl, str, str.fill(), mon);
if (end.failed())
str.setstate(ios::badbit);
}
The expression out << put_money(mon, intl) shall have type basic_ostream<charT, traits>& and value out.
template <class charT> unspecified get_time(struct tm* tmb, const charT* fmt);
Requires: The argument tmb shall be a valid pointer to an object of type struct tm. The argument fmt shall be a valid pointer to an array of objects of type charT with char_traits<charT>::length(fmt) elements.
Returns: An object of unspecified type such that if in is an object of type basic_istream<charT, traits> then the expression in >> get_time(tmb, fmt) behaves as if it called f(in, tmb, fmt), where the function f is defined as:
template <class charT, class traits>
void f(basic_ios<charT, traits>& str, struct tm* tmb, const charT* fmt) {
using Iter = istreambuf_iterator<charT, traits>;
using TimeGet = time_get<charT, Iter>;
ios_base::iostate err = ios_base::goodbit;
const TimeGet& tg = use_facet<TimeGet>(str.getloc());
tg.get(Iter(str.rdbuf()), Iter(), str, err, tmb,
fmt, fmt + traits::length(fmt));
if (err != ios_base::goodbit)
str.setstate(err);
}
The expression in >> get_time(tmb, fmt) shall have type basic_istream<charT, traits>& and value in.
template <class charT> unspecified put_time(const struct tm* tmb, const charT* fmt);
Requires: The argument tmb shall be a valid pointer to an object of type struct tm, and the argument fmt shall be a valid pointer to an array of objects of type charT with char_traits<charT>::length(fmt) elements.
Returns: An object of unspecified type such that if out is an object of type basic_ostream<charT, traits> then the expression out << put_time(tmb, fmt) behaves as if it called f(out, tmb, fmt), where the function f is defined as:
template <class charT, class traits>
void f(basic_ios<charT, traits>& str, const struct tm* tmb, const charT* fmt) {
using Iter = ostreambuf_iterator<charT, traits>;
using TimePut = time_put<charT, Iter>;
const TimePut& tp = use_facet<TimePut>(str.getloc());
const Iter end = tp.put(Iter(str.rdbuf()), str, str.fill(), tmb,
fmt, fmt + traits::length(fmt));
if (end.failed())
str.setstate(ios_base::badbit);
}
The expression out << put_time(tmb, fmt) shall have type basic_ostream<charT, traits>& and value out.
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