protected virtual member function
<locale>

std::moneypunct::do_frac_digits

int do_frac_digits() const;
Return fractional digits [virtual]
Virtual protected member function called by moneypunct::frac_digits to get the fractional digits.

Polymorphic derived classes can overwrite the behavior of this function.

See moneypunct::frac_digits for its default behavior in moneypunct.

See also

moneypunct::frac_digits
Return fractional digits (public member function )

C++