numpunct Class
A template class that describes an object that can serve as a local facet to describe the sequences of type CharType used to represent information about the formatting and punctuation of numeric and Boolean expressions.
For a list of all members of this type, see numpunct Members.
template <class CharType>
class numpunct : public locale::facet
Remarks
As with any locale facet, the static object ID has an initial stored value of zero. The first attempt to access its stored value stores a unique positive value in id.
Requirements
Header: <locale>
Namespace: std