boost::algorithm::is_classified — is_classified predicate
unspecified is_classified(std::ctype_base::mask Type, const std::locale & Loc = std::locale());
Construct the is_classified predicate. This predicate holds if the input is of specified std::ctype category.
is_classified
std::ctype
Parameters
A locale used for classification
A std::ctype category
Returns: An instance of the is_classified predicate
