function template
template <class Facet> bool has_facet ( const locale& loc ) throw();

Check if locale has facet

Returns whether facet Facet is present in locale loc.


locale object.

The template parameter Facet shall be a facet type.
A facet type is a type publicly derived, directly or indirectly, from locale::facet with a static member id of type locale::id, such as the standard facets collate, codecvt, ctype, messages, moneypunct, money_get, money_put, numpunct, num_get, num_put, time_get and time_put.

Return type

true if Facet is a facet present in loc, false otherwise.

See also