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C++ Locale Library - has_facet
Description
It is used to check if locale has facet and returns whether facet Facet is present in locale loc.
Declaration
Following is the declaration for std::has_facet.
C++98
template <class Facet> bool has_facet (const locale& loc) throw();
C++11
template <class Facet> bool has_facet (const locale& loc) noexcept;
Parameters
loc − It is a locale object.
Return Value
It returns whether facet Facet is present in locale loc.
Exceptions
No-throw guarantee − this function never throws exceptions.
Data races
It has accessed by Argument loc, and the returned object may be used to access facet object.
locale.htm
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