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## Struct template is_reference_wrapper

boost::is_reference_wrapper — Determine if a type `T` is an instantiation of `reference_wrapper`.

## Synopsis

    // In header: <boost/core/ref.hpp>

    template<typename T>
    struct is_reference_wrapper {

      // public data members
      static bool value;
    };

## Description

The value static constant will be true if the type `T` is a specialization of `reference_wrapper`.