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## Struct template optimize_multikey_is_true

boost::intrusive::optimize_multikey_is_true

## Synopsis

    // In header: <boost/intrusive/hashtable.hpp>

    template<typename T>
    struct optimize_multikey_is_true {
      // member classes/structs/unions
      template<bool Add>
      struct two_or_three {

        // public data members
        unspecified _;
      };

      // public static functions
      template<typename U> static unspecified test(...);
      template<typename U> static two_or_three< U::optimize_multikey > test(int);

      // public data members
      static const bool value;
    };

## Description

### `optimize_multikey_is_true` public static functions

1.     template<typename U> static unspecified test(...);

2.     template<typename U> static two_or_three< U::optimize_multikey > test(int);