Struct template has_pointer_plus_2_bits

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## Struct template has_pointer_plus_2_bits

boost::intrusive::has_pointer_plus_2_bits

## Synopsis

    template<typename VoidPointer, std::size_t Alignment>
    struct has_pointer_plus_2_bits {
      static const bool value;
    };

## Description

This trait class is used to know if a pointer can embed 2 extra bits of information if it's going to be used to point to objects with an alignment of "Alignment" bytes.