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## Struct template is_node_index<boost::interprocess::unordered_map_index< MapConfig >>

boost::interprocess::is_node_index<boost::interprocess::unordered_map_index< MapConfig >>

## Synopsis

    // In header: <boost/interprocess/indexes/unordered_map_index.hpp>

    template<typename MapConfig>
    struct is_node_index<boost::interprocess::unordered_map_index< MapConfig >> {

      enum @7 { value =  true };
    };

## Description

@ Trait class to detect if an index is a node index. This allows more efficient operations when deallocating named objects.