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Deferences the data property associated with the element referenced by an associative iterator.
template<
    typename I
    >
typename result_of::deref_data<I>::type deref_data(I const& i);
Table 1.7. Parameters
| Parameter | Requirement | Description | 
|---|---|---|
| 
                     | Model of Associative Iterator | Operation's argument | 
deref_data(i);
          Return type: result_of::deref_data<I>::type
          Semantics: Dereferences the data property
          associated with the element referenced by an associative iterator i.
        
#include <boost/fusion/iterator/deref_data.hpp> #include <boost/fusion/include/deref_data.hpp>
typedefmap<pair<float, int&> > map; int i(0); map m(1.0f,i); assert(deref_data(begin(m)) == 0); assert(&(deref_data(begin(m))) == &i);