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            Returns the result type of map_tie.
          
template <typename K0, typename K1,... typename KN, typename D0, typename D1,... typename DN> struct map_tie;
For C++11 compilers, the variadic function interface has no upper bound.
            For C++03 compilers, the variadic function accepts 0
            to FUSION_MAX_MAP_SIZE
            elements, where FUSION_MAX_MAP_SIZE
            is a user definable predefined maximum that defaults to 10. You may define the preprocessor constant
            FUSION_MAX_MAP_SIZE before
            including any Fusion header to change the default. Example:
          
#define FUSION_MAX_MAP_SIZE 20
| Parameter | Requirement | Description | 
|---|---|---|
| 
                       | Any type | 
                      The key types for  | 
| 
                       | Any type | 
                      The arguments types for  | 
result_of::map_tie<K0, K1,... KN, D0, D1,... DN>::type;
            Return type: map<pair<K0, D0&>, pair<K1,
            D1&>,... pair<KN,
            DN&> >
          
            Semantics: Create a map of references from D0, D1,... DN with keys K0, K1,... KN
          
#include <boost/fusion/container/generation/map_tie.hpp> #include <boost/fusion/include/map_tie.hpp>
struct int_key; struct double_key; ... result_of::map_tie<int_key, double_key, int, double>::type