shorthand syntax for c++ map in map

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醉酒成梦 2020-12-06 01:34

If I have definitions like:

typedef map Foo_map_1
typedef map Foo_map_2
typedef map Foo_


      
      
        
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                   萌比男神i
                                             
                
                
                (楼主)
            
              
              
                2020-12-06 02:22
              

            
            
                        
This is seems easy enough even for the limited C++ metaprogramming power:

#include 
#include 

template
struct NMap { typedef std::map::type> type; };

template
struct NMap<1, K, V> { typedef std::map type; };

int main(int argc, const char *argv[]) {
    NMap<3, int, std::string>::type m;
    m[1][2][3] = "Test";
    return 0;
}

    
             
                                                        
            
            
              
                
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