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  1. #include <map>
  2.  
  3.     class FSRVertex; // fwd
  4.  
  5.     template <class FSRVertex_Forward = FSRVertex> // make the fwd default type
  6.     class FSREdge_ {
  7.     public:
  8.         char fC;
  9.         FSRVertex_Forward fTarget;
  10.  
  11.         FSREdge_(char c, FSRVertex_Forward target)
  12.             :fC(c), fTarget(target)
  13.         {}
  14.  
  15.         FSREdge_(const FSREdge_ &other) // std::map requires copy ctor
  16.             :fC(other.fC), fTarget(other.fTarget)
  17.         {}
  18.  
  19.         FSREdge_() // std::map requires default ctor
  20.         {}
  21.     };
  22.  
  23.     typedef FSREdge_<> FSREdge; // so that you don't have to carry the brackets everywhere
  24.  
  25.     class FSRVertex {
  26.     public:
  27.         std::map<char, FSREdge> fOutEdges;
  28.         FSRVertex()
  29.             :fOutEdges()
  30.         {}
  31.     };
  32.  
  33. int main() {
  34. 	// your code goes here
  35.  
  36. 	FSRVertex vertex;
  37. 	FSREdge edge('a', vertex);
  38. 	vertex.fOutEdges['a'] = edge;
  39.  
  40. 	return 0;
  41. }
Success #stdin #stdout 0s 3412KB
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https://ideone.com/18k19l
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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