How to make map with two kwys. I am using struct. Code: struct Key { char * gi; char * offset; Key(const char * _gi, const char * _offset) { gi = new char [strlen(_gi) + 1]; strcpy(gi, _gi); offset = new char [strlen(_offset) + 1]; strcpy(offset, _offset); } ~Key() { if (gi != NULL) { delete [] gi; gi = NULL; } if (offset != NULL) { delete [] offset; offset = NULL; } } }; struct Value { char * orient; char * allele ; Value(const char * _orient, const char * _allele) { orient = new char [strlen(_orient) + 1]; strcpy(orient, _orient); allele = new char [strlen(_allele) + 1]; strcpy(allele, _allele); } ~Value() { if (orient != NULL) { delete [] orient; orient = NULL; } if (allele != NULL) { delete [] allele; allele = NULL; } } }; struct ltstr { bool operator()(const Key* _lhs, const Key* _rhs) const { return (strcmp(_lhs->gi,_rhs->gi) > 0 && strcmp(_lhs->offset,_rhs->offset) ); } }; Key key ("34", "abcd"); Value value ("sdf", "asdf"); n.insert(dbmap::value_type(&key,&value)); When i try to retrieve the keys and values using iterator to map, i am not getting anything. Can you tell me where i am wrong? I will be really thankful if you can help me. Regards Man
