c++ - Access STL map by value -


i have problem accessing map value. not want access value using find("string_value"), find(s) while string s="string_value". see below:

map<string, string> my_map; string s; map<string, string>::iterator it_; for(it_ = my_map.begin(); it_!= my_map.end(); it_++) {   s = it_->second;   if (my_map.find(s) != my_map.end()) cout << my_map.find(s)->second << endl; }

my initial guess find() accepts const value while it_->second not. if map had value, if condition fails. there no compile time errors though. help?

you should boost, bimap class.

http://www.boost.org/doc/libs/1_42_0/libs/bimap/doc/html/index.html

this let make map both sides searchable.

regular stl maps searchable on key, not value.


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