How to insert a set into stl?

Question

I'm having problems ... I'm not sure I understand the STL documentation. Let's say I have this:

#include <set> ... struct foo { int bar; }; struct comp { inline bool operator()(const foo& left,const foo& right) { return left.bar < right.bar; } }; int main() { std::set<foo,comp> fooset; // Uses comparison struct/class object comp to sort the container ... return 0; } 

How to insert struct foo into a set using my own comparator structure?

Answer 1

You can use the set::insert method, there is nothing more to do. For example,

 foo f1, f2; f1.bar = 10; f2.bar = 20; fooset.insert(f1); fooset.insert(f2);