Question

I’d like to create a map with an int and my own custom class. Is there a way to do this?

map<int, MyClass> myMap;

If not, how do I go about accomplishing this? Basically, I want an id(or preferably an enum) to point to my own custom class. In most other languages, this would be a simple hash.

Answer 1

#include <map>

std::map<int, MyClass> myMap;

MyClass foo;
myMap[5] = foo;
myMap[5].bar = 10;

You do need MyClass to be default- and copy- constructible, so it can be created (if you use, e.g., myMap[5]) and copied into the map.