How do I use std::map::insert in C++17?

Can you explain how to use std::map::insert in C++17?

Sure! In C++17, std::map::insert is used to add elements to a map. You can insert a key-value pair using the syntax: map.insert({key, value});.

What happens if I try to insert a duplicate key?

If you try to insert a duplicate key, the insert operation will not change the existing element, and the map will remain unchanged.

Can I use std::pair with insert?

Yes, you can use std::pair! For example: map.insert(std::make_pair(key, value)); will also work.

Are there any performance considerations I should be aware of?

Yes, inserting into a map has a logarithmic time complexity. If you frequently insert elements, consider using std::unordered_map for better performance.