When should I use std::map in C++11?
You should use std::map when you need a sorted associative container that stores key-value pairs.
What are the advantages of using std::map over std::unordered_map?
The main advantage of std::map is that it maintains order based on keys, which allows for range queries.
Are there any performance considerations I should be aware of?
Yes, std::map has O(log n) complexity for insertions and lookups, while std::unordered_map has average O(1) complexity.
Can I use custom types as keys in std::map?
Yes, you can use custom types as keys, but you need to provide a comparison function.
What happens if I try to insert a duplicate key?
In std::map, inserting a duplicate key will not change the existing value; it will simply be ignored.
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