C++ Map is the dictionary-type associative container, also known as holder objects in the C++ STL. The Maps as the name suggests storing the values in a mapped fashion, i.e., key-value and a mapped value. However, while you can have the same mapped values, no two key values can be the same in a single map container. So, let’s see C++ Map in detail.

C++ Map example

The reason for this is attributed to the fact that the C++ map container uses the key values to store, identify, and sort the values in a map.

Also, internally, the elements in a map are sorted in a weak fashion depending upon the internal comparison tool. C++ Map containers support bidirectional iterators.

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