Writing software can often be a complex and nuanced task, especially when dealing with data structures like maps in C++. The standard library of C++ provides us with the std::map, which is an associative container that stores elements formed by a combination of a key value and a mapped value, following a specific order.
Std::map is a useful tool for holding key-value pairs in a way that allows a program to quickly look up the value related to a particular key. It does this by automatically sorting its entries by key. Map is commonly used when we need to maintain the data in the form of some sort of key-value pair or if there is uniqueness in our data. They are typically used when searching for values in a dictionary-like way.
Let’s explore how to print a std::map
Often, you might want to print out the contents of a std::map to check its content. This can be done in a straightforward manner using a loop in C++. It is accomplished by iterating over the map using an iterator, and printing each key-value pair until the end of the map is reached.