std::flat_map
std::flat_map
is a sorted associative container that combines the features of a map and a flat container. Similar to std::map
, it allows you to store key-value pairs, and the keys are unique and ordered. However, unlike std::map
, which is typically implemented as a balanced binary search tree, std::flat_map
is implemented as a flat container, often based on a sorted std::vector
container. This means that std::flat_map
offers efficient memory usage and faster iteration times than traditional tree-based associative containers such as std::map
. Elements in a std::flat_map
container are stored contiguously in memory, which can lead to better cache locality and improved performance for certain use cases.
std::flat_map
provides functionality and interface similar to std::map
, allowing you to perform operations such as insertion, deletion, and searching while maintaining the elements in a sorted order. It’s beneficial when you need both the advantages of sorted storage...