What is the std namespace in C++?
Namespaces in C++ (namespace) allow users to group named entities like classes, methods, variables and functions in a narrower namespace scope instead of using in the global scope. This prevents name conflicts between classes, methods, functions and variables in large projects. Namespaces organize the elements of developers into different logical scopes referred to by names. Thus, different users (or namespaces) may use same method names and variables in different running processes.
