C++ Standard Library Overview
All C++ library entities are declared or defined in one or more standard headers. This implementation includes two additional headers,
<hash_set>, that are not required by the C++ Standard. For a complete list of headers that this implementation supports, see Header Files Reference.
A freestanding implementation of the C++ library provides only a subset of these headers:
The C++ library headers have two broader subdivisions:
This section contains the following sections:
For more information about Visual C++ run-time libraries, see CRT Library Features.