This header was originally in the C standard library as <ctype.h>. This header is part of the

This header is part of the thread support library

This header is part of the date and time library.

This header is part of the general utility library.

This header is part of the Input/output library.

This header was originally in the C standard library as <tgmath.h>. This header is part of the

This header contains forward declarations for the Input/output

This header is part of the containers library.

This header is part of the containers library.

This header is part of the type support library.