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# Boost Input/Output Library

Header / Docs | Contents
--- | ---
`<boost/io_fwd.hpp>` | Forward declaration header.
`<boost/io/ios_state.hpp>` documentation | State-saving classes for various IOStream attributes.

## Rationale

The I/O sub-library of Boost helps segregate the large number of Boost headers. This sub-library should contain various items to use with/for the standard I/O library.

Revised: 26 Feb 2002