Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

Global fd

boost::process::posix::fd

// In header: <boost/process/posix.hpp>

unspecified fd;

This property lets you modify file-descriptors other than the standard ones (0,1,2).

It provides the functions bind, which implements dup2 and close.

Close can also be called with a range of file-descriptors to be closed.