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UNISTD(3) Library Functions Manual UNISTD(3)

unistdstandard symbolic constants and types

#include <unistd.h>

The <unistd.h> header forms the basis of the Portable Operating System Interface for Unix (POSIX) API. It includes definitions for numerous functions, symbolic constants, and types. Among these are:

limits(3), stddef(3), stdint(3), stdlib(3), types(3)

The <unistd.h> header conforms to IEEE Std 1003.1-2001 (“POSIX.1”).

August 9, 2011 NetBSD-7.0.1