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OpenDarwin 7.2.1 - man page for munmap (opendarwin section 2)

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MUNMAP(2)			     BSD System Calls Manual				MUNMAP(2)

NAME
     munmap -- remove a mapping

SYNOPSIS
     #include <sys/types.h>
     #include <sys/mman.h>

     int
     munmap(caddr_t addr, size_t len);

DESCRIPTION
     The munmap() system call deletes the mappings for the specified address range, and causes
     further references to addresses within the range to generate invalid memory references.

RETURN VALUES
     Upon successful completion, munmap returns zero.  Otherwise, a value of -1 is returned and
     errno is set to indicate the error.

ERRORS
     Munmap() will fail if:

     [EINVAL]		The addr parameter was not page aligned, the len parameter was negative,
			or some part of the region being unmapped is not part of the currently
			valid address space.

SEE ALSO
     getpagesize(3), msync(2), munmap(2), mprotect(2), madvise(2), mincore(2)

HISTORY
     The munmap() function first appeared in 4.4BSD.

BSD					  April 15, 1994				      BSD
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