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

NAME
     munmap -- remove a	mapping

LIBRARY
     Standard C	Library	(libc, -lc)

SYNOPSIS
     #include <sys/mman.h>

     int
     munmap(void *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
     The munmap() function returns the value 0 if successful; otherwise	the
     value -1 is returned and the global variable errno	is set to indicate the
     error.

ERRORS
     Munmap() will fail	if:

     [EINVAL]		The addr parameter was not page	aligned, the len pa-
			rameter	was negative, or some part of the region being
			unmapped is outside the	valid address range for	a
			process.

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

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

BSD				 May 27, 1994				   BSD

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | HISTORY

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