munmap(2) [opendarwin man page]

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

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

     The munmap() system call will fail if:

     [EINVAL]		The addr argument was not page aligned, the len argument was zero or 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() system call first appeared in 4.4BSD.

BSD
								   May 27, 1994 							       BSD