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Use MAP_FAILED in the return values description.

This commit is contained in:
kleink 1998-06-03 22:03:44 +00:00
parent f8acb6d6fa
commit 503358cd49
1 changed files with 12 additions and 2 deletions
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14
lib/libc/sys/mmap.2
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@ -1,4 +1,4 @@
.\" $NetBSD: mmap.2,v 1.14 1998/03/28 16:58:58 kleink Exp $ .\" $NetBSD: mmap.2,v 1.15 1998/06/03 22:03:44 kleink Exp $
.\" .\"
.\" Copyright (c) 1991, 1993 .\" Copyright (c) 1991, 1993
.\" The Regents of the University of California. All rights reserved. .\" The Regents of the University of California. All rights reserved.
@ -163,9 +163,19 @@ should be done.
Upon successful completion, Upon successful completion,
.Nm mmap .Nm mmap
returns a pointer to the mapped region. returns a pointer to the mapped region.
Otherwise, a value of -1 is returned and Otherwise, a value of
.Dv MAP_FAILED
is returned and
.Va errno .Va errno
is set to indicate the error. is set to indicate the error.
The symbol
.Dv MAP_FAILED
is defined in the header
.Ao Pa sys/mman.h Ac .
No successful return from
.Fn mmap
will return the value
.Dv MAP_FAILED .
.Sh ERRORS .Sh ERRORS
.Fn Mmap .Fn Mmap
will fail if: will fail if: