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Define MAP_FAILED, a symbolic constant which evaluates to the value returned

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by mmap(2) upon failure.
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kleink 1998-06-03 21:52:40 +00:00
parent 52450409d6
commit e39ca9bf6f
1 changed files with 6 additions and 1 deletions
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7
sys/sys/mman.h
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@ -1,4 +1,4 @@
/* $NetBSD: mman.h,v 1.18 1998/05/30 22:18:56 kleink Exp $ */
/* $NetBSD: mman.h,v 1.19 1998/06/03 21:52:40 kleink Exp $ */
/*-
* Copyright (c) 1982, 1986, 1993
@ -79,6 +79,11 @@ typedef _BSD_SIZE_T_ size_t;
#define MAP_FILE 0x0000 /* map from file (default) */
#define MAP_ANON 0x1000 /* allocated from memory, swap space */
/*
* Error indicator returned by mmap(2)
*/
#define MAP_FAILED ((void *) -1) /* mmap() failed */
/*
* Flags to msync
*/