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Explain what max is and handle i reaching it again.

This commit is contained in:
joerg 2015-04-16 13:31:03 +00:00
parent e2d874fb89
commit 0057d0442d
1 changed files with 15 additions and 7 deletions
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22
usr.bin/make/job.c
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@ -1,4 +1,4 @@
/* $NetBSD: job.c,v 1.179 2015/04/16 11:39:23 joerg Exp $ */
/* $NetBSD: job.c,v 1.180 2015/04/16 13:31:03 joerg Exp $ */
/*
* Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@ -70,14 +70,14 @@
*/
#ifndef MAKE_NATIVE
static char rcsid[] = "$NetBSD: job.c,v 1.179 2015/04/16 11:39:23 joerg Exp $";
static char rcsid[] = "$NetBSD: job.c,v 1.180 2015/04/16 13:31:03 joerg Exp $";
#else
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)job.c 8.2 (Berkeley) 3/19/94";
#else
__RCSID("$NetBSD: job.c,v 1.179 2015/04/16 11:39:23 joerg Exp $");
__RCSID("$NetBSD: job.c,v 1.180 2015/04/16 13:31:03 joerg Exp $");
#endif
#endif /* not lint */
#endif
@ -1878,10 +1878,18 @@ end_loop:
(void)fflush(stdout);
}
}
assert(i < max);
/* shift the remaining characters down */
(void)memmove(job->outBuf, &job->outBuf[i + 1], max - (i + 1));
job->curPos = max - (i + 1);
/*
* max is the last offset still in the buffer. Move any remaining
* characters to the start of the buffer and update the end marker
* curPos.
*/
if (i < max) {
(void)memmove(job->outBuf, &job->outBuf[i + 1], max - (i + 1));
job->curPos = max - (i + 1);
} else {
assert(i == max);
job->curPos = 0;
}
}
if (finish) {
/*