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PR/39923: Valery Ushakov: trek(6) can spin, consuming 100% CPU on powerpc

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On systems where char is unsigned the number of black holes can end up being
very large (instead of negative).
This commit is contained in:
christos 2008-11-14 21:10:44 +00:00
parent 7dbfda5cca
commit e62c26811d
1 changed files with 6 additions and 3 deletions
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9
games/trek/setup.c
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@ -1,4 +1,4 @@
/* $NetBSD: setup.c,v 1.8 2003/08/07 09:37:54 agc Exp $ */ /* $NetBSD: setup.c,v 1.9 2008/11/14 21:10:44 christos Exp $ */
/* /*
* Copyright (c) 1980, 1993 * Copyright (c) 1980, 1993
@ -34,7 +34,7 @@
#if 0 #if 0
static char sccsid[] = "@(#)setup.c 8.1 (Berkeley) 5/31/93"; static char sccsid[] = "@(#)setup.c 8.1 (Berkeley) 5/31/93";
#else #else
__RCSID("$NetBSD: setup.c,v 1.8 2003/08/07 09:37:54 agc Exp $"); __RCSID("$NetBSD: setup.c,v 1.9 2008/11/14 21:10:44 christos Exp $");
#endif #endif
#endif /* not lint */ #endif /* not lint */
@ -234,11 +234,14 @@ setup()
for (i = 0; i < NQUADS; i++) for (i = 0; i < NQUADS; i++)
for (j = 0; j < NQUADS; j++) for (j = 0; j < NQUADS; j++)
{ {
short s5;
q = &Quad[i][j]; q = &Quad[i][j];
q->klings = q->bases = 0; q->klings = q->bases = 0;
q->scanned = -1; q->scanned = -1;
q->stars = ranf(9) + 1; q->stars = ranf(9) + 1;
q->holes = ranf(3) - q->stars / 5; q->holes = ranf(3);
s5 = q->stars / 5;
q->holes = q->holes > s5 ? q->holes - s5 : 0;
q->qsystemname = 0; q->qsystemname = 0;
} }