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authorcgd <cgd@NetBSD.org>1993-03-21 09:45:37 +0000
committercgd <cgd@NetBSD.org>1993-03-21 09:45:37 +0000
commit77e3814f0c0e3dea4d0032e25666f77e6f83bfff (patch)
tree7eddfcbf3dd12089e71dc3fafb0a106c5c5766c7 /monop/roll.c
parente81d63576b2e46ab90da7d75fa155ea57ee4d32e (diff)
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initial import of 386bsd-0.1 sources
Diffstat (limited to 'monop/roll.c')
-rw-r--r--monop/roll.c74
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diff --git a/monop/roll.c b/monop/roll.c
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+/*
+ * Copyright (c) 1980 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)roll.c 5.5 (Berkeley) 6/1/90";
+#endif /* not lint */
+
+/*
+ * This routine rolls ndie nside-sided dice.
+ */
+
+# define reg register
+
+# if !defined(vax) && !defined(tahoe)
+# define MAXRAND 32767L
+
+roll(ndie, nsides)
+int ndie, nsides; {
+
+ reg long tot;
+ reg unsigned n, r;
+
+ tot = 0;
+ n = ndie;
+ while (n--)
+ tot += rand();
+ return (int) ((tot * (long) nsides) / ((long) MAXRAND + 1)) + ndie;
+}
+
+# else
+
+roll(ndie, nsides)
+reg int ndie, nsides; {
+
+ reg int tot, r;
+ reg double num_sides;
+
+ num_sides = nsides;
+ tot = 0;
+ while (ndie--)
+ tot += (r = rand()) * (num_sides / 017777777777) + 1;
+ return tot;
+}
+# endif