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2006-12-18 Jakub Jelinek <jakub@redhat.com> [BZ #3747] * stdlib/jrand48_r.c (__jrand48_r): Make sure result is in the [-231 .. 231) range. * stdlib/tst-rand48.c (main): Fix expected values for 64-bit targets. * stdlib/tst-rand48-2.c: New test. * stdlib/Makefile (tests): Add tst-rand48-2.
38 lines
1.3 KiB
C
38 lines
1.3 KiB
C
/* Copyright (C) 1995, 1997, 1998, 2001, 2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <stdlib.h>
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int
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__jrand48_r (xsubi, buffer, result)
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unsigned short int xsubi[3];
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struct drand48_data *buffer;
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long int *result;
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{
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/* Compute next state. */
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if (__drand48_iterate (xsubi, buffer) < 0)
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return -1;
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/* Store the result. */
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*result = (int32_t) ((xsubi[2] << 16) | xsubi[1]);
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return 0;
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}
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weak_alias (__jrand48_r, jrand48_r)
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