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glibc  2.9
jrand48_r.c
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00001 /* Copyright (C) 1995, 1997, 1998, 2001, 2006 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <stdlib.h>
00021 
00022 int
00023 __jrand48_r (xsubi, buffer, result)
00024      unsigned short int xsubi[3];
00025      struct drand48_data *buffer;
00026      long int *result;
00027 {
00028   /* Compute next state.  */
00029   if (__drand48_iterate (xsubi, buffer) < 0)
00030     return -1;
00031 
00032   /* Store the result.  */
00033   *result = (int32_t) ((xsubi[2] << 16) | xsubi[1]);
00034 
00035   return 0;
00036 }
00037 weak_alias (__jrand48_r, jrand48_r)