stdlib/lcong48_r.c

   1 /* Copyright (C) 1995-2022 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <stdint.h>
  19 #include <stdlib.h>
  20 #include <string.h>
  21 #include <limits.h>
  22
  23 int
  24 __lcong48_r (unsigned short int param[7], struct drand48_data *buffer)
  25 {
  26   /* Store the given values.  */
  27   memcpy (buffer->__x, &param[0], sizeof (buffer->__x));
  28   buffer->__a = ((uint64_t) param[5] << 32 | (uint32_t) param[4] << 16
  29                  | param[3]);
  30   buffer->__c = param[6];
  31   buffer->__init = 1;
  32
  33   return 0;
  34 }
  35 weak_alias (__lcong48_r, lcong48_r)