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-rw-r--r--stdlib/srand48_r.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/stdlib/srand48_r.c b/stdlib/srand48_r.c
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+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#include <stdlib.h>
+
+int
+srand48_r (seedval, buffer)
+ long seedval;
+ struct drand48_data *buffer;
+{
+ /* Be generous for the arguments, detect some errors. */
+ if (buffer == NULL)
+ {
+ errno = EFAULT;
+ return -1;
+ }
+
+ /* The standards say we only have 32 bits. */
+ if (sizeof (long) > 4)
+ seedval &= 0xffffffffl;
+
+ if (sizeof (unsigned short int) == 2)
+ {
+ buffer->X[2] = seedval >> 16;
+ buffer->X[1] = seedval & 0xffffl;
+ buffer->X[0] = 0x330e;
+ }
+ else
+ {
+ buffer->X[2] = seedval;
+ buffer->X[1] = 0x330e0000;
+ buffer->X[0] = 0;
+ }
+
+ return 0;
+}