diff options
Diffstat (limited to 'libc/stdlib/srand48_r.c')
-rw-r--r-- | libc/stdlib/srand48_r.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/libc/stdlib/srand48_r.c b/libc/stdlib/srand48_r.c new file mode 100644 index 000000000..c0fa38e90 --- /dev/null +++ b/libc/stdlib/srand48_r.c @@ -0,0 +1,40 @@ +/* Copyright (C) 1995, 1996, 1997, 1998, 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu <mailto: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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stdlib.h> +#include <limits.h> + +int srand48_r (seedval, buffer) + long int seedval; + struct drand48_data *buffer; +{ + /* The standards say we only have 32 bits. */ + if (sizeof (long int) > 4) + seedval &= 0xffffffffl; + + buffer->__x[2] = seedval >> 16; + buffer->__x[1] = seedval & 0xffffl; + buffer->__x[0] = 0x330e; + + buffer->__a = 0x5deece66dull; + buffer->__c = 0xb; + buffer->__init = 1; + + return 0; +} |