diff options
Diffstat (limited to 'stdlib/rand_r.c')
-rw-r--r-- | stdlib/rand_r.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/stdlib/rand_r.c b/stdlib/rand_r.c deleted file mode 100644 index ca681e8b53..0000000000 --- a/stdlib/rand_r.c +++ /dev/null @@ -1,48 +0,0 @@ -/* Reentrant random function from POSIX.1c. - Copyright (C) 1996-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. - - 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, see - <http://www.gnu.org/licenses/>. */ - -#include <stdlib.h> - - -/* This algorithm is mentioned in the ISO C standard, here extended - for 32 bits. */ -int -rand_r (unsigned int *seed) -{ - unsigned int next = *seed; - int result; - - next *= 1103515245; - next += 12345; - result = (unsigned int) (next / 65536) % 2048; - - next *= 1103515245; - next += 12345; - result <<= 10; - result ^= (unsigned int) (next / 65536) % 1024; - - next *= 1103515245; - next += 12345; - result <<= 10; - result ^= (unsigned int) (next / 65536) % 1024; - - *seed = next; - - return result; -} |