diff options
Diffstat (limited to 'libc/stdlib/drand48.c')
-rw-r--r-- | libc/stdlib/drand48.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libc/stdlib/drand48.c b/libc/stdlib/drand48.c new file mode 100644 index 000000000..d18ff3f08 --- /dev/null +++ b/libc/stdlib/drand48.c @@ -0,0 +1,32 @@ +/* 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> + +/* Global state for non-reentrant functions. Defined in drand48-iter.c. */ +extern struct drand48_data __libc_drand48_data; + +double drand48 (void) +{ + double result; + + erand48_r (__libc_drand48_data.__x, &__libc_drand48_data, &result); + + return result; +} |