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- /* Copyright (C) 1993 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- 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., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #include <math.h>
- #include "ieee754.h"
-
- /* Break VALUE into a normalized fraction and an integral power of 2. */
-
- double
- frexp (value, exp)
- double value;
- int *exp;
- {
- if (value == 0)
- {
- *exp = 0;
- return 0;
- }
- else
- {
- union ieee754_double u;
- u.d = value;
- *exp = u.ieee.exponent - 1022;
- u.ieee.exponent = 1022;
- return u.d;
- }
- }
-