24 lines
1.1 KiB
C
24 lines
1.1 KiB
C
/* Split a 'long double' into fraction and mantissa, for hexadecimal printf.
|
|
Copyright (C) 2007, 2009-2023 Free Software Foundation, Inc.
|
|
|
|
This file 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.
|
|
|
|
This file 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 this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
/* Write a finite, positive number x as
|
|
x = mantissa * 2^exp
|
|
where exp >= LDBL_MIN_EXP - 1,
|
|
mantissa < 2.0,
|
|
if x is not a denormalized number then mantissa >= 1.0.
|
|
Store exp in *EXPPTR and return mantissa. */
|
|
extern long double printf_frexpl (long double x, int *expptr);
|