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Member "nano-4.5/lib/printf-frexp.h" (4 Oct 2019, 1073 Bytes) of package /linux/misc/nano-4.5.tar.xz:
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1 /* Split a double into fraction and mantissa, for hexadecimal printf.
2 Copyright (C) 2007, 2009-2019 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
17 /* Write a finite, positive number x as
18 x = mantissa * 2^exp
19 where exp >= DBL_MIN_EXP - 1,
20 mantissa < 2.0,
21 if x is not a denormalized number then mantissa >= 1.0.
22 Store exp in *EXPPTR and return mantissa. */
23 extern double printf_frexp (double x, int *expptr);