67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
/* Test of splitting a double into fraction and mantissa.
|
|
Copyright (C) 2007-2025 Free Software Foundation, Inc.
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
|
|
|
|
#include <config.h>
|
|
|
|
#include <math.h>
|
|
|
|
#include "signature.h"
|
|
SIGNATURE_CHECK (frexp, double, (double, int *));
|
|
|
|
#include <float.h>
|
|
|
|
#include "isnand-nolibm.h"
|
|
#include "minus-zero.h"
|
|
#include "infinity.h"
|
|
#include "nan.h"
|
|
#include "macros.h"
|
|
|
|
/* Avoid some warnings from "gcc -Wshadow".
|
|
This file doesn't use the exp() function. */
|
|
#undef exp
|
|
#define exp exponent
|
|
|
|
#undef INFINITY
|
|
#undef NAN
|
|
|
|
#define DOUBLE double
|
|
/* The use of 'volatile' guarantees that excess precision bits are dropped
|
|
when dealing with denormalized numbers. It is necessary on x86 systems
|
|
where double-floats are not IEEE compliant by default, to avoid that the
|
|
results become platform and compiler option dependent. 'volatile' is a
|
|
portable alternative to gcc's -ffloat-store option. */
|
|
#define VOLATILE volatile
|
|
#define ISNAN isnand
|
|
#define INFINITY Infinityd ()
|
|
#define NAN NaNd ()
|
|
#define L_(literal) literal
|
|
#define MINUS_ZERO minus_zerod
|
|
#define MAX_EXP DBL_MAX_EXP
|
|
#define MIN_EXP DBL_MIN_EXP
|
|
#define MIN_NORMAL_EXP DBL_MIN_EXP
|
|
#define FREXP frexp
|
|
#define RANDOM randomd
|
|
#include "test-frexp.h"
|
|
|
|
int
|
|
main ()
|
|
{
|
|
test_function ();
|
|
|
|
return test_exit_status;
|
|
}
|