/* Test of splitting a double into fraction and mantissa.
- Copyright (C) 2007-2008 Free Software Foundation, Inc.
+ Copyright (C) 2007-2011 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
#include <math.h>
+#include "signature.h"
+SIGNATURE_CHECK (frexp, double, (double, int *));
+
#include <float.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "isnand.h"
+#include "isnand-nolibm.h"
+#include "minus-zero.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
-#define ASSERT(expr) \
- do \
- { \
- if (!(expr)) \
- { \
- fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
- fflush (stderr); \
- abort (); \
- } \
- } \
- while (0)
-
static double
my_ldexp (double x, int d)
{
{ /* Negative zero. */
int exp = -9999;
double mantissa;
- x = -0.0;
+ x = minus_zerod;
mantissa = frexp (x, &exp);
ASSERT (exp == 0);
ASSERT (mantissa == x);