/* Test of splitting a 'long double' into fraction and mantissa.
- Copyright (C) 2007-2008 Free Software Foundation, Inc.
+ Copyright (C) 2007-2009 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 "fpucw.h"
#include "isnanl-nolibm.h"
+#include "nan.h"
/* Avoid some warnings from "gcc -Wshadow".
This file doesn't use the exp() function. */
#define exp exponent
#define ASSERT(expr) \
- do \
- { \
- if (!(expr)) \
- { \
+ do \
+ { \
+ if (!(expr)) \
+ { \
fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
- fflush (stderr); \
- abort (); \
- } \
- } \
+ fflush (stderr); \
+ abort (); \
+ } \
+ } \
while (0)
/* On MIPS IRIX machines, LDBL_MIN_EXP is -1021, but the smallest reliable
/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
So we use minus_zero instead.
+ IRIX cc can't put -0.0L into .data, but can compute at runtime.
Note that the expression -LDBL_MIN * LDBL_MIN does not work on other
platforms, such as when cross-compiling to PowerPC on MacOS X 10.5. */
#if defined __hpux || defined __sgi
-long double minus_zero = -LDBL_MIN * LDBL_MIN;
+static long double
+compute_minus_zero (void)
+{
+ return -LDBL_MIN * LDBL_MIN;
+}
+# define minus_zero compute_minus_zero ()
#else
long double minus_zero = -0.0L;
#endif
{ /* NaN. */
int exp = -9999;
long double mantissa;
- x = 0.0L / 0.0L;
+ x = NaNl ();
mantissa = frexpl (x, &exp);
ASSERT (isnanl (mantissa));
}