/* Test of multiplying a 'long double' by a power of 2.
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007-2011 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ 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 2, or (at your option)
- any later version.
+ 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
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, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
#include <math.h>
+#include "signature.h"
+SIGNATURE_CHECK (ldexpl, long double, (long double, int));
+
#include <float.h>
-#include <stdlib.h>
#include "fpucw.h"
#include "isnanl-nolibm.h"
-
-#define ASSERT(expr) if (!(expr)) abort ();
+#include "minus-zero.h"
+#include "infinity.h"
+#include "nan.h"
+#include "macros.h"
+
+#undef INFINITY
+#undef NAN
+
+#define DOUBLE long double
+#define ISNAN isnanl
+#define INFINITY Infinityl ()
+#define NAN NaNl ()
+#define L_(literal) literal##L
+#define MINUS_ZERO minus_zerol
+#define LDEXP ldexpl
+#define MIN_EXP LDBL_MIN_EXP
+#define MAX_EXP LDBL_MAX_EXP
+#include "test-ldexp.h"
int
main ()
{
- int i;
- long double x;
- long double y;
DECL_LONG_DOUBLE_ROUNDING
BEGIN_LONG_DOUBLE_ROUNDING ();
- { /* NaN. */
- x = 0.0L / 0.0L;
- y = ldexpl (x, 0); ASSERT (isnanl (y));
- y = ldexpl (x, 5); ASSERT (isnanl (y));
- y = ldexpl (x, -5); ASSERT (isnanl (y));
- }
-
- { /* Positive infinity. */
- x = 1.0L / 0.0L;
- y = ldexpl (x, 0); ASSERT (y == x);
- y = ldexpl (x, 5); ASSERT (y == x);
- y = ldexpl (x, -5); ASSERT (y == x);
- }
-
- { /* Negative infinity. */
- x = -1.0L / 0.0L;
- y = ldexpl (x, 0); ASSERT (y == x);
- y = ldexpl (x, 5); ASSERT (y == x);
- y = ldexpl (x, -5); ASSERT (y == x);
- }
-
- { /* Positive zero. */
- x = 0.0L;
- y = ldexpl (x, 0); ASSERT (y == x);
- y = ldexpl (x, 5); ASSERT (y == x);
- y = ldexpl (x, -5); ASSERT (y == x);
- }
-
- { /* Negative zero. */
- x = -0.0L;
- y = ldexpl (x, 0); ASSERT (y == x);
- y = ldexpl (x, 5); ASSERT (y == x);
- y = ldexpl (x, -5); ASSERT (y == x);
- }
-
- { /* Positive finite number. */
- x = 1.73205L;
- y = ldexpl (x, 0); ASSERT (y == x);
- y = ldexpl (x, 5); ASSERT (y == x * 32.0L);
- y = ldexpl (x, -5); ASSERT (y == x * 0.03125L);
- }
-
- { /* Negative finite number. */
- x = -20.085536923187667742L;
- y = ldexpl (x, 0); ASSERT (y == x);
- y = ldexpl (x, 5); ASSERT (y == x * 32.0L);
- y = ldexpl (x, -5); ASSERT (y == x * 0.03125L);
- }
-
- for (i = 1, x = 1.73205L; i <= LDBL_MAX_EXP; i++, x *= 2.0L)
- {
- y = ldexpl (x, 0); ASSERT (y == x);
- y = ldexpl (x, 5); ASSERT (y == x * 32.0L);
- y = ldexpl (x, -5); ASSERT (y == x * 0.03125L);
- }
- for (i = 1, x = 1.73205L; i >= LDBL_MIN_EXP; i--, x *= 0.5L)
- {
- y = ldexpl (x, 0); ASSERT (y == x);
- y = ldexpl (x, 5); ASSERT (y == x * 32.0L);
- if (i - 5 >= LDBL_MIN_EXP)
- {
- y = ldexpl (x, -5); ASSERT (y == x * 0.03125L);
- }
- }
- for (; i >= LDBL_MIN_EXP - 100 && x > 0.0L; i--, x *= 0.5L)
- {
- y = ldexpl (x, 0); ASSERT (y == x);
- y = ldexpl (x, 5); ASSERT (y == x * 32.0L);
- }
+ test_function ();
return 0;
}