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66f5e6513c
* tests/test-rint.c (INFINITY, NAN): Undefine before redefining. * tests/test-rintf.c (INFINITY, NAN): Likewise. * tests/test-rintl.c (INFINITY, NAN): Likewise.
106 lines
3.1 KiB
C
106 lines
3.1 KiB
C
/* Test of rintl() function.
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Copyright (C) 2010-2012 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2010. */
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#include <config.h>
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#include <math.h>
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#include "signature.h"
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SIGNATURE_CHECK (rintl, long double, (long double));
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#include <float.h>
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#include <stdio.h>
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#include "fpucw.h"
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#include "isnanl-nolibm.h"
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#include "minus-zero.h"
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#include "infinity.h"
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#include "nan.h"
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#include "macros.h"
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#undef INFINITY
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#undef NAN
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#define DOUBLE long double
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#define ISNAN isnanl
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#define INFINITY Infinityl ()
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#define NAN NaNl ()
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#define L_(literal) literal##L
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#define RINT rintl
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#define RANDOM randoml
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#include "test-rint.h"
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int
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main ()
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{
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DECL_LONG_DOUBLE_ROUNDING
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BEGIN_LONG_DOUBLE_ROUNDING ();
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/* Consider the current rounding mode, cf.
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<http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/float.h.html> */
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if (FLT_ROUNDS == 1)
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{
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/* The current rounding mode is round-to-nearest
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(the default in IEEE 754). */
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/* Zero. */
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ASSERT (rintl (0.0L) == 0.0L);
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ASSERT (rintl (minus_zerol) == 0.0L);
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/* Positive numbers. */
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ASSERT (rintl (0.3L) == 0.0L);
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ASSERT (rintl (0.5L) == 0.0L); /* unlike roundl() */
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ASSERT (rintl (0.7L) == 1.0L);
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ASSERT (rintl (1.0L) == 1.0L);
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ASSERT (rintl (1.5L) == 2.0L);
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ASSERT (rintl (1.999L) == 2.0L);
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ASSERT (rintl (2.0L) == 2.0L);
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ASSERT (rintl (2.1L) == 2.0L);
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ASSERT (rintl (2.5L) == 2.0L); /* unlike roundl() */
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ASSERT (rintl (2.7L) == 3.0L);
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ASSERT (rintl (65535.999L) == 65536.0L);
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ASSERT (rintl (65536.0L) == 65536.0L);
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ASSERT (rintl (65536.001L) == 65536.0L);
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ASSERT (rintl (2.341e31L) == 2.341e31L);
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/* Negative numbers. */
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ASSERT (rintl (-0.3L) == 0.0L);
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ASSERT (rintl (-0.5L) == 0.0L); /* unlike roundl() */
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ASSERT (rintl (-0.7L) == -1.0L);
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ASSERT (rintl (-1.0L) == -1.0L);
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ASSERT (rintl (-1.5L) == -2.0L);
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ASSERT (rintl (-1.999L) == -2.0L);
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ASSERT (rintl (-2.0L) == -2.0L);
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ASSERT (rintl (-2.1L) == -2.0L);
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ASSERT (rintl (-2.5L) == -2.0L); /* unlike roundl() */
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ASSERT (rintl (-2.7L) == -3.0L);
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ASSERT (rintl (-65535.999L) == -65536.0L);
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ASSERT (rintl (-65536.0L) == -65536.0L);
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ASSERT (rintl (-65536.001L) == -65536.0L);
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ASSERT (rintl (-2.341e31L) == -2.341e31L);
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test_function ();
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return 0;
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}
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else
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{
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fputs ("Skipping test: non-standard rounding mode\n", stderr);
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return 77;
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}
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}
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