121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
/* Test getpayloadl.
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Copyright 2024 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 <https://www.gnu.org/licenses/>. */
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#include <config.h>
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/* Specification. */
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#include <math.h>
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#include "signature.h"
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SIGNATURE_CHECK (getpayloadl, long double, (const long double *));
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#include "minus-zero.h"
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#include "infinity.h"
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#include "signed-nan.h"
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#include "signed-snan.h"
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#include "macros.h"
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#if defined __powerpc__ && LDBL_MANT_DIG == 106
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/* This is PowerPC "double double", a pair of two doubles. NaN is represented
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as the corresponding 64-bit IEEE value in the first double; the second is
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irrelevant and therefore does not contain a payload. */
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# define PAYLOAD_BITS (DBL_MANT_DIG - 2)
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#else
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# define PAYLOAD_BITS (LDBL_MANT_DIG - 2)
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#endif
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int
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main ()
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{
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long double arg;
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long double ret;
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/* Test non-NaN arguments. */
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arg = 2.71828182845904523536028747135266249776L;
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ret = getpayloadl (&arg);
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ASSERT (ret == -1.0L);
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arg = -3.1415926535897932384626433832795028842L;
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ret = getpayloadl (&arg);
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ASSERT (ret == -1.0L);
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arg = 0.0L;
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ret = getpayloadl (&arg);
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ASSERT (ret == -1.0L);
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arg = minus_zerol;
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ret = getpayloadl (&arg);
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ASSERT (ret == -1.0L);
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arg = Infinityl ();
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ret = getpayloadl (&arg);
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ASSERT (ret == -1.0L);
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arg = - Infinityl ();
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ret = getpayloadl (&arg);
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ASSERT (ret == -1.0L);
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/* Test quiet NaNs. */
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{
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int i;
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long double p;
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for (i = 0, p = 1.0L; i < PAYLOAD_BITS; i++, p *= 2.0L)
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{
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ASSERT (setpayloadl (&arg, p) == 0);
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ret = getpayloadl (&arg);
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ASSERT (ret == p);
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/* Test quiet NaNs with sign bit == 1. */
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arg = minus_NaNl (arg);
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ret = getpayloadl (&arg);
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ASSERT (ret == p);
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}
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p = 1320699239819071.0L;
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ASSERT (setpayloadl (&arg, p) == 0);
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ret = getpayloadl (&arg);
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ASSERT (ret == p);
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}
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/* Test signalling NaNs. */
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{
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int i;
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long double p;
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for (i = 0, p = 1.0L; i < PAYLOAD_BITS; i++, p *= 2.0L)
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{
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ASSERT (setpayloadsigl (&arg, p) == 0);
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ret = getpayloadl (&arg);
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ASSERT (ret == p);
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}
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p = 1320699239819071.0L;
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ASSERT (setpayloadsigl (&arg, p) == 0);
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ret = getpayloadl (&arg);
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ASSERT (ret == p);
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/* Test signalling NaNs with sign bit == 1. */
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memory_long_double pos_arg = memory_positive_SNaNl ();
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memory_long_double neg_arg = memory_negative_SNaNl ();
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long double pos_ret = getpayloadl (&pos_arg.value);
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long double neg_ret = getpayloadl (&neg_arg.value);
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ASSERT (neg_ret == pos_ret);
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}
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return test_exit_status;
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}
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