Add Chromium-only Blender WebEngine parity work
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mes123456
270
blender-5.2.0/extern/gmp-source/tests/mpf/t-trunc.c
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blender-5.2.0/extern/gmp-source/tests/mpf/t-trunc.c
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/* Test mpf_trunc, mpf_ceil, mpf_floor.
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Copyright 2001, 2002, 2020 Free Software Foundation, Inc.
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This file is part of the GNU MP Library test suite.
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The GNU MP Library test suite is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 3 of the License,
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or (at your option) any later version.
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The GNU MP Library test suite is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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Public License for more details.
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You should have received a copy of the GNU General Public License along with
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the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
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#include <stdio.h>
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#include <stdlib.h>
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#include "gmp-impl.h"
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#include "tests.h"
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void
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check_print (mpf_srcptr src, mpf_srcptr got, mpf_srcptr want)
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{
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mp_trace_base = 16;
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mpf_trace ("src ", src);
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mpf_trace ("got ", got);
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mpf_trace ("want", want);
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printf ("got size=%d exp=%ld\n", SIZ(got), EXP(got));
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mpn_trace (" limbs=", PTR(got), (mp_size_t) ABSIZ(got));
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printf ("want size=%d exp=%ld\n", SIZ(want), EXP(want));
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mpn_trace (" limbs=", PTR(want), (mp_size_t) ABSIZ(want));
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}
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void
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check_one (mpf_srcptr src, mpf_srcptr trunc, mpf_srcptr ceil, mpf_srcptr floor)
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{
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mpf_t got;
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mpf_init2 (got, mpf_get_prec (trunc));
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ASSERT_ALWAYS (PREC(got) == PREC(trunc));
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ASSERT_ALWAYS (PREC(got) == PREC(ceil));
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ASSERT_ALWAYS (PREC(got) == PREC(floor));
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#define CHECK_SEP(name, fun, want) \
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mpf_set_ui (got, 54321L); /* initial junk */ \
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fun (got, src); \
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MPF_CHECK_FORMAT (got); \
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if (mpf_cmp (got, want) != 0) \
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{ \
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printf ("%s wrong\n", name); \
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check_print (src, got, want); \
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abort (); \
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}
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CHECK_SEP ("mpf_trunc", mpf_trunc, trunc);
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CHECK_SEP ("mpf_ceil", mpf_ceil, ceil);
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CHECK_SEP ("mpf_floor", mpf_floor, floor);
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#define CHECK_INPLACE(name, fun, want) \
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mpf_set (got, src); \
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fun (got, got); \
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MPF_CHECK_FORMAT (got); \
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if (mpf_cmp (got, want) != 0) \
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{ \
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printf ("%s wrong\n", name); \
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check_print (src, got, want); \
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abort (); \
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}
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CHECK_INPLACE ("mpf_trunc", mpf_trunc, trunc);
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/* Can't do these unconditionally in case truncation by mpf_set strips
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some low non-zero limbs which would have rounded the result. */
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if (mpf_size (src) <= PREC(trunc)+1)
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{
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CHECK_INPLACE ("mpf_ceil", mpf_ceil, ceil);
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CHECK_INPLACE ("mpf_floor", mpf_floor, floor);
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}
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mpf_clear (got);
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}
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void
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check_all (mpf_ptr src, mpf_ptr trunc, mpf_ptr ceil, mpf_ptr floor)
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{
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/* some of these values are generated with direct field assignments */
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MPF_CHECK_FORMAT (src);
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MPF_CHECK_FORMAT (trunc);
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MPF_CHECK_FORMAT (ceil);
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MPF_CHECK_FORMAT (floor);
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check_one (src, trunc, ceil, floor);
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mpf_neg (src, src);
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mpf_neg (trunc, trunc);
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mpf_neg (ceil, ceil);
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mpf_neg (floor, floor);
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check_one (src, trunc, floor, ceil);
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}
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void
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check_various (void)
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{
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mpf_t src, trunc, ceil, floor;
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int n, i;
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mpf_init2 (src, 512L);
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mpf_init2 (trunc, 256L);
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mpf_init2 (ceil, 256L);
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mpf_init2 (floor, 256L);
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/* 0 */
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mpf_set_ui (src, 0L);
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mpf_set_ui (trunc, 0L);
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mpf_set_ui (ceil, 0L);
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mpf_set_ui (floor, 0L);
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check_all (src, trunc, ceil, floor);
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/* 1 */
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mpf_set_ui (src, 1L);
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mpf_set_ui (trunc, 1L);
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mpf_set_ui (ceil, 1L);
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mpf_set_ui (floor, 1L);
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check_all (src, trunc, ceil, floor);
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/* 2^1024 */
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mpf_set_ui (src, 1L);
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mpf_mul_2exp (src, src, 1024L);
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mpf_set (trunc, src);
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mpf_set (ceil, src);
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mpf_set (floor, src);
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check_all (src, trunc, ceil, floor);
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/* 1/2^1024, fraction only */
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mpf_set_ui (src, 1L);
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mpf_div_2exp (src, src, 1024L);
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mpf_set_si (trunc, 0L);
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mpf_set_si (ceil, 1L);
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mpf_set_si (floor, 0L);
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check_all (src, trunc, ceil, floor);
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/* 1/2 */
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mpf_set_ui (src, 1L);
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mpf_div_2exp (src, src, 1L);
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mpf_set_si (trunc, 0L);
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mpf_set_si (ceil, 1L);
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mpf_set_si (floor, 0L);
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check_all (src, trunc, ceil, floor);
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/* 123+1/2^64 */
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mpf_set_ui (src, 1L);
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mpf_div_2exp (src, src, 64L);
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mpf_add_ui (src, src, 123L);
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mpf_set_si (trunc, 123L);
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mpf_set_si (ceil, 124L);
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mpf_set_si (floor, 123L);
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check_all (src, trunc, ceil, floor);
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/* integer of full prec+1 limbs, unchanged */
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n = PREC(trunc)+1;
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ASSERT_ALWAYS (n <= PREC(src)+1);
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EXP(src) = n;
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SIZ(src) = n;
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for (i = 0; i < SIZ(src); i++)
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PTR(src)[i] = i+100;
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mpf_set (trunc, src);
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mpf_set (ceil, src);
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mpf_set (floor, src);
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check_all (src, trunc, ceil, floor);
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/* full prec+1 limbs, 1 trimmed for integer */
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n = PREC(trunc)+1;
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ASSERT_ALWAYS (n <= PREC(src)+1);
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EXP(src) = n-1;
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SIZ(src) = n;
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for (i = 0; i < SIZ(src); i++)
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PTR(src)[i] = i+200;
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EXP(trunc) = n-1;
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SIZ(trunc) = n-1;
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for (i = 0; i < SIZ(trunc); i++)
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PTR(trunc)[i] = i+201;
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mpf_set (floor, trunc);
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mpf_add_ui (ceil, trunc, 1L);
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check_all (src, trunc, ceil, floor);
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/* prec+3 limbs, 2 trimmed for size */
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n = PREC(trunc)+3;
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ASSERT_ALWAYS (n <= PREC(src)+1);
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EXP(src) = n;
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SIZ(src) = n;
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for (i = 0; i < SIZ(src); i++)
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PTR(src)[i] = i+300;
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EXP(trunc) = n;
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SIZ(trunc) = n-2;
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for (i = 0; i < SIZ(trunc); i++)
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PTR(trunc)[i] = i+302;
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mpf_set (floor, trunc);
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mpf_set (ceil, trunc);
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PTR(ceil)[0]++;
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check_all (src, trunc, ceil, floor);
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/* prec+4 limbs, 2 trimmed for size, 1 trimmed for integer */
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n = PREC(trunc)+4;
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ASSERT_ALWAYS (n <= PREC(src)+1);
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EXP(src) = n-1;
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SIZ(src) = n;
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for (i = 0; i < SIZ(src); i++)
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PTR(src)[i] = i+400;
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EXP(trunc) = n-1;
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SIZ(trunc) = n-3;
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for (i = 0; i < SIZ(trunc); i++)
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PTR(trunc)[i] = i+403;
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mpf_set (floor, trunc);
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mpf_set (ceil, trunc);
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PTR(ceil)[0]++;
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check_all (src, trunc, ceil, floor);
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/* F.F, carry out of ceil */
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EXP(src) = 1;
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SIZ(src) = 2;
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PTR(src)[0] = GMP_NUMB_MAX;
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PTR(src)[1] = GMP_NUMB_MAX;
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EXP(trunc) = 1;
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SIZ(trunc) = 1;
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PTR(trunc)[0] = GMP_NUMB_MAX;
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mpf_set (floor, trunc);
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EXP(ceil) = 2;
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SIZ(ceil) = 1;
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PTR(ceil)[0] = 1;
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check_all (src, trunc, ceil, floor);
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/* FF.F, carry out of ceil */
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EXP(src) = 2;
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SIZ(src) = 3;
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PTR(src)[0] = GMP_NUMB_MAX;
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PTR(src)[1] = GMP_NUMB_MAX;
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PTR(src)[2] = GMP_NUMB_MAX;
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EXP(trunc) = 2;
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SIZ(trunc) = 2;
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PTR(trunc)[0] = GMP_NUMB_MAX;
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PTR(trunc)[1] = GMP_NUMB_MAX;
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mpf_set (floor, trunc);
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EXP(ceil) = 3;
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SIZ(ceil) = 1;
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PTR(ceil)[0] = 1;
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check_all (src, trunc, ceil, floor);
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mpf_clear (src);
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mpf_clear (trunc);
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mpf_clear (ceil);
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mpf_clear (floor);
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}
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int
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main (void)
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{
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tests_start ();
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check_various ();
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tests_end ();
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exit (0);
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}
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