* Copyright (C) 2026 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdint.h>
#include <stdio.h>
#include "mtest.h"
static struct d_d t[] = {
#include "crlibm/log.h"
#include "ucb/log.h"
#include "sanity/log.h"
#include "special/log.h"
};
int main(void)
{
#pragma STDC FENV_ACCESS ON
double y;
float d;
int e, i, err = 0;
struct d_d *p;
for (i = 0; i < sizeof t/sizeof *t; i++) {
p = t + i;
if (p->r < 0)
continue;
fesetround(p->r);
feclearexcept(FE_ALL_EXCEPT);
y = __log_finite(p->x);
e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
if (!checkexcept(e, p->e, p->r)) {
printf("%s:%d: bad fp exception: %s log(%a)=%a, want %s",
p->file, p->line, rstr(p->r), p->x, p->y, estr(p->e));
printf(" got %s\n", estr(e));
err++;
}
d = ulperr(y, p->y, p->dy);
if (!checkulp(d, p->r)) {
printf("%s:%d: %s log(%a) want %a got %a ulperr %.3f = %a + %a\n",
p->file, p->line, rstr(p->r), p->x, p->y, y, d, d-p->dy, p->dy);
err++;
}
}
return !!err;
}