xref: /third_party/musl/libc-test/src/math/j0f.c (revision 570af302)
1#define _DEFAULT_SOURCE 1
2#define _BSD_SOURCE 1
3#include <stdint.h>
4#include <stdio.h>
5#include "mtest.h"
6
7static struct f_f t[] = {
8#include "sanity/j0f.h"
9#include "special/j0f.h"
10
11};
12
13int main(void)
14{
15	#pragma STDC FENV_ACCESS ON
16	float y;
17	float d;
18	int e, i, err = 0;
19	struct f_f *p;
20
21	for (i = 0; i < sizeof t/sizeof *t; i++) {
22		p = t + i;
23
24		if (p->r < 0)
25			continue;
26		fesetround(p->r);
27		feclearexcept(FE_ALL_EXCEPT);
28		y = j0f(p->x);
29		e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
30
31		if (!checkexcept(e, p->e, p->r)) {
32			printf("%s:%d: bad fp exception: %s j0f(%a)=%a, want %s",
33				p->file, p->line, rstr(p->r), p->x, p->y, estr(p->e));
34			printf(" got %s\n", estr(e));
35			err++;
36		}
37		d = ulperrf(y, p->y, p->dy);
38		if (!checkulp(d, p->r)) {
39			if (fabsf(d) < 0x1p23f)
40				printf("X ");
41			else
42				err++;
43			printf("%s:%d: %s j0f(%a) want %a got %a ulperr %.3f = %a + %a\n",
44				p->file, p->line, rstr(p->r), p->x, p->y, y, d, d-p->dy, p->dy);
45		}
46	}
47	return !!err;
48}
49