xref: /third_party/musl/libc-test/src/math/fmodf.c (revision 570af302)
1#include <stdint.h>
2#include <stdio.h>
3#include "mtest.h"
4
5static struct ff_f t[] = {
6#include "ucb/fmodf.h"
7#include "sanity/fmodf.h"
8#include "special/fmodf.h"
9
10};
11
12int main(void)
13{
14	#pragma STDC FENV_ACCESS ON
15	float y;
16	float d;
17	int e, i, err = 0;
18	struct ff_f *p;
19
20	for (i = 0; i < sizeof t/sizeof *t; i++) {
21		p = t + i;
22
23		if (p->r < 0)
24			continue;
25		fesetround(p->r);
26		feclearexcept(FE_ALL_EXCEPT);
27		y = fmodf(p->x, p->x2);
28		e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
29
30		if (!checkexcept(e, p->e, p->r)) {
31			printf("%s:%d: bad fp exception: %s fmodf(%a,%a)=%a, want %s",
32				p->file, p->line, rstr(p->r), p->x, p->x2, p->y, estr(p->e));
33			printf(" got %s\n", estr(e));
34			err++;
35		}
36		d = ulperrf(y, p->y, p->dy);
37		if (!checkcr(y, p->y, p->r)) {
38			printf("%s:%d: %s fmodf(%a,%a) want %a got %a ulperr %.3f = %a + %a\n",
39				p->file, p->line, rstr(p->r), p->x, p->x2, p->y, y, d, d-p->dy, p->dy);
40			err++;
41		}
42	}
43	return !!err;
44}
45