1 #include <stdint.h>
2 #include <stdio.h>
3 #include "mtest.h"
4
5 static struct d_d t[] = {
6 #include "sanity/exp2.h"
7 #include "special/exp2.h"
8
9 };
10
main(void)11 int main(void)
12 {
13 #pragma STDC FENV_ACCESS ON
14 double y;
15 float d;
16 int e, i, err = 0;
17 struct d_d *p;
18
19 for (i = 0; i < sizeof t/sizeof *t; i++) {
20 p = t + i;
21
22 if (p->r < 0)
23 continue;
24 fesetround(p->r);
25 feclearexcept(FE_ALL_EXCEPT);
26 y = exp2(p->x);
27 e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
28
29 if (!checkexcept(e, p->e, p->r)) {
30 if (fabs(y) < 0x1p-1022 && (e|INEXACT) == (INEXACT|UNDERFLOW))
31 printf("X ");
32 else
33 err++;
34 printf("%s:%d: bad fp exception: %s exp2(%a)=%a, want %s",
35 p->file, p->line, rstr(p->r), p->x, p->y, estr(p->e));
36 printf(" got %s\n", estr(e));
37 }
38 d = ulperr(y, p->y, p->dy);
39 if (!checkulp(d, p->r)) {
40 printf("%s:%d: %s exp2(%a) want %a got %a ulperr %.3f = %a + %a\n",
41 p->file, p->line, rstr(p->r), p->x, p->y, y, d, d-p->dy, p->dy);
42 err++;
43 }
44 }
45 return !!err;
46 }
47