1 #define _DEFAULT_SOURCE 1
2 #define _BSD_SOURCE 1
3 #include <stdint.h>
4 #include <stdio.h>
5 #include "mtest.h"
6
7 static struct dd_d t[] = {
8 #include "sanity/scalb.h"
9 #include "special/scalb.h"
10
11 };
12
main(void)13 int main(void)
14 {
15 #pragma STDC FENV_ACCESS ON
16 double y;
17 float d;
18 int e, i, err = 0;
19 struct dd_d *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 = scalb(p->x, p->x2);
29 e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
30
31 if (!checkexceptall(e, p->e, p->r)) {
32 printf("%s:%d: bad fp exception: %s scalb(%a,%a)=%a, want %s",
33 p->file, p->line, rstr(p->r), p->x, p->x2, p->y, estr(p->e));
34 printf(" got %s\n", estr(e));
35 err++;
36 }
37 d = ulperr(y, p->y, p->dy);
38 if (!checkcr(y, p->y, p->r)) {
39 printf("%s:%d: %s scalb(%a,%a) want %a got %a ulperr %.3f = %a + %a\n",
40 p->file, p->line, rstr(p->r), p->x, p->x2, p->y, y, d, d-p->dy, p->dy);
41 err++;
42 }
43 }
44 return !!err;
45 }
46