1 #include <stdint.h>
2 #include <stdio.h>
3 #include "mtest.h"
4
5 // TODO: separate ldbl dir
6 static struct ll_l t[] = {
7 #if LDBL_MANT_DIG == 53
8 #include "sanity/nexttowardf.h"
9 #include "special/nexttowardf.h"
10
11 #elif LDBL_MANT_DIG == 64
12 #include "sanity/nexttowardf.h"
13 #include "special/nexttowardf.h"
14
15 #endif
16 };
17
main(void)18 int main(void)
19 {
20 #pragma STDC FENV_ACCESS ON
21 float y;
22 float d;
23 int e, i, err = 0;
24 struct ll_l *p;
25
26 for (i = 0; i < sizeof t/sizeof *t; i++) {
27 p = t + i;
28
29 if (p->r < 0)
30 continue;
31 fesetround(p->r);
32 feclearexcept(FE_ALL_EXCEPT);
33 y = nexttowardf(p->x, p->x2);
34 e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
35
36 if (!checkexceptall(e, p->e, p->r)) {
37 printf("%s:%d: bad fp exception: %s nexttowardf(%La,%La)=%La, want %s",
38 p->file, p->line, rstr(p->r), p->x, p->x2, p->y, estr(p->e));
39 printf(" got %s\n", estr(e));
40 err++;
41 }
42 d = ulperrf(y, p->y, p->dy);
43 if (!checkcr(y, p->y, p->r)) {
44 printf("%s:%d: %s nexttowardf(%La,%La) want %La got %a ulperr %.3f = %a + %a\n",
45 p->file, p->line, rstr(p->r), p->x, p->x2, p->y, y, d, d-p->dy, p->dy);
46 err++;
47 }
48 }
49 return !!err;
50 }
51