src/math/frexpf.c

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