src/math/remquol.c

   1 #include <stdint.h>
   2 #include <stdio.h>
   3 #include "mtest.h"
   4
   5 static struct ll_li t[] = {
   6 #if LDBL_MANT_DIG == 53
   7 #include "sanity/remquo.h"
   8 #include "special/remquo.h"
   9
  10 #elif LDBL_MANT_DIG == 64
  11 #include "sanity/remquol.h"
  12 #include "special/remquol.h"
  13
  14 #endif
  15 };
  16
  17 int main(void)
  18 {
  19         #pragma STDC FENV_ACCESS ON
  20         int yi;
  21         long double y;
  22         float d;
  23         int e, i, err = 0;
  24         struct ll_li *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 = remquol(p->x, p->x2, &yi);
  34                 e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
  35
  36                 if (!checkexcept(e, p->e, p->r)) {
  37                         printf("%s:%d: bad fp exception: %s remquol(%La,%La)=%La,%lld, want %s",
  38                                 p->file, p->line, rstr(p->r), p->x, p->x2, p->y, p->i, estr(p->e));
  39                         printf(" got %s\n", estr(e));
  40                         err++;
  41                 }
  42                 d = ulperr(y, p->y, p->dy);
  43                 if (!checkcr(y, p->y, p->r) ||
  44                 (!isnan(p->y) && (yi & 7) != (p->i & 7)) ||
  45                 (!isnan(p->y) && (yi < 0) != (p->i < 0))) {
  46                         printf("%s:%d: %s remquol(%La,%La) want %La,%lld got %La,%d ulperr %.3f = %a + %a\n",
  47                                 p->file, p->line, rstr(p->r), p->x, p->x2, p->y, p->i, y, yi, d, d-p->dy, p->dy);
  48                         err++;
  49                 }
  50         }
  51         return !!err;
  52 }