src/math/lgammaf_r.c

   1 #define _DEFAULT_SOURCE 1
   2 #define _BSD_SOURCE 1
   3 #define _GNU_SOURCE 1
   4 #include <stdint.h>
   5 #include <stdio.h>
   6 #include "mtest.h"
   7
   8 static struct f_fi t[] = {
   9 #include "sanity/lgammaf_r.h"
  10 #include "special/lgammaf_r.h"
  11
  12 };
  13
  14 int main(void)
  15 {
  16         #pragma STDC FENV_ACCESS ON
  17         int yi;
  18         double y;
  19         float d;
  20         int e, i, bad, err = 0;
  21         struct f_fi *p;
  22
  23         for (i = 0; i < sizeof t/sizeof *t; i++) {
  24                 p = t + i;
  25
  26                 if (p->r < 0)
  27                         continue;
  28                 fesetround(p->r);
  29                 feclearexcept(FE_ALL_EXCEPT);
  30                 y = lgammaf_r(p->x, &yi);
  31                 e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
  32
  33                 if (!checkexcept(e, p->e, p->r)) {
  34                         printf("%s:%d: bad fp exception: %s lgammaf_r(%a)=%a,%lld, want %s",
  35                                 p->file, p->line, rstr(p->r), p->x, p->y, p->i, estr(p->e));
  36                         printf(" got %s\n", estr(e));
  37                         err++;
  38                 }
  39                 d = ulperrf(y, p->y, p->dy);
  40                 bad = !isnan(p->x) && p->x!=-inf && !(p->e&DIVBYZERO) && yi != p->i;
  41                 if (bad || !checkulp(d, p->r)) {
  42                         if (!bad && fabsf(d) < 2.0f)
  43                                 printf("X ");
  44                         else
  45                                 err++;
  46                         printf("%s:%d: %s lgammaf_r(%a) want %a,%lld got %a,%d ulperr %.3f = %a + %a\n",
  47                                 p->file, p->line, rstr(p->r), p->x, p->y, p->i, y, yi, d, d-p->dy, p->dy);
  48                 }
  49         }
  50         return !!err;
  51 }