src/math/expm1l.c

   1 #include <stdint.h>
   2 #include <stdio.h>
   3 #include "util.h"
   4
   5 static struct l_l t[] = {
   6 #if LDBL_MANT_DIG == 53
   7 D
   8 #include "sanity/expm1l.h"
   9 #elif LDBL_MANT_DIG == 64
  10
  11 #include "sanity/expm1l.h"
  12 #endif
  13 };
  14
  15 int main(void)
  16 {
  17         long double y;
  18         float d;
  19         int e, i, err = 0;
  20         struct l_l *p;
  21
  22         for (i = 0; i < sizeof t/sizeof *t; i++) {
  23                 p = t + i;
  24                 setupfenv(p->r);
  25                 y = expm1l(p->x);
  26                 e = getexcept();
  27                 if (!checkexcept(e, p->e, p->r)) {
  28                         printf("%s expm1l(%La)==%La except: want %s", rstr(p->r), p->x, p->y, estr(p->e));
  29                         printf(" got %s\n", estr(e));
  30                         err++;
  31                 }
  32                 d = ulperrl(y, p->y, p->dy);
  33                 if (!checkulp(d, p->r)) {
  34                         printf("%s expm1l(%La) want %La got %La ulperr %.3f = %a + %a\n",
  35                                 rstr(p->r), p->x, p->y, y, d, d-p->dy, p->dy);
  36                         err++;
  37                 }
  38         }
  39         return !!err;
  40 }