src/math/sincosl.c

   1 #define _GNU_SOURCE 1
   2 #include <stdint.h>
   3 #include <stdio.h>
   4 #include "mtest.h"
   5
   6 static struct l_ll t[] = {
   7 #if LDBL_MANT_DIG == 53
   8 #include "sanity/sincos.h"
   9 #include "special/sincos.h"
  10 #elif LDBL_MANT_DIG == 64
  11 #include "sanity/sincosl.h"
  12 #include "special/sincosl.h"
  13 #endif
  14 };
  15
  16 int main(void)
  17 {
  18         #pragma STDC FENV_ACCESS ON
  19         long double ysin, ycos;
  20         float dsin, dcos;
  21         int e, i, err = 0;
  22         struct l_ll *p;
  23
  24         for (i = 0; i < sizeof t/sizeof *t; i++) {
  25                 p = t + i;
  26
  27                 if (p->r < 0)
  28                         continue;
  29                 fesetround(p->r);
  30                 feclearexcept(FE_ALL_EXCEPT);
  31                 sincosl(p->x, &ysin, &ycos);
  32                 e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
  33
  34                 if (!checkexcept(e, p->e, p->r)) {
  35                         printf("%s:%d: bad fp exception: %s sincosl(%La)=%La,%La, want %s",
  36                                 p->file, p->line, rstr(p->r), p->x, p->y, p->y2, estr(p->e));
  37                         printf(" got %s\n", estr(e));
  38                         err++;
  39                 }
  40                 dsin = ulperr(ysin, p->y, p->dy);
  41                 dcos = ulperr(ycos, p->y2, p->dy2);
  42                 if (!checkulp(dsin, p->r) || !checkulp(dcos, p->r)) {
  43                         printf("%s:%d: %s sincosl(%La) want %La,%La got %La,%La, ulperr %.3f = %a + %a, %.3f = %a + %a\n",
  44                                 p->file, p->line, rstr(p->r), p->x, p->y, p->y2, ysin, ycos,
  45                                 dsin, dsin-p->dy, p->dy, dcos, dcos-p->dy2, p->dy2);
  46                         err++;
  47                 }
  48         }
  49         return !!err;
  50 }