+#include <stdint.h>
#include <stdio.h>
-#include <math.h>
-#include "test.h"
+#include "util.h"
-static struct {
- double x;
- double yf;
- double yi;
-} t[] = {
- 0.7, 0x1.6666666666666p-1, 0.0,
- -0.7, -0x1.6666666666666p-1, -0.0,
- 1.7, 0x1.6666666666666p-1, 1.0,
- -1.7, -0x1.6666666666666p-1, -1.0,
- 2.0, 0.0, 2.0,
- -2.0, -0.0, -2.0,
- -0x1p99, -0.0, -0x1p99,
- -0.0, -0.0, -0.0,
- INFINITY, 0.0, INFINITY,
- -INFINITY, -0.0, -INFINITY,
- NAN, NAN, NAN,
+static struct d_dd t[] = {
+#include "sanity/modf.h"
+#include "special/modf.h"
};
-static struct {
- float x;
- float yf;
- float yi;
-} tf[] = {
- 0.7, 0x1.666666p-1, 0.0,
- -0.7, -0x1.666666p-1, -0.0,
- 1.7, 0x1.666668p-1, 1.0,
- -1.7, -0x1.666668p-1, -1.0,
- 2.0, 0.0, 2.0,
- -2.0, -0.0, -2.0,
- -0x1p99, -0.0, -0x1p99,
- -0.0, -0.0, -0.0,
- INFINITY, 0.0, INFINITY,
- -INFINITY, -0.0, -INFINITY,
- NAN, NAN, NAN,
-};
-
-static struct {
- long double x;
- long double yf;
- long double yi;
-} tl[] = {
- 0.7L, 0x1.6666666666666666p-1L, 0.0,
- -0.7L, -0x1.6666666666666666p-1L, -0.0,
- 1.7L, 0x1.6666666666666668p-1L, 1.0,
- -1.7L, -0x1.6666666666666668p-1L, -1.0,
- 2.0, 0, 2.0,
- -2.0, -0.0, -2.0,
- -0x1p99, -0.0, -0x1p99,
- -0.0, -0.0, -0.0,
- INFINITY, 0.0, INFINITY,
- -INFINITY, -0.0, -INFINITY,
- NAN, NAN, NAN,
-};
-
-#define eq(a, b) (isnan(a) && isnan(b) || ((a) == (b) && signbit(a) == signbit(b)))
-
-void test_modf()
+int main(void)
{
- double yf, yi;
- int i;
+ #pragma STDC FENV_ACCESS ON
+ double y, yi;
+ float d, di;
+ int e, i, err = 0;
+ struct d_dd *p;
+
for (i = 0; i < sizeof t/sizeof *t; i++) {
- yf = modf(t[i].x, &yi);
- if (!eq(yf,t[i].yf) || !eq(yi,t[i].yi))
- error("modf(%a) want %a %a got %a %a\n", t[i].x, t[i].yf, t[i].yi, yf, yi);
- }
-}
-void test_modff()
-{
- float yf, yi;
- int i;
- for (i = 0; i < sizeof tf/sizeof *tf; i++) {
- yf = modff(tf[i].x, &yi);
- if (!eq(yf,tf[i].yf) || !eq(yi,tf[i].yi))
- error("modff(%a) want %a %a got %a %a\n", tf[i].x, tf[i].yf, tf[i].yi, yf, yi);
- }
-}
-void test_modfl()
-{
- long double yf, yi;
- int i;
- for (i = 0; i < sizeof tl/sizeof *tl; i++) {
- yf = modfl(tl[i].x, &yi);
- if (!eq(yf,tl[i].yf) || !eq(yi,tl[i].yi))
- error("modfl(%La) want %La %La got %La %La\n", tl[i].x, tl[i].yf, tl[i].yi, yf, yi);
+ p = t + i;
+
+ if (p->r < 0)
+ continue;
+ fesetround(p->r);
+ feclearexcept(FE_ALL_EXCEPT);
+ y = modf(p->x, &yi);
+ e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
+
+ if (!checkexcept(e, p->e, p->r)) {
+ printf("%s:%d: bad fp exception: %s modf(%a)=%a,%a, want %s",
+ p->file, p->line, rstr(p->r), p->x, p->y, p->y2, estr(p->e));
+ printf(" got %s\n", estr(e));
+ err++;
+ }
+ d = ulperr(y, p->y, p->dy);
+ di = ulperr(yi, p->y2, p->dy2);
+ if (!checkcr(y, p->y, p->r) || !checkcr(yi, p->y2, p->r)) {
+ printf("%s:%d: %s modf(%a) want %a,%a got %a,%a, ulperr %.3f = %a + %a, %.3f = %a + %a\n",
+ p->file, p->line, rstr(p->r), p->x, p->y, p->y2, y, yi, d, d-p->dy, p->dy, di, di-p->dy2, p->dy2);
+ err++;
+ }
}
-}
-
-void bench_modf_small(int N)
-{
- int i;
- volatile double yf, yi;
-
- for (i = 0; i < N; i++)
- yf = modf(1234.5678, &yi);
-}
-
-void bench_modf_large(int N)
-{
- int i;
- volatile double yf, yi;
-
- for (i = 0; i < N; i++)
- yf = modf(1.2345678e300, &yi);
+ return !!err;
}