skip known math failures

[libc-test] / src / math / lgammaf_r.c

diff --git a/src/math/lgammaf_r.c b/src/math/lgammaf_r.c
index a81b644..7c6daf3 100644 (file)
--- a/src/math/lgammaf_r.c
+++ b/src/math/lgammaf_r.c
@@ -1,25 +1,35 @@
+#define _DEFAULT_SOURCE 1
+#define _BSD_SOURCE 1
+#define _GNU_SOURCE 1
 #include <stdint.h>
 #include <stdio.h>
-#include "util.h"
+#include "mtest.h"
 
 static struct f_fi t[] = {
 #include "sanity/lgammaf_r.h"
+#include "special/lgammaf_r.h"
 
 };
 
 int main(void)
 {
+       #pragma STDC FENV_ACCESS ON
        int yi;
        double y;
        float d;
-       int e, i, err = 0;
+       int e, i, bad, err = 0;
        struct f_fi *p;
 
        for (i = 0; i < sizeof t/sizeof *t; i++) {
                p = t + i;
-               setupfenv(p->r);
+
+               if (p->r < 0)
+                       continue;
+               fesetround(p->r);
+               feclearexcept(FE_ALL_EXCEPT);
                y = lgammaf_r(p->x, &yi);
-               e = getexcept();
+               e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
+
                if (!checkexcept(e, p->e, p->r)) {
                        printf("%s:%d: bad fp exception: %s lgammaf_r(%a)=%a,%lld, want %s",
                                p->file, p->line, rstr(p->r), p->x, p->y, p->i, estr(p->e));
@@ -27,10 +37,14 @@ int main(void)
                        err++;
                }
                d = ulperrf(y, p->y, p->dy);
-               if (!checkulp(d, p->r)) {
+               bad = !isnan(p->x) && p->x!=-inf && !(p->e&DIVBYZERO) && yi != p->i;
+               if (bad || !checkulp(d, p->r)) {
+                       if (!bad && fabsf(d) < 2.0f)
+                               printf("X ");
+                       else
+                               err++;
                        printf("%s:%d: %s lgammaf_r(%a) want %a,%lld got %a,%d ulperr %.3f = %a + %a\n",
                                p->file, p->line, rstr(p->r), p->x, p->y, p->i, y, yi, d, d-p->dy, p->dy);
-                       err++;
                }
        }
        return !!err;