math: add fenv pragma, relax the error check, simplify util.h

[libc-test] / src / math / log10.c

diff --git a/src/math/log10.c b/src/math/log10.c
index 4bd80cc..91558cd 100644 (file)
--- a/src/math/log10.c
+++ b/src/math/log10.c
@@ -11,6 +11,7 @@ static struct d_d t[] = {
 
 int main(void)
 {
+       #pragma STDC FENV_ACCESS ON
        double y;
        float d;
        int e, i, err = 0;
@@ -18,18 +19,24 @@ int main(void)
 
        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 = log10(p->x);
-               e = getexcept();
+               e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
+
                if (!checkexcept(e, p->e, p->r)) {
-                       printf("%s log10(%a)==%a except: want %s", rstr(p->r), p->x, p->y, estr(p->e));
+                       printf("%s:%d: bad fp exception: %s log10(%a)=%a, want %s",
+                               p->file, p->line, rstr(p->r), p->x, p->y, estr(p->e));
                        printf(" got %s\n", estr(e));
                        err++;
                }
                d = ulperr(y, p->y, p->dy);
                if (!checkulp(d, p->r)) {
-                       printf("%s log10(%a) want %a got %a ulperr %.3f = %a + %a\n",
-                               rstr(p->r), p->x, p->y, y, d, d-p->dy, p->dy);
+                       printf("%s:%d: %s log10(%a) want %a got %a ulperr %.3f = %a + %a\n",
+                               p->file, p->line, rstr(p->r), p->x, p->y, y, d, d-p->dy, p->dy);
                        err++;
                }
        }