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

[libc-test] / src / math / y0.c

diff --git a/src/math/y0.c b/src/math/y0.c
index 41edba4..2998660 100644 (file)
--- a/src/math/y0.c
+++ b/src/math/y0.c
@@ -9,6 +9,7 @@ static struct d_d t[] = {
 
 int main(void)
 {
+       #pragma STDC FENV_ACCESS ON
        double y;
        float d;
        int e, i, err = 0;
@@ -16,9 +17,14 @@ 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 = y0(p->x);
-               e = getexcept();
+               e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
+
                if (!checkexcept(e, p->e, p->r)) {
                        printf("%s:%d: bad fp exception: %s y0(%a)=%a, want %s",
                                p->file, p->line, rstr(p->r), p->x, p->y, estr(p->e));