math: add some float f(float,int) and some float f(float,int*) tests

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

diff --git a/src/math/lgamma.c b/src/math/lgamma.c
new file mode 100644 (file)
index 0000000..301a967
--- /dev/null
+++ b/src/math/lgamma.c
@@ -0,0 +1,38 @@
+#include <stdint.h>
+#include <stdio.h>
+#include "util.h"
+
+static struct d_di t[] = {
+#include "sanity/lgamma.h"
+
+};
+
+int main(void)
+{
+       int yi;
+       double y;
+       float d;
+       int e, i, err = 0;
+       struct d_di *p;
+
+       for (i = 0; i < sizeof t/sizeof *t; i++) {
+               p = t + i;
+               setupfenv(p->r);
+               y = lgamma(p->x);
+               yi = signgam;
+               e = getexcept();
+               if (!checkexcept(e, p->e, p->r)) {
+                       printf("%s:%d: bad fp exception: %s lgamma(%a)=%a,%lld, want %s",
+                               p->file, p->line, rstr(p->r), p->x, p->y, p->i, estr(p->e));
+                       printf(" got %s\n", estr(e));
+                       err++;
+               }
+               d = ulperr(y, p->y, p->dy);
+               if (!checkulp(d, p->r) || yi != p->i) {
+                       printf("%s:%d: %s lgamma(%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;
+}