math: add drem and dremf tests

diff --git a/src/math/drem.c b/src/math/drem.c
new file mode 100644 (file)
index 0000000..ec4bd33
--- /dev/null
+++ b/src/math/drem.c
@@ -0,0 +1,44 @@
+#define _GNU_SOURCE
+#include <stdint.h>
+#include <stdio.h>
+#include "mtest.h"
+
+static struct dd_d t[] = {
+#include "sanity/remainder.h"
+#include "special/remainder.h"
+
+};
+
+int main(void)
+{
+       #pragma STDC FENV_ACCESS ON
+       double y;
+       float d;
+       int e, i, err = 0;
+       struct dd_d *p;
+
+       for (i = 0; i < sizeof t/sizeof *t; i++) {
+               p = t + i;
+
+               if (p->r < 0)
+                       continue;
+               fesetround(p->r);
+               feclearexcept(FE_ALL_EXCEPT);
+               y = drem(p->x, p->x2);
+               e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
+
+               if (!checkexcept(e, p->e, p->r)) {
+                       printf("%s:%d: bad fp exception: %s drem(%a,%a)=%a, want %s",
+                               p->file, p->line, rstr(p->r), p->x, p->x2, p->y, estr(p->e));
+                       printf(" got %s\n", estr(e));
+                       err++;
+               }
+               d = ulperr(y, p->y, p->dy);
+               if (!checkcr(y, p->y, p->r)) {
+                       printf("%s:%d: %s drem(%a,%a) want %a got %a ulperr %.3f = %a + %a\n",
+                               p->file, p->line, rstr(p->r), p->x, p->x2, p->y, y, d, d-p->dy, p->dy);
+                       err++;
+               }
+       }
+       return !!err;
+}

diff --git a/src/math/dremf.c b/src/math/dremf.c
new file mode 100644 (file)
index 0000000..ed16ede
--- /dev/null
+++ b/src/math/dremf.c
@@ -0,0 +1,44 @@
+#define _GNU_SOURCE
+#include <stdint.h>
+#include <stdio.h>
+#include "mtest.h"
+
+static struct ff_f t[] = {
+#include "sanity/remainderf.h"
+#include "special/remainderf.h"
+
+};
+
+int main(void)
+{
+       #pragma STDC FENV_ACCESS ON
+       float y;
+       float d;
+       int e, i, err = 0;
+       struct ff_f *p;
+
+       for (i = 0; i < sizeof t/sizeof *t; i++) {
+               p = t + i;
+
+               if (p->r < 0)
+                       continue;
+               fesetround(p->r);
+               feclearexcept(FE_ALL_EXCEPT);
+               y = dremf(p->x, p->x2);
+               e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
+
+               if (!checkexcept(e, p->e, p->r)) {
+                       printf("%s:%d: bad fp exception: %s dremf(%a,%a)=%a, want %s",
+                               p->file, p->line, rstr(p->r), p->x, p->x2, p->y, estr(p->e));
+                       printf(" got %s\n", estr(e));
+                       err++;
+               }
+               d = ulperrf(y, p->y, p->dy);
+               if (!checkcr(y, p->y, p->r)) {
+                       printf("%s:%d: %s dremf(%a,%a) want %a got %a ulperr %.3f = %a + %a\n",
+                               p->file, p->line, rstr(p->r), p->x, p->x2, p->y, y, d, d-p->dy, p->dy);
+                       err++;
+               }
+       }
+       return !!err;
+}