math: add lrint, lround

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

diff --git a/src/math/llroundl.c b/src/math/llroundl.c
new file mode 100644 (file)
index 0000000..6468208
--- /dev/null
+++ b/src/math/llroundl.c
@@ -0,0 +1,46 @@
+#include <stdint.h>
+#include <stdio.h>
+#include "util.h"
+
+static struct l_i t[] = {
+#if LDBL_MANT_DIG == 53
+#include "sanity/llround.h"
+
+#elif LDBL_MANT_DIG == 64
+#include "sanity/llroundl.h"
+
+#endif
+};
+
+int main(void)
+{
+       #pragma STDC FENV_ACCESS ON
+       int yi;
+       float d;
+       int e, i, err = 0;
+       struct l_i *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);
+               yi = llroundl(p->x);
+               e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
+
+               if (!checkexcept(e, p->e, p->r)) {
+                       printf("%s:%d: bad fp exception: %s llroundl(%La)=%lld, want %s",
+                               p->file, p->line, rstr(p->r), p->x, p->i, estr(p->e));
+                       printf(" got %s\n", estr(e));
+                       err++;
+               }
+               if (yi != p->i) {
+                       printf("%s:%d: %s llroundl(%La) want %lld got %d\n",
+                               p->file, p->line, rstr(p->r), p->x, p->i, yi);
+                       err++;
+               }
+       }
+       return !!err;
+}