working

1 files changed, 45 insertions, 0 deletions

diff --git a/vere/pkg/noun/jets/c/dvr.c b/vere/pkg/noun/jets/c/dvr.c
new file mode 100644
index 0000000..e456e9c
--- /dev/null
+++ b/vere/pkg/noun/jets/c/dvr.c
@@ -0,0 +1,45 @@
+/// @file
+
+#include "jets/q.h"
+#include "jets/w.h"
+
+#include "noun.h"
+
+
+  u3_noun
+  u3qc_dvr(u3_atom a,
+           u3_atom b)
+  {
+    if ( 0 == b ) {
+      return u3m_error("divide-by-zero");
+    }
+    else {
+      if ( _(u3a_is_cat(a)) && _(u3a_is_cat(b)) ) {
+        return u3nc(a / b, a % b);
+      }
+      else {
+        mpz_t a_mp, b_mp;
+
+        u3r_mp(a_mp, a);
+        u3r_mp(b_mp, b);
+
+        mpz_tdiv_qr(a_mp, b_mp, a_mp, b_mp);
+
+        return u3nc(u3i_mp(a_mp), u3i_mp(b_mp));
+      }
+    }
+  }
+  u3_noun
+  u3wc_dvr(u3_noun cor)
+  {
+    u3_noun a, b;
+
+    if ( (c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0)) ||
+         (c3n == u3ud(a)) )
+    {
+      return u3m_bail(c3__exit);
+    } else {
+      return u3qc_dvr(a, b);
+    }
+  }
+