claude is gud

1 files changed, 76 insertions, 0 deletions

diff --git a/vere/pkg/noun/jets/c/muk.c b/vere/pkg/noun/jets/c/muk.c
new file mode 100644
index 0000000..0846ed7
--- /dev/null
+++ b/vere/pkg/noun/jets/c/muk.c
@@ -0,0 +1,76 @@
+/// @file
+
+#include "jets/q.h"
+#include "jets/w.h"
+
+#include "noun.h"
+#include "murmur3.h"
+
+u3_noun
+u3qc_muk(u3_atom sed,
+         u3_atom len,
+         u3_atom key)
+{
+  if ( c3n == u3a_is_cat(len) ) {
+    return u3m_bail(c3__fail);
+  }
+  else {
+    c3_w len_w = (c3_w)len;
+    c3_w key_w = u3r_met(3, key);
+
+    //  NB: this condition is implicit in the pad subtraction
+    //
+    if ( key_w > len_w ) {
+      return u3m_bail(c3__exit);
+    }
+    else {
+      c3_w  sed_w = u3r_word(0, sed);
+      c3_o  loc_o = c3n;
+      c3_y* key_y = 0;
+      c3_w  out_w;
+
+      //  if we're hashing more bytes than we have, allocate and copy
+      //  to ensure trailing null bytes
+      //
+      if ( len_w > key_w ) {
+        loc_o = c3y;
+        key_y = u3a_calloc(sizeof(c3_y), len_w);
+        u3r_bytes(0, len_w, key_y, key);
+      }
+      else if ( len_w > 0 ) {
+        //  XX assumes little-endian
+        //
+        key_y = ( c3y == u3a_is_cat(key) )
+                ? (c3_y*)&key
+                : (c3_y*)((u3a_atom*)u3a_to_ptr(key))->buf_w;
+      }
+
+      MurmurHash3_x86_32(key_y, len_w, sed_w, &out_w);
+
+      if ( c3y == loc_o ) {
+        u3a_free(key_y);
+      }
+
+      return u3i_words(1, &out_w);
+    }
+  }
+}
+
+u3_noun
+u3wc_muk(u3_noun cor)
+{
+  u3_noun sed, len, key;
+  u3x_mean(cor, u3x_sam_2, &sed,
+                u3x_sam_6, &len,
+                u3x_sam_7, &key, 0);
+
+  if (  (c3n == u3ud(sed))
+     || (c3n == u3ud(len))
+     || (c3n == u3ud(key)) )
+  {
+    return u3m_bail(c3__exit);
+  }
+  else {
+    return u3qc_muk(sed, len, key);
+  }
+}