1 files changed, 18 insertions, 0 deletions
diff --git a/byterun/str.c b/byterun/str.c
index 5e1ad99b8..a97a8d787 100644
--- a/byterun/str.c
+++ b/byterun/str.c
@@ -49,6 +49,24 @@ value string_set(str, index, newval)    /* ML */
   return Val_unit;
 }
 
+value string_equal(s1, s2)      /* ML */
+     value s1, s2;
+{
+  mlsize_t sz1 = Wosize_val(s1);
+  mlsize_t sz2 = Wosize_val(s2);
+  value * p1, * p2;
+  if (sz1 != sz2) return Val_false;
+  for(p1 = Op_val(s1), p2 = Op_val(s2); sz1 > 0; sz1--, p1++, p2++)
+    if (*p1 != *p2) return Val_false;
+  return Val_true;
+}
+
+value string_notequal(s1, s2)   /* ML */
+     value s1, s2;
+{
+  return Val_not(string_equal(s1, s2));
+}
+  
 value blit_string(argv, argc)   /* ML */
      value * argv;
      int argc;