1 files changed, 36 insertions, 0 deletions
diff --git a/Examples/ruby/hashargs/example.i b/Examples/ruby/hashargs/example.i
new file mode 100644
index 0000000..159bbd3
--- /dev/null
+++ b/Examples/ruby/hashargs/example.i
@@ -0,0 +1,36 @@
+%module example
+
+%typemap(in) (int nattributes, const char **names, const int *values) (VALUE keys_ary, int i, VALUE key, VALUE val) {
+  Check_Type($input, T_HASH);
+  $1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));
+  $2 = NULL;
+  $3 = NULL;
+  if ($1 > 0) {
+    $2 = (char **) malloc($1*sizeof(char *));
+    $3 = (int *) malloc($1*sizeof(int));
+    keys_ary = rb_funcall($input, rb_intern("keys"), 0, NULL);
+    for (i = 0; i < $1; i++) {
+      key = rb_ary_entry(keys_ary, i);
+      val = rb_hash_aref($input, key);
+      Check_Type(key, T_STRING);
+      Check_Type(val, T_FIXNUM);
+      $2[i] = STR2CSTR(key);
+      $3[i] = NUM2INT(val);
+    }
+  }
+}
+
+%typemap(freearg) (int nattributes, const char **names, const int *values) {
+  free((void *) $2);
+  free((void *) $3);
+}
+
+%inline %{
+void setVitalStats(const char *person, int nattributes, const char **names, const int *values) {
+  int i;
+  printf("Name: %s\n", person);
+  for (i = 0; i < nattributes; i++) {
+    printf("  %s => %d\n", names[i], values[i]);
+  }
+}
+%}