From 2f5b1a9104e5f4a14aa77a2f4c3c6e1c2837500c Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Sun, 27 Jan 2019 00:49:37 +0100
Subject: [PATCH] [iter] Add unary operator+ that returns a copy

---
 src/hb-iter.hh   | 1 +
 src/test-iter.cc | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/hb-iter.hh b/src/hb-iter.hh
index 57a687af4..b98231070 100644
--- a/src/hb-iter.hh
+++ b/src/hb-iter.hh
@@ -69,6 +69,7 @@ struct hb_iter_t
 
   /* Operators. */
   iter_t iter () const { return *thiz(); }
+  iter_t operator + () const { return *thiz(); }
   explicit_operator bool () const { return thiz()->__more__ (); }
   unsigned len () const { return thiz()->__len__ (); }
   hb_remove_reference (item_t)* operator -> () const { return hb_addressof (**thiz()); }
diff --git a/src/test-iter.cc b/src/test-iter.cc
index 97a739cd2..ef3543498 100644
--- a/src/test-iter.cc
+++ b/src/test-iter.cc
@@ -135,7 +135,7 @@ main (int argc, char **argv)
   hb_array_t<hb_vector_t<int> > pa;
   pa->as_array ();
 
-  s
+  + s
   | hb_map (hb_identity)
   | hb_filter ()
   | hb_filter (hb_bool)