From bad16066392e4dbdd8490a4b1c70d1dcddcc8ec8 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Wed, 8 May 2019 12:11:52 -0700
Subject: [PATCH] [map] Make .has() optionally return value

---
 src/hb-map.hh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/hb-map.hh b/src/hb-map.hh
index f27ca9c..13099af 100644
--- a/src/hb-map.hh
+++ b/src/hb-map.hh
@@ -181,7 +181,12 @@ struct hb_hashmap_t
   static constexpr V SENTINEL = vINVALID;
   typedef V value_t;
   value_t operator [] (K k) const { return get (k); }
-  bool has (K k) const { return (*this)[k] != SENTINEL; }
+  bool has (K k, V *vp = nullptr) const
+  {
+    V v = (*this)[k];
+    if (vp) *vp = v;
+    return v != SENTINEL;
+  }
   /* Projection. */
   V operator () (K k) const { return get (k); }
 
-- 
2.7.4