From 2d5643aed4a5a4bc3ea129d4af3dcbe7af7b9995 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Fri, 30 Aug 2019 09:51:22 -0500
Subject: [PATCH] [algs] Add hb_inc() and hb_dec())

---
 src/hb-algs.hh | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/hb-algs.hh b/src/hb-algs.hh
index 788689478..78b86f37a 100644
--- a/src/hb-algs.hh
+++ b/src/hb-algs.hh
@@ -994,6 +994,18 @@ struct
   operator () (const T &a) const HB_AUTO_RETURN (-a)
 }
 HB_FUNCOBJ (hb_neg);
+struct
+{
+  template <typename T> constexpr auto
+  operator () (const T &a) const HB_AUTO_RETURN (++a)
+}
+HB_FUNCOBJ (hb_inc);
+struct
+{
+  template <typename T> constexpr auto
+  operator () (const T &a) const HB_AUTO_RETURN (--a)
+}
+HB_FUNCOBJ (hb_dec);
 
 
 /* Compiler-assisted vectorization. */