From 67e4419d866a5422613a8f2cb7cfcdfbea9696da Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Thu, 24 Aug 2017 21:44:01 -0400
Subject: [PATCH] fix CharacterWidthDeterminer to be an abstract class

---
 src/core/CharacterWidthDeterminer.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/CharacterWidthDeterminer.h b/src/core/CharacterWidthDeterminer.h
index 4f9b83b..6a90ce0 100644
--- a/src/core/CharacterWidthDeterminer.h
+++ b/src/core/CharacterWidthDeterminer.h
@@ -6,7 +6,7 @@
 class CharacterWidthDeterminer
 {
 public:
-    virtual int operator()(uint32_t character);
+    virtual int operator()(uint32_t character) = 0;
 };
 
 #endif