From 141e995806576364d185626176c1b993fc519291 Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Fri, 28 Oct 2016 16:39:50 -0700
Subject: [core] Add support for data-driven styling

---
 include/mbgl/style/undefined.hpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 include/mbgl/style/undefined.hpp

(limited to 'include/mbgl/style/undefined.hpp')

diff --git a/include/mbgl/style/undefined.hpp b/include/mbgl/style/undefined.hpp
new file mode 100644
index 0000000000..e43f132a80
--- /dev/null
+++ b/include/mbgl/style/undefined.hpp
@@ -0,0 +1,12 @@
+#pragma once
+
+namespace mbgl {
+namespace style {
+
+class Undefined {};
+
+inline bool operator==(const Undefined&, const Undefined&) { return true; }
+inline bool operator!=(const Undefined&, const Undefined&) { return false; }
+
+} // namespace style
+} // namespace mbgl
-- 
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