1 files changed, 15 insertions, 4 deletions
diff --git a/src/csscolorparser/csscolorparser.hpp b/src/csscolorparser/csscolorparser.hpp
index 6caf796943..c0ef767f0e 100644
--- a/src/csscolorparser/csscolorparser.hpp
+++ b/src/csscolorparser/csscolorparser.hpp
@@ -1,5 +1,5 @@
 // (c) Dean McNamee <dean@gmail.com>, 2012.
-// C++ port by Konstantin Käfer <mail@kkaefer.com>, 2014.
+// C++ port by Mapbox, Konstantin Käfer <mail@kkaefer.com>, 2014-2017.
 //
 // https://github.com/deanm/css-color-parser-js
 // https://github.com/kkaefer/css-color-parser-cpp
@@ -26,19 +26,30 @@
 #define CSS_COLOR_PARSER_CPP
 
 #include <string>
+#include <cmath>
 
 namespace CSSColorParser {
 
 struct Color {
-    inline Color() {}
+    inline Color() {
+    }
     inline Color(unsigned char r_, unsigned char g_, unsigned char b_, float a_)
-        : r(r_), g(g_), b(b_), a(a_) {}
+        : r(r_), g(g_), b(b_), a(a_ > 1 ? 1 : a_ < 0 ? 0 : a_) {
+    }
     unsigned char r = 0, g = 0, b = 0;
     float a = 1.0f;
 };
 
-Color parse(const std::string& css_str);
+inline bool operator==(const Color& lhs, const Color& rhs) {
+    return lhs.r == rhs.r && lhs.g == rhs.g && lhs.b == rhs.b && ::fabs(lhs.a - lhs.b) < 0.0001f;
+}
 
+inline bool operator!=(const Color& lhs, const Color& rhs) {
+    return !(lhs == rhs);
 }
 
+Color parse(const std::string& css_str);
+
+} // namespace CSSColorParser
+
 #endif