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-rw-r--r--src/mbgl/gl/value.hpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mbgl/gl/value.hpp b/src/mbgl/gl/value.hpp
index 6296d64416..1f01d4e71a 100644
--- a/src/mbgl/gl/value.hpp
+++ b/src/mbgl/gl/value.hpp
@@ -183,6 +183,10 @@ constexpr bool operator!=(const Viewport::Type& a, const Viewport::Type& b) {
return a.x != b.x || a.y != b.y || a.size != b.size;
}
+constexpr bool operator==(const Viewport::Type& a, const Viewport::Type& b) {
+ return !(a != b);
+}
+
struct BindFramebuffer {
using Type = FramebufferID;
static const constexpr Type Default = 0;