1 files changed, 17 insertions, 0 deletions
diff --git a/include/mbgl/math/floor.hpp b/include/mbgl/math/floor.hpp
new file mode 100644
index 000000000..692facf5d
--- /dev/null
+++ b/include/mbgl/math/floor.hpp
@@ -0,0 +1,17 @@
+#pragma once
+
+#include <cmath>
+#include <limits>
+#include <type_traits>
+
+namespace mbgl {
+namespace util {
+
+// https://en.cppreference.com/w/cpp/types/numeric_limits/epsilon
+template <typename T, typename = std::enable_if<std::is_floating_point<T>::value>>
+T floor(T a) {
+    return ::fabs(a) <= std::numeric_limits<T>::epsilon() ? 0 : ::floor(a);
+}
+
+} // namespace util
+} // namespace mbgl