diff --git a/include/support.h b/include/support.h
index e75fc514..cfa8cf23 100644
--- a/include/support.h
+++ b/include/support.h
@@ -38,6 +38,15 @@
 // Works with both \ and / directory delimeters.
 std::string get_basename(const std::string& filename);
 
+// Unsigned integer division with ceiling
+// There is no risk of signed types being used here because the template is unsigned
+template<typename T1, class = typename std::enable_if<std::is_unsigned<T1>::value>::type,
+         typename T2, class = typename std::enable_if<std::is_unsigned<T2>::value>::type>
+inline const T1 ceil_divide(const T1 x, const T2 y) noexcept {
+	return (x != 0) ? 1 + ((x - 1) / y) : 0;
+	// https://stackoverflow.com/a/2745086
+}
+
 // Include a message in assert, similar to static_assert:
 #define assertm(exp, msg) assert(((void)msg, exp))
 // Use (void) to silent unused warnings.