diff -r 0f80a2e5e42b -r 1a9eac27698d src/basics.h
--- a/src/basics.h	Fri Feb 07 02:02:16 2020 +0200
+++ b/src/basics.h	Fri Feb 07 23:59:06 2020 +0200
@@ -85,5 +85,25 @@
 	return N;
 }
 
+/**
+ * @brief casts @c x to a suitable unsigned integer
+ */
+template<typename T>
+constexpr auto unsigned_cast(T x)
+	-> std::enable_if_t<std::is_integral_v<T>, std::make_unsigned_t<T>>
+{
+	return static_cast<std::make_unsigned_t<T>>(x);
+}
+
+/**
+ * @brief casts @c x to a suitable signed integer
+ */
+template<typename T>
+constexpr auto signed_cast(T x)
+	-> std::enable_if_t<std::is_integral_v<T>, std::make_signed_t<T>>
+{
+	return static_cast<std::make_signed_t<T>>(x);
+}
+
 Q_DECLARE_METATYPE(glm::vec3)
 Q_DECLARE_METATYPE(glm::mat4)