av::Rational: added num/Rational and Rational/num division

Author: h4tr3d

src/rational.h

@@ -3,6 +3,7 @@
 #include <utility>
 #include <iostream>
 #include <memory>
+#include <type_traits>
 
 #if __cplusplus > 201703L
 #include <compare>
@@ -100,6 +101,20 @@ class Rational
 };
 
 
+template<typename T>
+auto operator/ (T num, Rational value) ->
+    std::enable_if_t<std::is_floating_point_v<T> || std::is_integral_v<T>, Rational>
+{
+    return Rational{num, 1} / value;
+}
+
+template<typename T>
+auto operator/ (Rational value, T num) ->
+    std::enable_if_t<std::is_floating_point_v<T> || std::is_integral_v<T>, Rational>
+{
+    return value / Rational{num, 1};
+}
+
 inline std::ostream& operator<< (std::ostream &stream, const Rational &value)
 {
     stream << value.getNumerator() << '/' << value.getDenominator();