ratio

fixed_wide_traits/src/wide.rs

@@ -14,3 +14,32 @@ pub trait WideCross<Rhs=Self>{
 	type Output;
 	fn wide_cross(self,rhs:Rhs)->Self::Output;
 }
+
+struct Ratio<Num,Den>{
+	num:Num,
+	den:Den,
+}
+impl<Num,Den,T> WideMul<T> for Ratio<Num,Den>
+	where
+		Num:WideMul<T>,
+{
+	type Output=Ratio<<Num as WideMul<T>>::Output,Den>;
+	fn wide_mul(self,rhs:T)->Ratio<<Num as WideMul<T>>::Output,Den>{
+		Ratio{
+			num:self.num.wide_mul(rhs),
+			den:self.den,
+		}
+	}
+}
+impl<Num,Den,T> WideDiv<T> for Ratio<Num,Den>
+	where
+		Den:WideMul<T>,
+{
+	type Output=Ratio<Num,<Den as WideMul<T>>::Output>;
+	fn wide_div(self,rhs:T)->Ratio<Num,<Den as WideMul<T>>::Output>{
+		Ratio{
+			num:self.num,
+			den:self.den.wide_mul(rhs),
+		}
+	}
+}