1 files changed, 43 insertions, 0 deletions
diff --git a/either.h b/either.h
new file mode 100644
index 0000000..33808a0
--- /dev/null
+++ b/either.h
@@ -0,0 +1,43 @@
+#pragma once
+
+struct Left{};
+struct Right{};
+
+template <typename T,typename U>
+class Either{
+	T *left;
+	U *right;
+
+public:
+	Either(Left,const T &l)
+		:left(new T(l)),right(nullptr){}
+
+	Either(Right,const U &r)
+		:left(nullptr),right(new U(r)){}
+
+	Either(const Either<T,U> &other){
+		if(other.left)left=new T(*other.left);
+		if(other.right)right=new U(*other.right);
+	}
+
+	~Either(void){
+		if(left)delete left;
+		if(right)delete right;
+	}
+
+	T fromLeft(void) const {
+		return *left;
+	}
+
+	U fromRight(void) const {
+		return *right;
+	}
+
+	bool isLeft(void) const {
+		return (bool)left;
+	}
+
+	bool isRight(void) const {
+		return (bool)right;
+	}
+};