Initial checkin

IDE/mintest/minlib/src/System/IComparable.bf

@@ -0,0 +1,57 @@
+namespace System
+{
+	interface IComparable<T>
+	{
+		int32 CompareTo(T other);
+	}
+
+	public interface IComparer<T>
+	{
+	    int Compare(T x, T y);
+	}
+
+	interface IOpEquatable
+	{
+		static bool operator==(Self lhs, Self other);
+	}
+
+	interface IOpEquatable<TRight>
+	{
+		static bool operator==(Self lhs, TRight other);
+	}
+
+	interface IOpComparable
+	{
+		static int operator<=>(Self lhs, Self rhs);
+	}
+
+	interface IOpAddable
+	{
+		static Self operator+(Self lhs, Self rhs);
+	}
+
+	interface IOpNegatable
+	{									 
+		static Self operator-(Self value);
+	}
+
+	interface IOpConvertibleTo<T>
+	{
+		static operator T(Self value);
+	}
+
+	interface IOpConvertibleFrom<T>
+	{
+		static operator Self(T value);
+	}
+
+	interface IIsNaN
+	{
+		bool IsNaN { get; }
+	}
+
+	interface ICanBeNaN : IIsNaN
+	{
+		
+	}
+}