Compare CompareTo return with zero in examples (dotnet#5160)

Author: chwarr

samples/snippets/cpp/VS_Snippets_CLR/IComparable`1 Example/CPP/source.cpp

@@ -27,19 +27,19 @@ public ref class Temperature: public IComparable<Temperature^> {
        // Define the is greater than operator.
     bool operator>=  (Temperature^ other)
     {
-       return CompareTo(other) == 1;
+       return CompareTo(other) >= 0;
     }
 
     // Define the is less than operator.
     bool operator<  (Temperature^ other)
     {
-       return CompareTo(other) == -1;
+       return CompareTo(other) < 0;
     }
 
        // Define the is greater than or equal to operator.
     bool operator>  (Temperature^ other)
     {
-       return CompareTo(other) >= 0;
+       return CompareTo(other) > 0;
     }
 
     // Define the is less than or equal to operator.

samples/snippets/csharp/VS_Snippets_CLR/IComparable`1 Example/CS/source.cs

@@ -20,13 +20,13 @@ public int CompareTo(Temperature other)
     // Define the is greater than operator.
     public static bool operator >  (Temperature operand1, Temperature operand2)
     {
-       return operand1.CompareTo(operand2) == 1;
+       return operand1.CompareTo(operand2) > 0;
     }
 
     // Define the is less than operator.
     public static bool operator <  (Temperature operand1, Temperature operand2)
     {
-       return operand1.CompareTo(operand2) == -1;
+       return operand1.CompareTo(operand2) < 0;
     }
 
     // Define the is greater than or equal to operator.

samples/snippets/visualbasic/VS_Snippets_CLR/IComparable`1 Example/VB/source.vb

@@ -20,12 +20,12 @@ Public Class Temperature
 
     ' Define the is greater than operator.
     Public Shared Operator >  (operand1 As Temperature, operand2 As Temperature) As Boolean
-       Return operand1.CompareTo(operand2) = 1
+       Return operand1.CompareTo(operand2) > 0
     End Operator
 
     ' Define the is less than operator.
     Public Shared Operator <  (operand1 As Temperature, operand2 As Temperature) As Boolean
-       Return operand1.CompareTo(operand2) = -1
+       Return operand1.CompareTo(operand2) < 0
     End Operator
 
     ' Define the is greater than or equal to operator.