C# Coding Standard

Rule: 7@502

Synopsis:	Do not modify the value of any of the operands in the implementation of an overloaded operator
Language:	C#
Severity Level:	1
Category:	Object oriented

Description:

This rule can be found in a non-normative clause of [C# Lang], section 17.9.1. Breaking this rule gives counter-intuitive results.

public static PatientList operator + (PatientList list, Patient p)
{
    list += p;
    return list;
}

Literature References:

C# Lang 17.9.1