Question
Define the intersection rule for overloaded operators.
Answers
For overloaded functions with more than one parameter, argument matching is more complex. So, the intersection rule was adopted which uses the following procedure:
1. For each argument in the invocation, determine the set of function definitions that contain the best matches for that argument's type.
2. Take the intersection of these sets, and if the result is not a single definition, then the call is ambiguous.
3. The resulting definition must also match at least one argument better than every other definition.   Your Comment




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class fig2d{
int dim1, dim2;
public:
fig2d() { dim1=5; dim2=6;}
virtual void operator<<(ostream & rhs);
};
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