BinaryFunction

This is an abstract class and cannot be directly instanced.

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Class Summary

template <class T1, class T2, class R> struct BinaryFunction
{

public:
R	operator() (T1, T2) const; // pure virtual
protected:

}; // BinaryFunction

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DESCRIPTION

BinaryFunction is an abstract class that as the base class for function objects that take two parameters of type T1 and T2 and returns an object of type R. The parameter types T1, T2, and R may, or may not, all be the same type.

The BinaryFunction class defines one pure virtual function, which is operator(). Any class which inherits fron BinaryFunction must override the operator() before it can be used.

BinaryFunction also defines three typedefs for BinaryFunction objects. They are:

first_arg_type,

second_arg_type, and

result_type;

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R operator() (T1, T2) const;

A pure virtual operator. Child class must implement operator() before they can be instantiated. A binary function takes two paramters of type T1 and T2 and returns an object of type R

    virtual R operator() (T1, T2) const;

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All Members

public:
R	operator() (T1, T2) const; // pure virtual
protected:

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Ancestors

Class does not inherit from any other class.

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Descendants

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