JLANG::JEquals< JFirst_t, JSecond_t > Struct Template Reference

Template definition of auxiliary base class for comparison of data structures. More...

#include <JEquals.hh>

Inheritance diagram for JLANG::JEquals< JFirst_t, JSecond_t >:

Friends
bool	operator== (const JFirst_t &first, typename JClass< JSecond_t >::argument_type second)
	Equal operator. More...
bool	operator== (typename JClass< JSecond_t >::argument_type first, const JFirst_t &second)
	Equal operator. More...
bool	operator!= (const JFirst_t &first, typename JClass< JSecond_t >::argument_type second)
	Not equal operator. More...
bool	operator!= (typename JClass< JSecond_t >::argument_type first, const JFirst_t &second)
	Not equal operator. More...

Detailed Description

template<class JFirst_t, class JSecond_t = JNullType>
struct JLANG::JEquals< JFirst_t, JSecond_t >

Template definition of auxiliary base class for comparison of data structures.

Specialisation of class JEquals for two data types.

The various specialisations of this class implement the operators == != .

The first template parameter should have the corresponding member methods:

      bool equals(const JFirst_t&) const;
      bool equals(const JSecond_t&) const;

where JFirst_t and JSecond_t refer to the first and second template parameter, respectively. The second template parameter may be a primitive data type. This class uses in-class friend operators (see Barton-Nackman trick).

Definition at line 24 of file JEquals.hh.

Friends And Related Function Documentation

template<class JFirst_t, class JSecond_t = JNullType>

bool operator== ( const JFirst_t &  first, typename JClass< JSecond_t >::argument_type  second  )

friend

Equal operator.

Parameters

first	first object
second	second object

Returns

true if two objects are equal; else false

Definition at line 92 of file JEquals.hh.

    { 
      return first.equals(second);
    }

template<class JFirst_t, class JSecond_t = JNullType>

bool operator== ( typename JClass< JSecond_t >::argument_type  first, const JFirst_t &  second  )

friend

Equal operator.

Parameters

first	first object
second	second object

Returns

true if two objects are equal; else false

Definition at line 106 of file JEquals.hh.

    { 
      return second.equals(first);
    }

template<class JFirst_t, class JSecond_t = JNullType>

bool operator!= ( const JFirst_t &  first, typename JClass< JSecond_t >::argument_type  second  )

friend

Not equal operator.

Parameters

first	first object
second	second object

Returns

true if two objects are not equal; else false

Definition at line 120 of file JEquals.hh.

    {
      return !first.equals(second);
    }

template<class JFirst_t, class JSecond_t = JNullType>

bool operator!= ( typename JClass< JSecond_t >::argument_type  first, const JFirst_t &  second  )

friend

Not equal operator.

Parameters

first	first object
second	second object

Returns

true if two objects are not equal; else false

Definition at line 134 of file JEquals.hh.

    {
      return !second.equals(first);
    }

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The documentation for this struct was generated from the following file:

• JEquals.hh