how do i create a class

This is a discussion on how do i create a class within the C++ Programming forums, part of the General Programming Boards category; how do i create a class called Largest thatworks with only unsigned long values with the following methods(functions) Largest() bool ...

  1. #1
    Registered User
    Join Date
    Sep 2002
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    1

    how do i create a class

    how do i create a class called Largest thatworks with only unsigned long values with the following methods(functions)
    Largest()
    bool getnext()
    unsigned long value()const

    i need help how to begin
    i need
    Largest.h
    Largest.cpp
    and largestDriver.cpp()
    to be included as my files

    also how do i protect Largest.h from the mulitple inclusion with the #pragma once tag.

  2. #2
    Registered User
    Join Date
    Apr 2002
    Posts
    1,571

    Re: how do i create a class

    Originally posted by chanuajohnson
    how do i create a class called Largest thatworks with only unsigned long values with the following methods(functions)
    Largest()
    bool getnext()
    unsigned long value()const

    i need help how to begin
    i need
    Largest.h
    Largest.cpp
    and largestDriver.cpp()
    to be included as my files

    also how do i protect Largest.h from the mulitple inclusion with the #pragma once tag.
    Don't use #pragma once it is compiler specific. Here is what your H file might look like, keep in mind you will have to write the function implementation in the accompanying cpp file.

    Code:
    #ifndef LARGEST_H 
    #define LARGEST_H
    
    class Largest
    {
      private:
        unsigned long m_foo;
        unsigned long m_foo2;
    
      public:
        Largest( ); // Constructor
        ~Largest( ); // Destructor
        bool getNext( );
        unsigned long value( ) const;
    };
    
    #endif /* LARGEST_H */
    Use those #ifndef's for inclusion guards instead of #pragma once. Post back if you have more questions.

    OOPS: To create an instance of this class in your main code, simply use the following syntax.

    Largest MyLargeList;

    Where Largest is the class you want to create an instance of and MyLargeList is the variable name.

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