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  1. #1
    Senior Member
    Join Date
    Jan 2014
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    Banglore
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    289

    What is passing by reference?

    Method of passing arguments to a function which takes parameter of type reference. for example: void swap( int & x, int & y ) { int temp = x; x = y; y = temp; } int a=2, b=3; swap( a, b ); Basically, inside the function there won't be any copy of the arguments "x" and "y" instead they refer to original variables a and b. so no extra memory needed to pass arguments and it is more efficient.

  2. #2
    Member
    Join Date
    Nov 2016
    Posts
    39

    Re: What is passing by reference?

    The call by reference method of passing arguments to a function copies the reference of an argument into the formal parameter.

  3. #3
    Senior Member
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    Aug 2016
    Location
    Kolkata
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    276

    Re: What is passing by reference?

    Nice Share keep it up.

  4. #4
    Junior Member
    Join Date
    Sep 2016
    Posts
    22

    Re: What is passing by reference?

    Passing by reference means the called functions' parameter will be the same as the callers' passed argument (not the value, but the identity - the variable itself).

  5. #5
    Senior Member
    Join Date
    Jul 2016
    Posts
    108

    Re: What is passing by reference?

    When reference variables are used as formal parameters, this is known as Pass By Reference.

  6. #6
    Member
    Join Date
    Jun 2016
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    #07-07 Gleneagles Medical Centre, 6 Napier Road, Singapore 258499
    Posts
    59

    Re: What is passing by reference?

    The call by referrals method of moving justifications to the purpose duplicates the referrals of an discussion into the official parameter.

  7. #7
    Senior Member
    Join Date
    Jan 2016
    Posts
    212

    Re: What is passing by reference?

    The call by referrals method of moving justifications to the purpose duplicates the referrals of an discussion into the official parameter.

 

 

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