Thread: reference vs. const reference

  1. #1
    The Monkey Hunter

    Question reference vs. const reference

    Can someone explain the guidelines for choosing whether to pass a variable by reference or by const reference?

    When should I do:
    "int theFunction( theClass &x);"
    And when should I do:
    "int theFunction( const theClass &x);"

    Thanks for any help

  2. #2
    geek SilentStrike's Avatar
    Join Date
    Aug 2001
    If you are not going to modify the class, pass it by const reference, else pass it by ordinary reference.
    Prove you can code in C++ or C# at TopCoder, referrer rrenaud
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