Thread: Removing duplicate items from vector

  1. 03-07-2010 #1
    7heavens
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    Removing duplicate items from vector

    Hi guys.

    Can anyone give me a rough idea of how to remove duplicate items from a vector?
  2. 03-07-2010 #2
    cpjust
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    Use a std::set instead of a std::vector.
    There's also an std::unique() function that does just what you're looking for (I believe you'd need to also use the std::vector::erase() function afterwards).
    Last edited by cpjust; 03-07-2010 at 08:59 PM.
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  3. 03-08-2010 #3
    laserlight
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    If your vector is sorted, or if sorting it is an option, then indeed std::unique with the range version of member function erase() would be a very good option.
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