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Article:
  Knowing When to Let Go: Better Living Through Memory Management
Subject:   is simpler slower?
Date:   2003-06-13 20:52:04
From:   iapole
Response to: is simpler slower?

There, I knew there was a good reason not to use it! Thanks, I just couldn't remember it for the life of me.
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Showing messages 1 through 2 of 2.

  • is simpler slower?
    2003-06-15 21:29:50  anonymous2 [View]

    Perhaps this would be faster?

    -setFriend:(id)aFriend
    {
    if (aFriend != friend)
    {
    [friend release];
    friend = [aFriend retain];
    }
    }

    I suppose it depends on the efficency of the comparison operation.
    • is simpler slower?
      2003-06-16 16:11:16  iapole [View]

      I believe the PPC's branch prediction is good enough to make that fast, but faster still will probably be:

      -(void)setFriend:(id)aFriend
      {
      [aFriend retain];
      [friend release];
      friend = aFriend;
      }

      Which avoids the releasing problem. But keep in mind that this is all subjective, I have done absolutely no tests of efficiency regarding these.