D9236: Fill lists of default-constructed types directly, not append any by value

[Friedrich W. H. Kossebau]

kossebau added a comment.


  In https://phabricator.kde.org/D9236#177318, @brauch wrote:
  
  > Is this actually faster? Why?
  
  
  It saves a copy constructor and destructor call per list item.
  
  Old code:
  
    alloc heap memory for list items
    for each item
        default constructor item on stack
        setup item on stack
        copy constructor for item on heap from item on stack
        destructor item on stack
  
  New code:
  
    alloc heap memory for list items
    for each item
        default constructor item on heap
    for each item
        setup item on heap

REPOSITORY
  R32 KDevelop

REVISION DETAIL
  https://phabricator.kde.org/D9236

To: kossebau, #kdevelop
Cc: brauch, kdevelop-devel
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