[Webkit-unassigned] [Bug 36849] Add zero() method to Vector class

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=36849


Alexey Proskuryakov <ap at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|New Bugs                    |Web Template Framework
                 CC|                            |ap at webkit.org




--- Comment #3 from Alexey Proskuryakov <ap at webkit.org>  2010-03-30 16:12:50 PST ---
GCC optimizes std::fill() using a memset when possible.

  /**
   *  @brief Fills the range [first,last) with copies of value.
   *  @param  first  A forward iterator.
   *  @param  last   A forward iterator.
   *  @param  value  A reference-to-const of arbitrary type.
   *  @return   Nothing.
   *
   *  This function fills a range with copies of the same value.  For one-byte
   *  types filling contiguous areas of memory, this becomes an inline call to
   *  @c memset.
  */

I think it's even done at two levels - both as a specialization in STL, and a
compiler optimization for those engineers who use explicit loops.

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