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

[bugzilla-daemon at webkit.org]

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


Sam Weinig <sam at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sam at webkit.org




--- Comment #10 from Sam Weinig <sam at webkit.org>  2010-03-31 14:47:15 PST ---
What about something like either of these.



namespace WTF {

template <bool canZero, typename T>
struct ZeroFiller;

template<typename T>
struct ZeroFiller<true, T> {
    static void zero(T* begin, T* end)
    {
        memset(begin, 0, reinterpret_cast<char*>(end) -
reinterpret_cast<char*>(begin));
    }
};

template<typename T>
void zeroFill(T* begin, T* end)
{
    ZeroFiller::zero<IsPod<T>::value, T>(first, last)
}

} // namespace WTF


or


namespace WTF {

template<typename T>
void zeroFill(T* begin, T* end)
{
    COMPILE_ASSERT(IsPod<T>);
    memset(begin, 0, reinterpret_cast<char*>(end) -
reinterpret_cast<char*>(begin));
}

} // namespace WTF

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