Re: [PATCH 4/5] include: Add wmemmove to wchar.h

[Dmitry Timoshkov]

Alex Henrie  wrote:
> > > +static inline wchar_t* __cdecl wmemmove(wchar_t *dst, const wchar_t
>
> *src, size_t n)
> > > +{
> > > - size_t i;
> > > - if (dst <= src) return wmemcpy(dst, src, n);
> > > - for (i = 1; i <= n; i++)
> > > -
> > >    dst[n - i] = src[n - i];
> > > - return dst;
> > >
> > > +}
> > The optimization with wmemcpy() looks arbitrary and not safe.
>
> It looks perfectly safe to me. Can you give an example of valid inputs that
> would cause memory corruption?

When the buffers overlap each other with 1 byte offset.