Show me your strcpy

Here is my string copy function: http://pastebin.com/f7gBfsDY

<Nola> it took agner fog 3 years to write a strcpy
<Nola> why are you guys all lamers
<Nola> would you write some lame ass thing that loops and copies Chars
<Nola> that version is gonna be 10x faster than your C loop

Three years, motherfuckers.  Have you optimized your hand-coded assembly strcpy() today?

>>6
It depends on his implementation. I can imagine such a thing being actually slower for the first write, but I won't say anything until I see the implementation. Why would strcpy even use copy-on-write on a string-to-string bases. Copy-on-write is used on a segment/memory area basis.