🚀 go-pugleaf

jbuck@Synopsys.COM (Joe Buck) wrote:

> [Discussion about need for a special relocation constructor/destructor ]

>Consider the template
>
>template<class T>
>T* relocate(T* oldloc, void* newloc) {
>	T* result = new(newloc) T(*oldloc);
>	oldloc->~T();
>}
>
> [Discussion about how this template be specialized for classes where
   relocation could be made cheaper]
>

I like this a lot. I wouldn't mind seeing this added to the standard
library and used in the implementation of STL.

It doesn't solve one problem that realloc() does solve: the ability to
prevent relocation if the allocator is able to grow a block without
relocating it. I believe run-time library support tied to a language
extension is needed if you are to take advantage of an operating-system
capability like that. We can probably live without such a language
extension.
-------------------------------------------------------------
Pablo Halpern                   phalpern@truffle.ultranet.com

I am self-employed. Therefore, my opinions *do* represent 
those of my employer.


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