digitalmars.D.learn - Regarding a recent copy() fix
- bearophile <bearophileHUGS lycos.com> Feb 12 2012
In this bug report they have fixed a problem with copy(): http://d.puremagic.com/issues/show_bug.cgi?id=7484#c2 There I have suggested to use memmove() when the array slices overlap (and the items don't have a postblit). Do you know why memmove() is not good here? David Simcha has already given me an answer, but I am being dumb, and I don't understand:I don't think it would have the same semantics in all cases. memmove() requires semantics identical to if an intermediate buffer were used. Imagine copying a[4..9] to a[5..10].
Bye and thank you, bearophile
Feb 12 2012