"Rob Stewart" <stewart@sig.com> wrote in message:
From: "Jonathan Turkanis" <technews@kangaroologic.com>
"Rob Stewart" <stewart@sig.com> wrote in message:
From: "Jonathan Turkanis" <technews@kangaroologic.com>
I stole this idiom from John Maddock: http://tinyurl.com/4no5s. It's supposed to make insertion in the middle easier. I think it's the vector vs. list tradeoff.
It fails to make insertion in the middle easy, at least comparatively. Start with:
Yours/John's Mine enum { name_a = 1, 1<<0, name_b = name_a << 1, 1<<1, name_c = name_b << 1 1<<2 };
Now add name_x after name_b:
enum { name_a = 1, 1<<0, name_b = name_a << 1, 1<<1, name_x = name_b << 1, 1<<2, name_c = name_x << 1 1<<3 };
Your version requires a more extensive change
True -- if there are only three enumerators!
due to the use of the enumerator name and makes it harder to determine if the new order is, in fact, sequential.
Also true. Best Regards, Jonathan