c++: notes on namespace
boris at kolpackov.net
Wed Apr 21 14:35:29 CDT 2004
Some time ago I wrote:
> @@ Namespace models: 'flat' (like std::) and 'tree' (with nested
> @@ A 'tree' model can potentially be transformed into a 'flat'
> model via using-directives.
> @@ In the 'tree' model the outer namespace is usually for name-
> clash avoidance; the inner namespaces are for the concept
Recently I discovered one interesting advantage of the tree model
over the flat model: when you say
using namespace std;
you make all names in the standard library accessible from this
point. When you say
using namespace std::mm;
you know you have access only to memory-management-related names. In
other words, it feels more comfortable to use using-directive in a
tree-like namespace organization that in a flat one.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Size: 652 bytes
Desc: Digital signature
Url : http://www.kolpackov.net/pipermail/notes/attachments/20040421/181c61f0/attachment.bin
More information about the notes