How to clear the nested vector?

[Jonathan Wakely]

On Tue, Apr 19, 2005 at 03:50:55PM +0100, Mr. H. Xia wrote:

> Hi, all
> 
> I am having problems with clearing a nested vector.

http://gcc.gnu.org/onlinedocs/libstdc++/faq/index.html#5_9

jon