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From: jpotter@falcon.lhup.edu (John Potter)
Newsgroups: comp.std.c++,comp.lang.c++.moderated
Subject: Re: Unsignedness of size_t
Date: 1 May 2002 21:57:05 GMT
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On 29 Apr 2002 22:41:31 GMT, rhairgroveNoSpam@Pleasebigfoot.com (Bob
Hairgrove) wrote:

> As to arithmetic, can you give an example where it would be wise (or
> even necessary) to mix signed and unsigned values?

Neither wise nor necessary, but common.
   vector<C> v;
   ...
   for (int x = 0; x != v.size(); ++ x)
I'm sure that you always write
   for (vector<C>::size_type u = 0; u != v.size(); ++ u)
and
   v.begin() + x
but never
   v.begin() + u

John



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