[gameprogrammer] Re: Is this valid?

[Paulo Pinto <pjmlp@progtools.org>]

Hi,

If you want to avoid endless hours looking for
pointer problems, NEVER try to do this kind of tricks.

They aren't garanteed to be portable at all.

Cheers,
Paulo

Quoting Brian <brian.ripoff@gmail.com>:

> I don't believe that the C++ standard specifies that std::string is
> contiguous. From the SGI std::string page (I know it isn't the
> standard itself, but its close:
> http://www.sgi.com/tech/stl/basic_string.html) they say:
>
> > Note that the C++ standard does not specify the complexity of   
> > basic_string operations.
>
> If std::string was guaranteed to be contiguous std::string::operator[]
> could be specified as an O(1) operation.
>
> In practise though, most implementations appear to make std::string a
> contiguous dynamic array of some sort.
>
> On Jan 25, 2008 7:24 AM, Olivier Delannoy <olivier.delannoy@gmail.com> wrote:
> > However you can write something like
> >
> >  std::string s;
> >  s.assign(strlen("Hello world"), '\0');
> >  strcpy(&s[0], "Hello world");
>
> ---------------------
> To unsubscribe go to http://gameprogrammer.com/mailinglist.html



----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.


---------------------
To unsubscribe go to http://gameprogrammer.com/mailinglist.html