Re: [OFF] Convert int to ustring

[Vinzenz 'evilissimo' Feenstra <mailinglist evilissimo-softdev de>]

Of course this is not a speedy solution but it is much safer than using 
sprintf.
Please find here what Herb Sutter wrotes about string formatters:
http://gotw.ca/publications/mill19.htm

--- Quote ----

> From Table 1 I'll extract the following guidelines, also summarized in 
> Table 2:
> - /If all you're doing is converting a value to a string/ (or, for 
> that matter, to anything else!): Prefer using boost::lexical_cast by 
> default.
> - /For simple formatting, or where you need wide string support or 
> templatability:/ Prefer using stringstream or strstream; the code will 
> be more verbose and harder to grasp than it would be with snprintf(), 
> but for simple formatting it won't be too bad.
> - /For more complex formatting, and where you don't need wide string 
> support or templatability:/ Prefer using snprintf(). Just because it's 
> C doesn't mean it's off limits to C++ programmers!
> - /Only if actual performance measurements show that any of the above 
> is really a bottleneck at a specific point in your code:/ In those 
> isolated cases only, instead of the above consider using whichever one 
> of the faster alternatives strstream or snprintf() makes sense.
> - Never use sprintf().
---Quote ----

I've used stringstream to show him a way. But I personally prefer 
boost::lexical_cast<>,
Wince I didn't know if he's using or he wants using boost I didn't 
suggested that.
BR
Vinzenz 'evilissimo' Feenstra






Nickolai Dobrynin schrieb:

> Are you sure this solution is adequate speedwise?  Unless there has been an
> improvement recently, the stringstream support seems fairly slow, on gcc
> at least.
>
> Would it make more sense to use sprintf instead?
>
>
> Regards,
>
> Nickolai
>
>
>
> On Sun, Oct 30, 2005 at 01:56:10AM +0200, Vinzenz 'evilissimo' Feenstra wrote:
>  
>
> > #include <sstream>
> >
> > int num = 1000;
> > Glib::ustring str;
> > std::stringstream strstr;
> > strstr << num;
> > strstr >> str;
> > Now str contains a string "1000"
> >
> > Jupercio Juliano schrieb:
> >
> >    
> >
> > >   Hi all.
> > >   Sorry for the off and the newbie question, but I need to know how 
> > > to convert an int to ustring.
> > >   Thanks for any help.
> > >
> > >      
> > _______________________________________________
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> > gtkmm-list gnome org
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> >