How to check for null references

[Hans-Eric Grönlund]

Thank you! I'll direct the basic questions to the learn-newsgroup from now on.

/Hans-Eric

Carlos Santander Wrote:

> Hans-Eric Grönlund escribió:
> > Hi all!
> > 
> > I'm trying to learn D, mostly by trial and error, and I keep tripping over
> > the smallest rocks. This time the pebble is: How can I gracefully check if an
> > object reference is null? I get an access violation if I try this and the
> > reference (o) is null:
> > 
> > if (o == null) {...}
> > 
> > Is this a bug in DMD (I use the stable 1.x version) or did I miss something
> > obvious?
> 
> Use:   if (o is null) {...}
> 
> > 
> > Best regards
> > 
> > Hans-Eric Grönlund Software Developer, Project Manager, Freelance Journalist 
> > http://www.hans-eric.com/
> 
> Since you're learning D, questions like this one are better suited for the 
> D.learn newsgroup.
> 
> -- 
> Carlos Santander Bernal