[boost] Re: assert() replacement?

From: Greg Colvin (gcolvin_at_[hidden])
Date: 1999-08-31 14:07:01

From: Valentin Bonnard <Bonnard.V_at_[hidden]>
> Kevlin Henney wrote:
> 
> > Valentin Bonnard wrote:
> > [...]
> > >    For boost library authors, the first need is perhaps not as great as
> > >    that for a user dotting their own code w/ assertions. Naming and
> > >    describing what constraint was violated is often more useful to a
> > >    library user than receiving a mysterious message about a piece of code
> > >    they have nothing to do w/!
> > 
> > This can easilly be done with a comment:
> > 
> > // must fobnicate before we tweak
> > assert (x ? t(3) : 3434==i+j);
> > 
> >    And there was me thinking that the compiler ignored comments ;-)
> > 
> >    If you wish to do this 'properly' w/ assert:
> > 
> >      assert (("must fobnicate before we tweak", x ? t(3) : 3434==i+j));
> 
> Then the string will take space in the program (I have read 
> that it was a problem for big apps).

Unless the translator removes duplicate string literals?

> I would rather add an argument to assertion:
> 
>   assertion ("must fobnicate before we tweak", x ? t(3) : 3434==i+j);

How does this use less space?

Anyway, I prefer the string to be an optional second argument:
    assertion (x ? t(3) : 3434==i+j, "must fobnicate before we tweak");