From: Moore, Paul (Paul.Moore_at_[hidden])
Date: 1999-09-01 04:41:14
From: Beman Dawes [mailto:beman_at_[hidden]]
> >> * Reporting of file and line.
> >
> >These are contradicting. We must choose.
>
> Well, it is possible to pass __LINE__ and __FILE__ as arguments, but
> you are right in that people probably wouldn't like to do that extra
> coding.
It's not possible to completely eliminate macros, and still get __LINE__
and __FILE__, but is a reasonable compromise a ASSERTION_INFO(str)
macro, which packages up __LINE__, __FILE__, and str, and passes them on
to the assertion function? Still requires a macro, but limits it to one
optional case (and offers the string argument as an incentive to use
it)...
Usage might be assertion<WHENEVER>(i != 0, ASSERTION_INFO("need some
input"))
Paul.
PS The other way in which a macro has the advantage is in that it can
"stringize" and report the actual expression being asserted.