RE: (off-topic) RE: [Doxygen-users] Documenting IDL

[Wagner, V. <VW...@se...>]

I didn't say operator int(), I said operator void* ().  There is a large
difference.
the problem of 'adding' your own test is that it isn't the same as:
real pointers
STL iterators

-----Original Message-----
From: Stephen Goudge [mailto:ste...@pi...]
Sent: Tuesday, 2001 May 08 09:31
To: dox...@li...
Subject: (off-topic) RE: [Doxygen-users] Documenting IDL

[deleted]

Ah, the number of problems trying to do that caused me :-(

I did originally have an operator int() that could be used in if-statements,
which worked fine using VC++2 through to VC++4; then a client bought VC++5
and
it became ambiguous (I forget the precise reason why), so everything
switched to
IsValid() from then on.

I would be tempted nowadays to try and hid IsValid(), but I take the
attitude
that if something was done because one compiler needed it (and the results
are
still legal) then keep it in, because the code will be used on a.n.other
compiler next week, or the week after...

Even with a decent compiler, there is the vexed question of what the cast
operator should be casting _to_ - you don't really want to return another
pointer type, as that looks too much like you're providing a backdoor. These
days, 'bool' would be a reasonable choice (now that the compilers actually
support 'bool'). The best choice would be the mythical 'logical' type that
'if',
'while' etc use, but that isn't available :-(

Stephen Goudge


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