On Sun, 4 Jan 2004, Lars Gullik Bjønnes wrote:
> >> Where is the obfuscation?
I found
list.remove_if(bind2nd(match(), s));
easier to understand on a high level compared to
list.remove_if(bind(equal_to<string>(),
bind(&Branch::getBranch, _1),
s));
but I've never written C++ code with functors... I think this is a case of
hiding v.s. showing the details respectively. In this case, I get a bit of
an information overload when I have to decipher all the levels of () etc.
Another problem is that I don't know what the purpose is of
bind(&Branch::getBranch, _1)
so I have to guess that, but with only 'match()' I immediately understand
that it's about matching. Of course, I don't know _how_ it works, to get
an idea of what it does that's not necessary.
Anyway, looking at it a bit, I see how it works and it's not that
difficult, it's just a bit much in one statement.
Maybe it would be more readable if a local variable was used for
bind(&Branch::getBranch, _1)... )
Perhaps like this (and remember that I don't know how to use functors):
// Temporary operator that returns branch of element.
??? getBranchOperator = bind(&Branch::getBranch, _1);
> >> | Would boost::lambda help here?
Just guessing from the name 'lambda'... isn't it like the lambda operator
in lisp etc?
If so, it'd probably help me (but then I like using lambda constructors...).
my 0.01 $
/Christian
--
Christian Ridderström http://www.md.kth.se/~chr
