[C++-sig] TypeError: bad argument type for built-in operation

[David Abrahams]

You're missing a def_init() in class_<A>.

-Dave

----- Original Message ----- 
From: "Min Xu" <minxu at sci.ccny.cuny.edu>


> Thanks for pointing out my error. I posted a wrong code. 
> 
> The problem is like this:

<snip>