[boost] Re: container algorithms almost complete

From: Dirk Gerrits (dirk_at_[hidden])
Date: 2003-03-02 14:53:06

Dirk Gerrits wrote:
> Thorsten Ottosen wrote:
> 
>> I see your point. Does anyone have a nice idea of how to detect when the
>> template argument is an iterator? It's easy with pairs and arrays and the
>> default case is containers.
> 
> 
> Perhaps you can use Boost's concept check to see if the template 
> argument models the Input Iterator concept? That's the first thing that 
> came to mind, I haven't tried it out or anything.

On second thought, that won't work. Concept check causes a compilation 
error when the argument does not conform to the concept.

Perhaps you can do it the other way around? Check for a T::begin member 
function to see if the type is a container, and assume the type is an 
iterator in the default case? I'm not sure what that check would look 
like though.

Dirk Gerrits