Re: [Boost-users] boost.lambda for_each and boost.array

From: Olaf Peter (ope-devel_at_[hidden])
Date: 2008-04-08 01:54:44

Thanks for all answers,

>>      for_each( values.begin(), values.end(), std::cout << _1 << '\n');
>>
>>  error: 'for_each' was not declared in this scope
>>
> 
> You never included <algorithm>, and it's std::for_each anyways.
> 
>>  using std::list compiles and works. Did I miss something?
>>
> 
> That's a fluke.  One of the headers (perhaps <list>) happens to
> include <algorithm>, and using std::list means that std::for_each gets
> found by ADL.  Neither are good style, and the first is non-conforming
> if <algorithm> came indirectly from a standard header.

that's is what did confuse me.

The boost.lambda header has a for_each struct/class calling 
std::for_each in boost/lambda/algorithm.hpp.

Thanks,
Olaf