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From: Eric Niebler (eric_at_[hidden])
Date: 2005-09-22 10:34:56


Tzu-Chien Chiu wrote:
> In Pyhon:
>
> y = [foo(_1) for _1 in x]
>
> In C++:
>
> list<int> x;
> x.push_back(...);
> ..
>
> list<int> y;
> for (list<int>::iterator it = x.begin(); x.end() != it; ++ it)
> y.push_back( foo(y) );
>
> With boost, can we write the Python-like statement:
>
> copy( x.begin(), x.end(), magic_back_inserter(foo(_1), y) ); // pseudo-code
>

With the range_ex library in boost-sandbox, this would look like:

   boost::copy(
       x | boost::adaptor::transform(&foo)
     , std::back_inserter(y)
   );

range_ex.zip lives at:
http://www.boost-consulting.com/vault/index.php?directory=Algorithms

HTH

-- 
Eric Niebler
Boost Consulting
www.boost-consulting.com

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