Re: [Boost-users] Python list comprehension-like syntax in C++

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

-- Tzu-Chien Chiu, 3D Graphics Hardware Architect URL:http://www.csie.nctu.edu.tw/~jwchiu But what would an expression-template version look like? y = for_( _1 >> in >> x)[foo] That is what the composition operator would be for: operator _, say, so we could do : foo for_ _1 in x