Re: [Boost-users] lambda usage

"Peng Yu" wrote

I'm made up the following example. But it's not working. Could you please show me how to make it work?

#include #include #include <iostream>

using namespace boost::lambda;

int main() { std::cout << (_1 + _2)(10, 10) << std::endl; }

The function object -- the result of _1 + _2 -- requires T&, and therefore you can't pass constants to it. The following will work: int n1 = 10; int n2 = 10; cout << (_1 + _2)(n1, n2) << endl; HTH, Arkadiy