On 01/07/2012 01:18, Vicente J. Botet Escriba wrote:
Could a lambda help on this context?
int main() { int A[5]; A | boost::adaptors::transformed([](int a){ return foo(a);}); }
The OP already pointed this one out. It's not satisfying because it requires specifying the type of the first argument. Something you could do in C++11 int main() { struct foo_type { template<class Sig> struct result; template<class This, class A0> struct result<This(A0)> { typedef decltype(foo(declval<A0>())) type; }; template<class A0> typename result<foo_(A0&&)>::type operator()(A0&& a0) const { return foo(forward<A0>(a0)); } }; foo_type foo_; int A[5]; A | boost::adaptors::transformed(foo_); } The functor could be generated by a macro that would just take the function name and the number of arguments.