C++ Boost bind value type {solved}
- by aaa
hello.
I look in documentation and source code but cannot figure out how to get return value type of boost bind functor.
I am trying to accomplish following:
35 template<typename T,size_t N, class F>
36 boost::array<typename F::value_type, N> make_array(T (&input)[N], F unary) {
37 boost::array<typename F::value_type, N> array;
38 std::transform(input, input + N, array.begin(), unary);
39 return array;
40 }
where F can be bind functor. the above does not work because functor does not have value_type. for that matter, is there standard interface for unary/binary functor as far as return value.
solution: it should be result_type. also equivalent defined are argument_type and first/second_argument_type for binary functions
Thanks
