c++ - How to process several arrays in one range for? -

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• iterating on more 1 seq. container in c++11 2 answers

i want copy array using range for. possible?

something (obviously not working)

unsigned arr[15] = {}; unsigned arr2[15];  (auto : arr, auto &j : arr2)     j = i; 

or there other tricks avoid operating size of arrays, if know sure of same lenght?

upd @paveldavydov solution. please offer a standard lib solution. c++11 contains pairs , tuples too.

for (auto pair : std::make_tuple(&arr, &arr2)); 

#include <boost/range/combine.hpp>  (const auto& pair : boost::combine(arr, arr2)) {   cout << get<0>(pair) << endl; } 

update: ok, if want without boost, can implement higher order function that.

template <class t, unsigned long firstlen, unsigned long secondlen, class pred>  typename std::enable_if<firstlen == secondlen, void>::type loop_two(t (&first)[firstlen], t (&second)[secondlen], pred pred) {   (unsigned long len = 0; len < firstlen; ++len) {     pred(first[len], second[len]);     } } 

and use this:

loop_two(arr, arr1, [] (unsigned a, unsigned b) {   cout << << endl; });