how is it possible to return multiple values?

hello all, i wonder if it is possible in C++ , that a function returns 2 values (at least) together!? is it even possible ? if so who do we implement such a thing in a function?

Two ideas:

Code:

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#include <utility>
#include <iostream>

std::pair<int, int> myfunc() {
  return std::pair<int, int>(0, 1);
}

int myfunc(int& ret) {
  ret = 1;
  return 0;
}

int main()
{
  std::pair<int, int> x = myfunc();
  std::cout << x.first << ',' << x.second << '\n';
  int tmp;
  int y = myfunc(tmp);
  std::cout << y << ',' << tmp << '\n';
}

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There are a lot of other ways: Pointers, passing / returning a vector that holds the results, etc. Of course, if the returning values are of different types, then you'll most likely have to use references, or a struct similar to pair (Like C++0x's tuple)

Or return a structure if you want to return a number of variable types.

using pointers is probably your best bet.

http://www.codersource.net/c++_pointers.html

theres a nice quicklink to a pointer tutorial if you need it.

Quote:

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Originally Posted by vampirekid.13

using pointers is probably your best bet.

C++ Pointers

theres a nice quicklink to a pointer tutorial if you need it.

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Yuk! I would use a std:: pair, boost::tuple or struct, or just pass reference parameters as stated above. I don't think pointers would be good in this case since there are easier and safer methods available.

thank you all guys , i appreciate that . tanx