this is the code i am trying to compile, got it from another forum somewhere.

```
// to_string example

#include <iostream>   // std::cout

#include <string>     // std::string, std::to_string

int main ()

{

  std::string pi = "pi is " + std::to_string(3.1415926);

  std::string perfect = std::to_string(1+2+4+7+14) + " is a perfect number";

  std::cout << pi << '\n';

  std::cout << perfect << '\n';

  return 0;

}

```

I am getting the error: 
'to\_string' is not a member of 'std'

I have read in other forums to select the flags "Have g++ follow the c++11 ISO language standard [-std=c++11]" and i have and it still doesn't work.

Any help would be greatly appreciated

I am using the GNU GCC Compiler
and code::Blocks 12.11