Thread: I'm REALLY confused. Why isn't cout or cin working here?

I'm creating a program that fills arrays with random numbers, then sorts them in ascending and descending order. I have no problem with that. My question is, why am i getting errors that cout and cin are undeclared in my code. I try using #include <iostream>, but that gives me an even longer list of errors. Here's my code: (Thanks for reading)

Code:

#include <cstdlib>
#include <iomanip>
using namespace std;

const int SIZE = 200;

void initialize_array(int random_ints[], int num_elements, int bound);

int main(void)
   {
   int original_data[SIZE];
   int copy_data[SIZE];
   int num_values = 0;
   int bound = 0;

   cout << "Number of random data values in array (0-200)? ";
   cin >> num_values >> endl;
   cout << "Bound on maximum value? ";
   cin >> bound >> endl;           


   return 1;
   }

void initialize_array(int random_ints[], int num_elements, int bound)
   {
   int seed_value = 0;

   cout << "Random seed value? ";
   cin >> seed_value >> endl;

   srand(seed_value);
   for(int i = 0; i < num_elements; i++)
      {
      random_ints[i] =  rand();
      srand(random_ints[i]);
      i++;        
      }
   }

compiler? What errors? iostream should be #include'd because that is where cout and cin, and endl are declared in the std namespace.

I'm using g++ in Unix, Solaris i believe.

Here's the errors:

assign2.cc: In function `int main()':
assign2.cc:16: `cout' undeclared (first use this function)
assign2.cc:16: (Each undeclared identifier is reported only once for each
function it appears in.)
assign2.cc:17: `cin' undeclared (first use this function)
assign2.cc:11: warning: unused variable `int original_data[200]'
assign2.cc:12: warning: unused variable `int copy_data[200]'
*** Error code 1
make: Fatal error: Command failed for target `assign2'

I don't know if g++ in Unix allows you to cin >> endl, but fixing those errors on winXP, there were no more errors.

Actually, I think I just caught it, you may have to save it as a .cpp file, I don't know if Unix saves .cpp files as .cc, but if it doesn't, then I think that would be your error.

I found the problem with my code, and the reason I was getting about 10 pages of errors:

cout << "Number of random data values in array (0-200)? ";
cin >> num_values >> endl;
cout << "Bound on maximum value? ";
cin >> bound >> endl;

I put my endl in the stream of the cin statement.

I switched the code to look like this:

cout << "Number of random data values in array (0-200)? ";
cin >> num_values;
cout << endl; << "Bound on maximum value? ";
cin >> bound;
cout << endl;

and it compiled.

great to hear it compiled. I caught that, not sure if you saw me post about it though. Yeah, sometimes errors are like that.

Sorry about that, I guess I just read it too fast or something, thanks for the help though.