Thread: Transpose of a 2 dimensional array

Hi--
I am trying to figure out how to get the coding for the transpose of a 2-D array to properly work. So far I can successfully generate the array and to print it out but whenever I try to add the part where it will transpose the array, the program simply crashes. I believe that I have something wrong with my indexing in the transpose function part (void trans) but am not sure. I'd appreciate any help. Thanks. Here is the code:

Code:

#include <iostream>
#include <ctime>       // For time()  //
#include <cstdlib>     // For srand() and rand() //
#include <iomanip>
#define ROW 5
#define COL 10

using namespace std;
using std::setw;


void dis(int x[][COL],int,int);
void trans(int x[][COL],int,int);

int main()
{
	int x[ROW][COL];
	int rnum;
	int t[ROW];
	
	cout << "The values of the original array are:\n\n";
	srand(time(0));       // Initialize random number generator. 
	rnum = (rand() % 100) + 1;
	for(int r=0; r<ROW; r++)       //row	
       { 
        for(int c=0; c<COL; c++)
            x[r][c] = (rand()%100) + 1;
       }
	
	dis(x,ROW,COL);
	trans(x,ROW,COL);
	cout << "\nThe values of the modified array are:\n\n";
	dis(x,ROW,COL);
	system("pause");		
	return 0;  // indicates successful termination
} // end main	


void dis(int x[5][10],int r,int c)
{    
    for(int r=0; r<ROW; r++)       //row	
	   { 
        for(int c=0; c<COL; c++)   //column
	       { 
		      cout << setw(5) << x[r][c] << ' ';   //display Array
           }
		cout << "\n" << endl;
        } 
}

void trans(int mat[][10],int r ,int c)
{
   int temp;
   int x[r][c];

for (int r = 0; r < ROW; r++)
   for (int c = 0; c < COL; c++)
      { temp = x[r][c];
        x[r][c] = x[c][r];
        x[c][r] = temp;
      }
}