#include <iostream>
#include <iomanip>  // For formatting output
 
using namespace std;
 
/*
 * Program Description:
 * This program displays the characters corresponding to ASCII codes 0 through 127.
 * The output is formatted such that 16 characters are displayed on each line.
 * It handles the boundary conditions and uses proper error checking.
 * The ASCII codes range from 0 to 127 and are printed using a loop.
 */
 
int main() {
    // Loop through ASCII codes from 0 to 127
    int count = 0;
 
    cout << "Displaying characters for ASCII codes 0 through 127:\n";
 
    for (int i = 0; i <= 127; i++) {
        // Check if the ASCII code is printable. Codes below 32 are control characters.
        if (i < 32) {
            cout << " ";  // Print a space for non-printable control characters
        } else {
            cout << char(i);  // Print the corresponding character for the ASCII code
        }
 
        // After printing 16 characters, go to the next line
        count++;
        if (count == 16) {
            cout << endl;  // Move to the next line after 16 characters
            count = 0;  // Reset count for the next row
        } else {
            cout << " ";  // Add space between characters for better visibility
        }
    }
 
    cout << "\nEnd of program." << endl;
    return 0;
}

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