CS107 Unit 1 Assessment Problem 0

0.cpp

/* Problem 0
 * To run this program, you'll need to have a file named
 * datafile.dat in the working directory.
 */
 
#include <iostream>
#include <fstream> // For ifstream
#include <string>
using namespace std;
 
int main() {
    /* Open the file - else error and return */
    ifstream input("datafile.dat");
    string line;
    if(!input.is_open()) {
        cerr << "Cannot open file!" << endl;
        return 0;
    }   
    /* read each line from file */
    while (getline(input, line)) {
        /* for each character in the line, print if not numeric */
        for (string::const_iterator it = line.begin(); it != line.end(); ++it) {
            if (!(*it >= '0' && *it <= '9')) {
                cout << *it;
             }   
        }   
        cout << endl; /* terminate each line with endl for a line break */
    }   
    return 0;
}