/* chpt4_10.cpp
 * Anthony Larrain
 *
 * Problem 4.10 from the text.
 * Write a program get a string of maximum length 255 and two characters.
 * The program then subtitutes the second character for all occurrences 
 * of the first. 
 *
 * For Example, if you enter .... matter  t  d 
 * The program prints madder
 */

#include <cstdlib>
#include <cstring>
#include <iostream>

using namespace std;

void converter(char *line, char first, char second);

int main(int argc, char *argv[])
{    
    const int STRLEN = 256;
    char line [STRLEN];
    char first,second;
    
    cout << "Enter Word or Phrase" << endl;
    cin.getline(line,STRLEN);
    cout << "Enter two characters the second will replace the first" << endl;
    cin >> first >> second;
         
    converter(line, first, second);
    cout << "After Conversion" << endl
         << line  << endl;    
    system("PAUSE");
    return EXIT_SUCCESS;
}
void converter(char *line, char first, char second){
    const char TERMINATOR = '\0';
    for(int i = 0; *(line + i) != TERMINATOR; ++i){
        if ( *(line + i) == first ){
            *(line + i) = second;
        }
    }
    return;
}