Classes with exception problem

[Gawaine]

I have a program that uses class functions to enter and print out info. The problem is with the second function answers(). Here is the whole cpp file. In the answer function I need to use an exception to exit when its the end of an array. I could just be doing it wrong. I used try/catch originally but when I used it, it caught the exception but ended the whole program. Anyone know what I should do?

#include <iostream>
#include <cstdlib>
#include "answering_machine.h"
using namespace std;

void AnsweringMachine::init(){
    numMessages = 0;
}

void AnsweringMachine::answer (string messages[MAX_NUM]){
    cout << "Enter words into the string array: " << endl;
    cout << "Type exit when you are done " << endl;
    for (int i=0; i < MAX_NUM; i++){
        cin >> messages[i];
        numMessages++;
        if (messages[i] == "exit")
            throw "No more room";
        }

}

void AnsweringMachine::playback(){
    for (int i=0; i < MAX_NUM; i++)
        cout << messages[i];
}

int AnsweringMachine::getNumMessages(){
    return numMessages;
}

bool AnsweringMachine::haveMessage(){
    if (messages){
        return true;
    }
}

void AnsweringMachine::reset(){
    messages[MAX_NUM].clear();
}

[MiiNiPaa]

I need to use an exception to exit when its the end of an array.

Why would you do such abomination?

USe break; to stop loop. Use return; to stop function. You can even use goto to break from several nested loops. But exceptions to do something routine? This is perversion.

[Gawaine]

Throw an exception if there is no room left in the array (i.e., the machine is full)

his words not mine. I agree with you 100% though. If it's not possible then I'll just do as you said.

[MiiNiPaa]

So you should throw an exception if loop will went up to MAX_NUM, not when user prints exit.

[Gawaine]

I did that originally but then it won't print out my exception and it won't print out what I typed in.

[MiiNiPaa]

    for (int i=0; i < MAX_NUM; i++){
        cin >> messages[i];
        numMessages++;
        if (messages[i] == "exit")
            return;
    }
    if(numMessages >= MAX_NUM)
        trow std::runtime_error("No more room");

You need to include <exception>

[Gawaine]

whew! thanks I read a little about runtime_error to understand it better (very useful code) so i used it and it worked. Then I fixed my printing function (I was supposed to take a parameter) but now everything is working fine. Thanks!