troubleshooting weird cin >> problem

[wtf]

This is weird ive never seen anything like it before. I swear its the boogeyman.

bool b;
cout << "Testing... " << endl; //makes it here
cin >> b; //crashes here after I input a number
cout << "Testing... " << endl;  //doesn't make it here 

But I've found I can:

char bc;
cin.get(bc);
b = bc - 48;

However if I use that method, I am no longer able to cout << b << endl;
Although I can still printf it.

Please help. What kinds of things could be causing this.

[wtf]

Is it possible to have passed the cin stream to a function and the function grabbed onto it and won't let go of it?


Sorry for not being able to use precise technical terms, but thats the best I can think of.

[ne555]

I cannot reproduce your problem, but it is not in reading a bool. ¿what else do you have?

[wtf]

¿what else do you have?

A migraine, and over a thousand lines of culprit code.

[wtf]

bool getencryptionmethod()
{
    if (cin.fail()) {cin.clear(); clearcin(cin);}
    english << "Encrypting or decrypting a message? \n";
    english << "0. for Encryption.  1.  for Decryption.\n" ;
    bool rv;
    carrotjews:cout<<'>';
    cin >> rv;
    if (cin.fail()) {clearcin(cin); cin.clear(); }
    return rv;
}

It crashes at line 8. However if I comment out line 8 and replace it with rv = 0; it runs smoothly.
I was in the process of removing char pointers from my code as a whole and replacing them with strings. If that helps any. However I doubt it will because I had already replaced many lines of code and its impossible to say which, if any, if thats even the cause, had any effect.

Thanks again for your help.

[ne555]

If the read fails, the variable remains in an undefined state. However I don't think that that is causing the crash.

I was in the process of removing char pointers from my code as a whole and replacing them with strings

Run it through a debugger and perform a backtrace, you may be dereferencing an invalid pointer

[wtf]

I don't know. I just read through pretty much my entire program and I've eliminated practically any pointer that causing a dereference of an invalid pointer.