I have this bit of code - that doesn't end - when run the program just hangs at this point - any suggestions??

do
{
for (double x = 2.0 ; x <= 6.0; x++)
{
Remainder = pow(2,x) - 1;

move = Pile - Remainder;

}
}
while(move <= Pile/2);

I get an error on compiling that pow() is doesn't like "pow(int, int)" so I have the x as a double - but then it gives an error saying that it's trying to convert an int from a double.....help - it's the last little bit of a program that I have spent ages writing............please!!!!!!!!!
No move always has to be between 1 and half the pile - this is what is considered a "legal" move.

If I don't write the loop like that how else can it be written to find a value for remainder that makes the move legal?
Ok I've been trying different loops to make it work and I have one that seems to work - but it should be giving me random answers but it's not - any suggestions? BTW in the REAL program - the amount of the Pile will be a randomly generated number (RandomInt () ) or the number left after the last turn:

int Pile = 70;
int Remainder;
int move;


for (
{
RandomInt Smart(2,6);
int x = Smart.generate();

Remainder = pow(2.0,x) - 1;

move = Pile - Remainder;

if ( move >= 1 && move <= Pile/2 ) break ;

}
cout << "move = " << move << endl;

Pile -= move ;

cout << "Pile = " << Pile << endl ;
NEVER MIND I WORKED OUT WHY I GET THE SAME ANSWER - I FELL STUPID SOMETIMES!!!!!!!!!!

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I'm guessing the variables Remainder and move are integers. Try declaring them double instead.

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Run it through a debugger, and watch the values of move and Pile change. Is move ever great than or equal to half of Pile?

Also, why have you got the for-loop inside a do-loop? That do-loop will run only once, or forever, depending on what the value of Pile is.

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EDIT:

Assuming you have got all the ints and doubles correctly sorted and consistant...
The code will enter the do loop, and then enter the for loop.
The for loop will then, after 5 iterations, set move to (Pile - 63).
Then the while condition will execute, and if Pile is greater than 126, the do loop will start again. Otherwise, it will finish.

You might as well write:

do{
Remainder = 63.0;
move = Pile - 63.0;
}while(move <= Pile/2);

As it would give *exactly* the results.

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