How Not to Program in C++

224 Part III

width = MIN;

if (height < MIN)

std::cout << "Height is too small\n";

height = MIN;

}

What the programmer should have written is:

if (width < MIN) {

std::cout << "Width is too small\n";

width = MIN;

}

if (height < MIN) {

std::cout << "Height is too small\n";

height = MIN;

}

Answer 14: The statement:

save_queue = a_queue

copies a queue of size 30 to a queue of size 20. In other words, the assign-

ment operator (as implemented) allows us to copy different size queue.

We should not be allowed to do this.

There are four ways to solve this problem:

1. Use the STL

queue

class.

2. Make the assignment operator private (and not allow any assign-

ments).

3. Change the assignment operator so that it throws an exception if the

size of the queue is not the sa