Sams Teach Yourself C++ in 24 Hours, Third Edition

Q&A

Q1:	If a short int can run out of room, why not always use long integers?
A1:	Both short integers and long integers will run out of room, but a long integer will do so with a much larger number. However, on most machines a long integer takes up twice as much memory every time you declare one. Frankly, this is less of a problem than it used to be, because most personal computers now come with many thousands (if not millions) of bytes of memory.
Q2:	What happens if I assign a number with a decimal to an integer rather than a float? Consider the following line of code: int aNumber = 5.4;
A2:	A good compiler will issue a warning, but the assignment is completely legal. The number you've assigned will be truncated into an integer. Thus, if you ...