Programming and Graphics

108 Introduction to C++ Programming and Graphics

12 2048 4095

13 4096 8191

14 8192 16383

15 16384 32767

16 32768 65535

17 65536 131071

18 131072 262143

19 262144 524287

20 524288 1048575

21 1048576 2097151

22 2097152 4194303

23 4194304 8388607

24 8388608 16777215

25 16777216 33554431

26 33554432 67108863

27 67108864 134217727

28 134217728 268435455

29 268435456 536870911

30 536870912 1073741823

31 1073741824 2147483647

Please enter the number of bits

(should be less than 32)

q to quit

------------------------------

q

Returnofanalias

An alias, also called a reference, is a duplicate name of a defined variable.
In Chapter 2, we saw that an alias can be declared by stating, for example,

double a;

double&b=a;

In this case,bis an alias ofa.

A function can receive a number of variables, and return an alias to one
of these variables. For example, the following function receives two integers and
returns a reference to the greater

int& maxalias(int& a, int& b)

{

if(b>a)

{

return b;

}