How can I set up a loop exit condition without using digits (in C++)?

Any expression which evaluates to true or false can be used as a loop exit condition.

How can I set up a loop exit condition without using digits (in C++)?
Use letters?





for (char ch='a';ch%26lt;'z';ch++)


cout %26lt;%26lt; ch;
Reply:while (K%26lt;'a'||k%26gt;'z') {


k=getch();


}