Is using a while block to do nothing a bad thing?

Question

I\'m currently working through the excercises in \'The C Programming Language\'. Here\'s one of my solutions:

int c;

while ((c=getchar()) != EOF) {

if (c == \         


        

Answer 1

Well if you really don't like the empty braces, you could refactor that inner loop into

while (c == ' ') {c = getchar();}

This costs one extra comparison though, so a do while loop would be better.