Trouble converting while loops to for and do loop

[cpluspython]

Hi 2 everyone,
I have been working on this for some time now and have been stuck in the same spot. I have figured out how to get the answer I wanted with 2 while loops but now I'm trying to convert them to a for and do loop. If any one could explain it to me I would really appreciate it. These are the while loops I would like to try to convert to the for and do loops.

[salem c]

If a for loop has the form

for ( a ; b ; c ) {
  d;
}

Then a while loop is just

while ( b ) {
  d;
}

So you might start with

for ( ; (inValue / quotient) > RADIX ; ) {
    quotient *= RADIX;
}

which can be further simplified to

for ( ; (inValue / quotient) > RADIX ; quotient *= RADIX ) {
    ;
}

A while loop into a do loop is harder, because a while loop can execute 0 times, whereas a do loop must execute at least once.
So you end up with a messy

do {
  if ( !quotient ) break;
} while ( true )

[cpluspython]

Thank you very much for the detailed and easy to understand explanation!

[seeplus]

@cpluspython - please don't edit the original post so that future answers are out of context. It's not good etiquette.