What's the best way to do a reverse 'for' loop with an unsigned index?
How about:
for (unsigned i = n ; i-- > 0 ; )
{
// do stuff with i
}
for ( unsigned int loopIndex = n; loopIndex > 0; --loopIndex ) {
unsigned int i = loopIndex - 1;
...
}
or
for ( unsigned int loopIndex = 0; loopIndex < n; ++loopIndex ) {
unsigned int i = n - loopIndex - 1;
...
}
for ( unsigned int i = n; i != 0; i-- ) {
// do something with i - 1
...
}
Note that if you use C++ as well as C, using != is a good habit to get into for when you switch to using iterators, where <= etc. may not be available.