Nice that you++ picked up the off by one which exactly illustrates the problem with C for loops. I don't much like the while loop solutions because they don't make the number of iterations clear, particularly in conjunction with the post decrement operator - that's just far too subtle.

Actually, to get the count right and clear I'd:

for (1 .. $count + 1) {
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If the values are required I'd:

for my $value (reverse 0 .. $count) {
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which makes it very clear that the values are required in reverse order and the span of values required, but obfuscates the number of iterations somewhat.