nextkey

Tied-hash iterator: return the next key after FIRSTKEY.

Synopsis

while (my ($k, $v) = each %Config) { ... }

What you get back

The next key in the current iteration, or undef when the walk is exhausted.

Edge cases

• Calling NEXTKEY without a prior FIRSTKEY starts from wherever the hash’s internal iterator happens to be.

Differences from upstream

Fully compatible with upstream.