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implicit_returns() has two implicit returns, because the calls to tst_context() could be last statement of the sub.
Since no_implicit_return() has an explicit return at the end which must be passed, disabling the implicit returns. look here Both functions are equivalent, but in the latter the return is explicit.
Cheers Rolf In reply to Re^2: Context propagation into subs and evals
by LanX
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