If you'd used constant instead of doing it manually and were also using perl 5.10, you'd also avoid the memory overhead for the function DoesNotChange. Anyone doing sub BAR () { FOO } won't get the optimization.

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In reply to Re^2: OOP - Constant Vs. Subroutine () by diotalevi
in thread OOP - Constant Vs. Subroutine by 2xlp

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