Re^2: Need an $a and $b as in perl's sort routine

Wouldn't doing a local $::row={} leave '$row' defined in main even outside the code block, however? I'd like $row to disappear once the instruction is complete.

Comment on Re^2: Need an $a and $b as in perl's sort routine

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Re^3: Need an $a and $b as in perl's sort routine by demerphq (Chancellor) on Jan 11, 2006 at 00:53 UTC
No it wouldn't. Or rather $::row would revert to whatever it was before you localized it once you exited the sub that contains the localization. In the example below i use a bare block instead of sub to demonstrate but the same thing applies. `D:\dev\PM>perl -le"$::x='outer'; $c=sub{print $::x}; { local $::x='inn +er'; $c->() } $c->()" inner outer` [download] Thats the whole point of dynamic scoping... --- $world=~s/war/peace/g	[reply] [d/l]

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Re^3: Need an $a and $b as in perl's sort routine
by demerphq (Chancellor) on Jan 11, 2006 at 00:53 UTC

No it wouldn't. Or rather $::row would revert to whatever it was before you localized it once you exited the sub that contains the localization. In the example below i use a bare block instead of sub to demonstrate but the same thing applies.

D:\dev\PM>perl -le"$::x='outer'; $c=sub{print $::x}; { local $::x='inn
+er'; $c->() } $c->()"
inner
outer
[download]

Thats the whole point of dynamic scoping...

---
$world=~s/war/peace/g

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