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Tie::Array::RestrictUpdates 0.01

  Date Added: November 18, 2010  |  Visits: 638

Tie::Array::RestrictUpdates

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Tie::Array::RestrictUpdates can limit the number of times you change elements in an array. SYNOPSIS use Tie::Array::RestrictUpdates; tie @foo,"Tie::Array::RestrictUpdates",1; # Default limit is 1. # Every element from the array can only be changed once @foo = qw(A B C D E); for(0..4) { $foo[$_] = lc $foo[$_]; } print join("-",@foo); # This will print A-B-C-D-E and a bunch of warnings -or- use Tie::Array::RestrictUpdates; tie @foo,"Tie::Array::RestrictUpdates",[1,2,3,4]; # This forces the limits of the first 3 indexes # This also forces any extra elements from the array to have a 0 limit # and therefor be unchangable/unsettable @foo = qw(A B C D E); for(0..3) { $foo[$_] = lc $foo[$_]; } for(0..3) { $foo[$_] = uc $foo[$_]; } for(0..3) { $foo[$_] = lc $foo[$_]; } for(0..3) { $foo[$_] = uc $foo[$_]; } print join("-",@foo); # This will print A-b-C-d and a bunch of warnings.

Requirements: No special requirements
Platforms: Linux
Keyword: Elements Foo Libraries Limit Programming Restrictupdates Tiearrayrestrictupdates Times
Users rating: 0/10

License: Freeware Size: 3.07 KB
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