8 lines
261 B
Perl
8 lines
261 B
Perl
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#!/usr/bin/perl -w
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use Scalar::Util qw(readonly);
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my $constant="immutable";
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print "scalar is ",(readonly($constant)?"constant":"variable"),"\n";
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Internals::SvREADONLY($constant => 1);
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print "scalar is ",(readonly($constant)?"constant":"variable"),"\n";
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