In recent Perl (since 5.14), you can push to an array reference. It is not autovivified, though; therefore, 
perl -e '$x[0] = []; push $x[0], 1'

[download]
works, but 
perl -e 'push $x[0], 1'

[download]
does not.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re^3: convert rows to columns by choroba
in thread convert rows to columns by b00mIR

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