Yes, it seems to work as advertised:

17:39 >perl -Mstrict -wE "my $s = 42; say $s; ++$s; say $s;"
42
43

17:39 >perl -Mstrict -MConst::Fast -wE "const my $s => 42; say $s; ++$
+s; say $s;"
42
Modification of a read-only value attempted at -e line 1.

17:39 >

[download]

How does that help?

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re^8: How to safely use $_ in a library function? by Athanasius
in thread How to safely use $_ in a library function? by perl-diddler

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