The standard Perl uc just leaves it there when uppercasing.

Any currently supported perl should uppercase it correctly:

$ cat uct.pl 
#!/usr/bin/env perl
use strict;
use warnings;
use utf8;

my $string = 'straße';
my $ucstring = uc $string;
print "Uppercase $string is $ucstring\n";
$ perl uct.pl 
Uppercase straße is STRASSE
$

Are you running an old version?

🦛

In reply to Re^3: Memory Leak with XS but not pure C by hippo
in thread Memory Leak with XS but not pure C by FrankFooty

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