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  1. sub hoge_r {
  2.     my $s = shift;
  3.     substr($$s, 1, 1) = "1";
  4. }
  5.  
  6. sub hoge {
  7.     my $s = shift;
  8.     hoge_r(\$s);
  9. }
  10.  
  11. my $a = "abc";
  12. my $b = $a;
  13. hoge($a);
  14. print $a."\n";
  15.  
  16. hoge_r(\$a);
  17. print $a."\n";
  18. print $b."\n";
  19.  
Success #stdin #stdout 0s 4596KB
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Standard input is empty
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abc
a1c
abc
https://ideone.com/rkz0b
language:
Perl (perl 5.28.1)
created:
11 years ago
visibility:
secret

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