> The {} and [] operators construct new aggregates each time they are evaluated.

This might come as a surprise but literals in Perl are always new as you can see by the references.°

  DB<66> p \1
SCALAR(0x335c4a0)
  DB<67> p \1
SCALAR(0x335c6f8)
  DB<68> p \1
SCALAR(0x335cae8)
  DB<69>

[download]

I know there are languages where it's always the same (IMHO do Ruby and Lisp have a syntax for this) but this is not what I mean or asked.

Alas ... few of the respondents here seem to have read the code in the OP and really have a deep grasp of aliases.

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

°) well undef is an exception, but it's debatable if that's a literal or a constant.

  DB<69> p \undef
SCALAR(0xfb9098)
  DB<70> p \undef
SCALAR(0xfb9098)
  DB<71> p \undef
SCALAR(0xfb9098)
  DB<72> p \undef
SCALAR(0xfb9098)
  DB<73> p \"str"
SCALAR(0x335d3c0)
  DB<74> p \"str"
SCALAR(0x335d498)
  DB<75> p \"str"
SCALAR(0x335d270)

[download]

In reply to Re^2: Shouldn't references be readonly? by LanX
in thread Shouldn't LITERAL references be readonly? (updated) by LanX

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