comment on

And as for the type-based multi-dispatch case, we can observe below that Perl 5 does have the notion of runtime types:

A:~ au$ perl -MDevel::Peek -e 'Dump 3'
SV = IV(0x100827190) at 0x100827198
  REFCNT = 1
  FLAGS = (IOK,READONLY,pIOK)
  IV = 3
A:~ au$ perl -MDevel::Peek -e 'Dump "3"'
SV = PV(0x100801258) at 0x1008271b0
  REFCNT = 1
  FLAGS = (POK,READONLY,pPOK)
  PV = 0x100207f60 "3"\0
  CUR = 1
  LEN = 16
[download]

Note that the IV above refers to an integer type, and PV refers a stringish type. (cf. perlguts for details...)

As for the casting functions, Perl 5 has them built-in:

"".$x   # to string
0+$x    # to number
int($x) # to integer
[download]

Hope that helps! :-)

In reply to Re^7: A wholly inadequate reply to an Anonymous Monk by audreyt
in thread A wholly inadequate reply to an Anonymous Monk by pmichaud

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