Re: [MacPerl] FNG

[rjk@linguist.dartmouth.edu (Ronald J. Kimball)]

Chris Nandor wrote:
> 
> Ronald notes that something called SV_NO provides both values to the
> scalar.  So now it begs the question:  does ~ assume numeric context first
> if there is an integer value available, and if the string value was not the
> last one to be used?  Is this a characteristic of ~, or of perl, which
> returns the numeric value if neither one has ever been used?  If it is a
> characteristic of perl, why does "print $z" treat it as a string?
> 

[No, it doesn't, it *raises* the question.  'Begging the question' is
another name for the fallacy of circular reasoning.  :-P ]


This is a characteristic of all the bitwise operators.  The Camel remarks,
in the explanation of the binary bitwise operators:

  If both operands are strings (and have not been used as numbers since
  being set)...

It doesn't say anything specific about unary ~, but it must work the same
way.


BTW, doesn't print treat everything as a string?


Ronald

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