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To further elaborate on hv's excellent response, I often want to know for a fact that a value is explicitly TRUE or explicitly FALSE. Some situations:
  • Talking with another program through an interface
  • Passing values through an API, like HTML::Template
  • Dealing with people who are cute and like to use the zero-but-true value "0E0"
  • Making it explicit to the maintainer (who is usually me, 6 months down the road) exactly what this is meant for
  • Doing validation checks so that I can be certain something is useful only in a boolean context.

It's a minor point, but it's those details that I find separate the beginner from the expert.

------
We are the carpenters and bricklayers of the Information Age.

Then there are Damian modules.... *sigh* ... that's not about being less-lazy -- that's about being on some really good drugs -- you know, there is no spoon. - flyingmoose

I shouldn't have to say this, but any code, unless otherwise stated, is untested


In reply to Re^2: Converting to boolean by dragonchild
in thread Converting to boolean by dragonchild

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