From: Shea Martin <shea@...>
Date: 2007-04-06T02:40:07+09:00
Subject: Re: false or true == true .... WTF?

Shea Martin wrote:
> I have the following code:
> [code]
> templated = nreturns > 0 or nparams > 0
> puts "nreturns = #{nreturns}, nparams = #{nparams}, templated = 
> #{templated}"
> has_returns = nreturns > 0
> has_params = nparams > 0
> templated2 = (nreturns or nparams)
> puts "has_returns.class = #{has_returns.class}, has_params.class = 
> #{has_params.class}, templated2.class = #{templated2.class}"
> puts "has_returns = #{has_returns}, has_params = #{has_params}, 
> templated2 = #{templated2}"
> puts ""
> [/code]
> 
> when nreturns is 0 and nparams is 1 or more I get this output:
> [output]
> nreturns = 1, nparams = 0, templated = true
> has_returns.class = TrueClass, has_params.class = FalseClass, 
> templated2.class = Fixnum
> has_returns = true, has_params = false, templated2 = 1
> [/output]
> 
> Both 'templated2' and 'templated' should be true, not 0.  I can't seem 
> to duplicate this in irb.  Even in the debugger,
> "p nreturns > 0 or nparams > 0" gives true, while "p templated" gives 
> false.
> 
> This must be a bug in the interpreter is my guess?  My ruby version is 
> 1.8.4 win32.
> 
> Thanks,
> ~S

I can get templated to the correct value by doing this:
[code]
templated = false
if nreturns > 0 or nparams > 0
	templated = true
end
[/code]

But I should not have to do this.  Annoying.

~S