It uses a #switch with #range now.
Brendan Ryan

Nieminen Juha wrote:

> Andrea Ryan <ary### [at] global2000net> wrote:
> : #if (-0.000000000000000244921<=vec.u<=0.000000000000000244921)
>
>   This comparison doesn't work as expected. It will be true when the value
> of 'vec.u' is less than the first value.
>
>   Why?
>   Let's take a simpler example:
>
> #if(-0.5 <= var <= 0.5)
>   #debug "Hello\n"
> #end
>
>   This will print "Hello" only when 'var' is less than '-0.5'.
>   What happens?
>   First povray will evaluate the first operator, ie. "-0.5 <= var". If
> 'var' is greater or equal to -0.5, it will return true, which is the same
> as 1, else false, which is the same as 0.
>   Let's suppose that 'var' has the value 0. The comparison "-0.5 <= 0" will
> return true, ie 1. Now povray will make the comparison "1 <= 0.5" which
> returns false. The string is not printed.
>   Let's suppose that 'var' has the value -1. The comparison "-0.5 <= -1" will
> return false, ie 0. The comparison "0 <= 0.5" will return true. The string
> is printed.
>
>   Thus, the string will be printed only when the value of 'var' is less
> than -0.5.
>
>   The correct way to do the comparison is:
>
> #if(-0.5 <= var & var <= 0.5)
>
> --
> main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
> ):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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