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Re: if evaluation [message #67351]

Wed, 15 July 2009 06:32

Alessio
Messages: 2
Registered: July 2009

Junior Member

David Fanning ha scritto:
> Alessio writes:
>
>> I need to understand how line below is evaluated in pv-wave, because I
>> must convert it to C.
>>
>> AND abs(rg(w)-rg(index)) LT (50<rg(index)>20)
>>
>> This line is a part of an "if" condition.
>>
>> The trouble part is "(50<rg(index)>20)".
>> How this part is evaluated ?
>> Supposing rg(index) is 15, the condition will be evaluated in ?
>
> The statement is evaluated left to right.
>
> Compare 50 and rg(index) and take the smaller
> of those two values. Take that value and
> compare it with 20 and take the larger of
> those two values.
>
> Here is an article on precedence:
>
> www.dfanning.com/misc_tips/precedence.html
>
> Cheers,
>
> David
>
>
Thank you,

Alessio

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		Re: if evaluation By: Alessio on Wed, 15 July 2009 06:32
		Re: if evaluation By: David Fanning on Wed, 15 July 2009 05:27

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