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RE: TS2000 Bug Report - EL - Error with NumericRef



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I reported that bug for TS100 SP2. It should be corrected in SP3. Which SP
are you running?

> -----Original Message-----
> From: Gregory Wood [mailto:swissfranc@xxxxxxxx]
> Sent: Tuesday, January 04, 2000 7:56 PM
> To: techsupport@xxxxxxxxxxxxxxxxx; omega-list@xxxxxxxxxx
> Subject: TS2000 Bug Report - EL - Error with NumericRef
> 
> 
> There are times when values passed by reference to functions do not
> contain the correct results. Here is a simple case to 
> demonstrate this.
> 
> Background. For several months I had been using a function to 
> calculate
> several numbers I use frequently. Then suddently, some indicators
> displayed correctly, while others did not. So I stopped using the
> function, and stopped using NumericRef completely for new projects.
> Since old indicators were ok, I didn't change them.
> 
> Today I altered an indicator that used a function that used 
> NumericRef,
> and my price bands suddenly displayed as flat lines! Checking the new
> code, I discovered that NumericRef works fine, so long as you don't
> refer to an old value of the variable. (Even though the code compiles
> fine, I thought there might be a NumericSeriesRef keyword. But I can't
> find one, and there's no need for one.)
> 
> I created a minimal case for your inspection (attached). Note that if
> you comment out the code that refers to the previous value of the
> variable, the indicator displays correctly. Further note that 
> the error
> occurs even when the code is not executed. And it doesn't 
> matter if the
> function storage is set to "simple" or "series".
> 
> Regards,
> 
> /Greg
> 
> { 
> BUG REPORT: Keywords: TS2000, NumericRef
> 
> This demonstrates an error with passing values by reference. 
> 
> The 'testbug' function is called twice with the same parameters,
> expecting the same result for each.
> 
> The results are plotted. If the values are identical, the color 
> of the second plot (cyan) will show. If they are different, the
> color of the first plot (red) will also show.
> }
> 
> {---------------------------------------------------------}
> { Indicator: TestBug }
> 
> var: upper1(0);
> var: upper2(0);
> 
> value1 = testbug(h, upper1);
> value2 = testbug(h, upper2);
> 
> { indicator displays correctly if the following section is
> commented out }
> {}
> if false then
> 	value1 = upper1[1];
> {}
> 
> plot1(upper1,"",red,default,1);
> plot2(upper2,"",cyan,default,1);
> 
> {---------------------------------------------------------}
> { FUNCTION - TestBug }
> input: price(numericseries), upper(numericref);
> 
> upper = price + 1;
> testbug = price;
>