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Wrong documentation for BitGet()? [message #93162]

Tue, 03 May 2016 10:34

penteado
Messages: 866
Registered: February 2018

Senior Member
Administrator

Hello,

I was reading the help on the BitGet method,

https://www.harrisgeospatial.com/docs/idl_integer.html#BitGe t

And it seems there is a typo. It says

Print the 3rd bit value of each element of an array:
num = INDGEN(8)
PRINT, num.BitGet( 3 )
IDL prints:
0 0 0 0 1 1 1 1

My experimenting indicates the argument of BitGet is the bit number, starting from zero, not from one as the help indicates. To get the 3rd bit, and obtain the result shown in the example, it seems it should be num.BitGet(2).

Is this correct or am I missing something?

Paulo

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[Message index]

		Wrong documentation for BitGet()? By: penteado on Tue, 03 May 2016 10:34
		Re: Wrong documentation for BitGet()? By: wlandsman on Tue, 03 May 2016 11:05

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