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Re: hexadecimal variables [message #15078]

Thu, 22 April 1999 00:00

Dick Jackson
Messages: 347
Registered: August 1998

Senior Member

Hi,

Pavel Romashkin wrote:
>
> Hi,
> Is there a nice way to convert hexadecimal variables? Here's what I am
> trying to do:
>
> This is received from the outside.
> h_string = '40000FC0DA'
>
> [...] Can anyone suggest a neater way
> to do this? Maybe, there is a way to use Z-formatted READ here?

You've got it, using ReadS (read from string). It looks like you have five
bytes so you need a very long integer to store this, giving me the first
chance I've had to use IDL 5.2's new data types:

IDL> h_string = '40000FC0DA'
IDL> long64=0LL
IDL> ReadS, h_string, long64, Format='(Z0)'
IDL> help, long64
LONG64 LONG64 = 274878939354

Hope this works OK for you.

Cheers,
--
-Dick

Dick Jackson Fanning Software Consulting, Canadian Office
djackson@dfanning.com Calgary, Alberta Voice/Fax: (403) 242-7398
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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Re: hexadecimal variables

By: Dick Jackson on Thu, 22 April 1999 00:00

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