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Re: Can you do 'unions' with pv-wave? [message #3176]

Tue, 22 November 1994 07:22

thompson
Messages: 584
Registered: August 1991

Senior Member

jgavin@mksol.dseg.ti.com (Jeffrey S. Gavin) writes:

> Is there a way to have a single variable viewed as multiple types, similar
> to the way unions work in C. For example:

(rest deleted for brevity)

You can always do type conversions on the fly. For example, if you read in a
100 bytes from a file (e.g. into B), and want to treat bytes 20-29 as ten short
integers, you can say

PRINT, FIX(B,20,10)

Where 20 is the starting point in the B array, and 10 is the number of values
to extract.

The same is true for the functions BYTE, LONG, FLOAT, DOUBLE, and COMPLEX. If
you want to extract strings, then you simply say something like

PRINT, STRING(B(30:35))

Bill Thompson

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[Message index]

		Re: Can you do 'unions' with pv-wave? By: thompson on Tue, 22 November 1994 07:22
		Re: Can you do 'unions' with pv-wave? By: sterner on Mon, 21 November 1994 17:47
		Re: Can you do 'unions' with pv-wave? By: hahn on Mon, 21 November 1994 17:08

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