Difference between nested structures and unions???

hutch-- · January 20, 2010, 09:51:50 PM

:bg

Damn, somebody has taken me seriously at last. :P

donkey · January 21, 2010, 02:04:12 AM

Quote from: hutch-- on January 20, 2010, 09:51:50 PM
:bg

Damn, somebody has taken me seriously at last. :P

He must have been drunk...

dedndave · January 21, 2010, 03:45:12 AM

drunk AND using his hindsight :P
we always take you seriously, Hutch - you have the hammer :bg

sinsi · January 21, 2010, 03:51:54 AM

Quote from: donkey on January 21, 2010, 02:04:12 AMHe must have been drunk...

Wasn't me this time :(

Astro · January 22, 2010, 12:01:40 PM

Hi,

Thanks!!

I presume then you can only use it to store one item at a time in the Union?

Best regards,
Robin.

Bill Cravener · January 22, 2010, 12:35:12 PM

Quote from: sinsi on January 21, 2010, 03:51:54 AM
Quote from: donkey on January 21, 2010, 02:04:12 AMHe must have been drunk...
Wasn't me this time :(

No, but I've been known to be. :wink

hutch-- · January 22, 2010, 01:27:27 PM

Robin,

Yes, a union that has for example 3 data sizes in it with the largest being 4 bytes will hold 1, 2 or 4 bytes of data in the 4 bytes available. They are very useful for unusual function that need different data sizes passed to them but they are regularly used nested inside conventional structures whe4re a member needs to be able to handle different data sizes or types.

Just for example you could make a union that held either. 64 bytes of string data or a 10 byte REAL10 FP value.

Astro · January 28, 2010, 06:50:20 PM

Great! Thanks!

Best regards,
Robin.

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Difference between nested structures and unions???