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Re: [avr-gcc-list] calling function pointers via pointers ?

From: Vincent Trouilliez
Subject: Re: [avr-gcc-list] calling function pointers via pointers ?
Date: Thu, 29 Sep 2005 18:08:32 +0200

> I tried the '&' sign, but I get this error:
> ui.c:63: warning: initialization discards qualifiers from pointer target
> type
> I am really lost as to how to specify the address of menu_sub in
> ui_menu_main....

> Well, once I manage to initialise the main menu with the address of the
> sub menu, I will be ready for the final big test.... try to actually run
> the sub menu, that is, is my ui_menu_run() function (the one that's in
> charge of displaying a menu), re-entrant or not ! No-idea ! I think
> either it will work first time, or it will screw up big time, but I
> don't think there is much space for nuances in between !! :-P
> --
> Vince

Well, seeing as avrdude is so fast at programming the AVR, I decided to
ignore the compiler warning and run the program anyway... and wow,
what's happening, hey wait a minute, but, no, really ? Yes no doubt, it
WORKS !!!! The sub menu is properly displayed, I can exit it and come
back to the main menu no problem... it just works basically !

Well, I am well pleased, I have now a sizable chunk of the project
that's working, might now be time to set up a CVS project and start
committing as I progress...

Well, I guess this marks the end of Vince's menuing system adventure
then ! It's been an open source project so to speak, with many people
contributing, but I would like to thanks the two main contributors,
David Kelly and David Brown, thanks for the support ! :-)

I can now start writing some functions to complete the user interface...


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