Hi Mike,

2010/4/6 m...@watty <[email protected]>:
> That will break some code!
Sorry about that...
Will it break so much code that's it's worth while to take special
measures, e.g. make the check optional?

> I recommend 255 as Null on microcontrollers / PIC as it's not
> typically used as ASCII and returned reading uninitialised eeprom.
>
> Assuming you want a Null terminated string.
> Just because C uses 0 (original Mini-Computers) doesn't make it a good
> idea for PIC and JAL.
>
> I also use 255 for no keypress.
Zero *is* NULL according to the ascii defintion and due to the
widespread use of C and C++ (despite it's historal background) many
people are used to it.
So i guess it is a matter of habit...

Joep

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