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cdb wrote:
> I'm having one of my major off days!
> 
> I'm trying to invert the contents of an array, and am going all over 
> the place to achieve  what I think should be only a couple of lines of 
> 'c' code.
> 
> I have a constant array containing font pixel data for a graphics LCD.
> 
> I access it by,
> 
> BYTE *fnt;
>    
>    fnt = GLCD_font_set(ch);
> 
> No problems here.
> 
> However this does not work
> 
> *fnt = *fnt ^ 0xFF; '' take contents of fnt and invert, place back in 
> fnt.
> 
> Nor does bracketing fnt's,  contents do not alter.
> 

Try *fnt ^= 0xFF;


- --
Brendan Gillatt | GPG Key: 0xBF6A0D94
brendan {a} brendangillatt (dot) co (dot) uk
http://www.brendangillatt.co.uk
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