Hi Guys,
Just ran into some unexpected behaviour. I wrote:
chr = 0
serial_hw_read(chr)
if (chr == 0) then return end if
And it did not work like it should. This is how it should be:
if (serial_hw_read(chr) == false) then return end if
However.... the code in _serial_hw_read() is
if PIR1_RCIF then
data = RCREG
PIR1_RCIF = false -- [email protected] 12-sept-08
else
return false ;result = false
end if
When false is returned, there 'data' is not touched. Why doesn't is work
then. Well, because:
function _serial_hw_read(byte *out* data) return bit is
The value 0 assigned is not passed to the function, so it is not returned.
So all works like it should, but is it like we want it to be? I was fooled
here and so might others. Maybe it would be a good idea to never use 'out'
without 'in'? What do you think?
Joep
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