just to clarify.
I never asked what is a uint_8
what I asked is where the definitiions that I knew must exist were documented for the arduino project.
I ask for two reasons.
a) to help improve the documentation so others might learn the sort of short cuts that us programers expect.
as it says at the top , in blue, on the front page http://arduino.cc/
Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.
and b)
each and every community I work in, has their own 'standard'. Some use uint8, some uint_8, some Uint8t
etc. there are many different 'standards'. I wanted to know what the arduino community , working together had decided upon, and where that was documented so I would follow the community.