2 comments

[ 5.1 ms ] story [ 17.4 ms ] thread
Nice, but next time use (counter = (counter + 1) % SIZE) instead of burying an if() statement in a macro.
printf will do a lot more damage than the if.

In my logging system I write the data to the buffer in the natural format (without conversion), preceded by a type-marker. Then I have a tool to unpack the data entries and format them into text.