Jerry Van Baren wrote:
Regardless of the in/out debate, we should print a warning if %ll is used but not supported. I would suggest simply printing the "%lld" (or whatever the format is) and pop two longs from the varargs. That would make it clear something is missing and probably wrong.
Better to pop a long long -- two longs will pop too much if we ever have a 64-bit u-boot. It would be perverse to not have 64-bit printf in such a case, but if it has to be manually selected, and only affects long long so as to not be immediately noticed, it could easily happen.
I don't like printing half and discarding half: it will be erroneous with no warning if the upper half != 0.
Yes, but it'd be less erroneous than what we have now.
It would also have endian complications since the half you want to discard depends on the machine's endianness (not insurmountable).
Popping a long long and then casting should take care of that.
-Scott