Exotic architectures the standards committees care about

Question

I know that the C and C++ standards leave many aspects of the language implementation-defined just because if there is an architecture with other characteristics, it would b

Answer 1

I found this link listing some systems where CHAR_BIT != 8. They include

some TI DSPs have CHAR_BIT == 16

BlueCore-5 chip (a Bluetooth chip from Cambridge Silicon Radio) which has CHAR_BIT == 16.

And of course there is a question on Stack Overflow: What platforms have something other than 8-bit char

As for non two's-complement systems there is an interesting read on comp.lang.c++.moderated. Summarized: there are platforms having ones' complement or sign and magnitude representation.