https://gcc.gnu.org/onlinedocs/gcc/Binary-constants.html

This would allow a simpler solution to binary number constants and the file binary.h https://github.com/arduino/Arduino/blob/master/hardware/arduino/avr/cores/arduino/binary.h becomes unnecessary.

Motivation: Standard, less complex, portability, reduce error risk (unsigned/signed/number size), reduce source code size.

Drawbacks: Large ripple effect on code that uses the Arduino "binary" format.