Complex sentence: Integer literals can be made unsigned with U suffix: for example, 0x FFFFFFFF gives − 1, but 0xFFFFFFFFU gives 4,294,967,295 respectively for a 32-bit code.
Split into simpler sentences: Integer literals can be made unsigned with U suffix. For example, 0x FFFFFFFF gives − 1, but 0xFFFFFFFFU gives 4,294,967,295 for 32-bit code.