Annex C (informative) Compatibility [diff]

C.7 C standard library [diff.library]

C.7.3 Modifications to definitions [diff.mods.to.definitions]

C.7.3.4 Header <iso646.h> [diff.header.iso646.h]

The tokens and, and_­eq, bitand, bitor, compl, not, not_­eq, or, or_­eq, xor, and xor_­eq are keywords in C++ ([lex.key]), and are not introduced as macros by <iso646.h>.