[diff.header.iso646.h]

# Annex C (informative) Compatibility [[diff]](./#diff)

## C.8 C standard library [[diff.library]](diff.library#diff.header.iso646.h)

### C.8.3 Modifications to definitions [[diff.mods.to.definitions]](diff.mods.to.definitions#diff.header.iso646.h)

#### C.8.3.3 Header <iso646.h> [diff.header.iso646.h]

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/compatibility.tex#L3733)

The tokensand,and_eq,bitand,bitor,compl,not,not_eq,or,or_eq,xor,
andxor_eq are keywords in C++ ([[lex.key]](lex.key "5.12 Keywords")),
and are not introduced as macros
by [<iso646.h>](iso646.h.syn#header:%3ciso646.h%3e "17.15.3 Header <iso646.h> synopsis [iso646.h.syn]")[.](#1.sentence-1)