15 Preprocessing directives [cpp]

15.2 Conditional inclusion [cpp.cond]

Table 20: __has_­cpp_­attribute values [tab:cpp.cond.ha]
Attribute
Value
carries_­dependency
200809L
deprecated
201309L
fallthrough
201603L
likely
201803L
maybe_­unused
201603L
no_­unique_­address
201803L
nodiscard
201907L
noreturn
200809L
unlikely
201803L