CWG2689 [basic.fundamental] No mention of cv std::nullptr_t in basic.fundamental

[anooprana986]

Full name of submitter (unless configured in github; will be published with the issue): Anoop Rana

Reference (section label): [basic.fundamental]

Link to reflector thread (if any): #193 (comment)

Issue description: There is no mention of cv qualified std::nullptr_t in basic.fundamental.

Suggested resolution:

Add wording for cv qualified version of std::nullptr_t in [basic.fundamental].

[jensmaurer]

CWG2689

[languagelawyer]

Isn't

The types denoted by std::nullptr_t, const std::nullptr_t, volatile std::nullptr_t, and const volatile std::nullptr_t are distinct types.

an extremely long and boring way to say

the type of nullptr is a non-class, non-array object type

?

[languagelawyer]

How about

[lex.nullptr]/1

The pointer literal is the keyword nullptr. It has a distinct fundamental type ([basic.fundamental]) std​::​nullptr_t.

[basic.fundamental]/16

The type of nullptr prvalue (and any its cv-qualified version) is a non-class, non-array object type, distinct from other types in this subclause. A value of type std​::​nullptr_t is a null pointer constant ([conv.ptr])…