- Title
- Are new/delete identifiers or preprocessing-op-or-punc?
- Status
- nad
- Section
- 5.5 [lex.pptoken]
- Submitter
- Martin v. Loewis
Created on 2002-07-30.00:00:00 last changed 1 month ago
Messages
Additional notes (October, 2025)
Paper P2843 (adopted in June, 2025) made it ill-formed to #define a macro that has the spelling of a keyword (15.7.1 [cpp.replace.general] paragraph 9). Subclause 5.8 [lex.operators] clearly specifies that the only textual preprocessing-op-or-punc are the alternative tokens.
5.5 [lex.pptoken] paragraph 2 specifies that there are 5 categories of tokens in phases 3 to 6. With 5.8 [lex.operators] paragraph 1, it is unclear whether new is an identifier or a preprocessing-op-or-punc; likewise for delete. This is relevant to answer the question whether
#define delete foo
is a well-formed control-line, since that requires an identifier after the define token.
(See also issue 189.)
| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2025-10-28 21:40:00 | admin | set | messages: + msg8181 |
| 2025-10-28 21:40:00 | admin | set | status: open -> nad |
| 2025-03-05 21:47:19 | admin | set | status: drafting -> open |
| 2006-04-22 00:00:00 | admin | set | status: open -> drafting |
| 2002-07-30 00:00:00 | admin | create | |