Created on 2019-10-23.00:00:00 last changed 2 months ago
Additional notes (January, 2023):
Forwarded to SG12 with paper issue 1405, by decision of the CWG and SG12 chairs.
[ Resolved by paper P2621R2 (Undefined behavior in the lexer), adopted in June, 2023. ]
(From National Body comments US 024 and US 025 on the C++20 DIS.)
Subclause 5.2 [lex.phases] bullet 1.2 specifies:
Except for splices reverted in a raw string literal, if a splice results in a character sequence that matches the syntax of a universal-character-name, the behavior is undefined.
Undefined behavior during lexing is not acceptable. The behavior ought to be well-defined, ill-formed, or conditionally-supported.
|2023-09-22 05:34:15||admin||set||status: open -> dr|
|2023-01-05 08:22:04||admin||set||messages: + msg7107|