Created on 2019-10-23.00:00:00 last changed 3 weeks ago
Additional notes (January, 2023):
Forwarded to SG12 with paper issue 1405, by decision of the CWG and SG12 chairs.
(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.
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