Created on 2019-10-23.00:00:00 last changed 3 weeks ago
Additional notes (January, 2023):
Forwarded to SG12 with paper issue 1406, by decision of the CWG and SG12 chairs.
(From National Body comment US 027 on the C++20 DIS.)
Subclause 5.4 [lex.pptoken] paragraph 2 specifies:
If a U+0027 apostrophe or a U+0022 quotation mark character matches the last category, the behavior is undefined.
Undefined behavior during lexing is not acceptable. This ought to be ill-formed.
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