49736 – [P1102R2] acceptance of invalid lambda syntax in C++23

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Bug 49736 - [P1102R2] acceptance of invalid lambda syntax in C++23

Summary: [P1102R2] acceptance of invalid lambda syntax in C++23

Status:	RESOLVED FIXED

Alias:	None

Product:	clang
Classification:	Unclassified
Component:	C++2b (show other bugs)
Version:	trunk
Hardware:	PC All

Importance:	P enhancement
Assignee:	Unassigned Clang Bugs

URL:
Keywords:

Depends on:
Blocks:

Reported:	2021-03-26 20:44 PDT by 康桓瑋(hewill)
Modified:	2021-03-31 03:21 PDT (History)
CC List:	5 users (show)

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Fixed By Commit(s):

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Description 康桓瑋(hewill) 2021-03-26 20:44:21 PDT

https://godbolt.org/z/oz3x6eeYK

auto l = []<auto> noexcept requires true {};

Although I am not particularly sure, this kind of grammar should be considered wrong?

Comment 1 康桓瑋(hewill) 2021-03-27 10:48:16 PDT

You can see more details in https://stackoverflow.com/questions/66833334/the-validity-of-lambda-expression-with-omitted-parameter-list-in-c23

Comment 2 Marek Kurdej 2021-03-29 01:34:06 PDT

Patch in review: https://reviews.llvm.org/D99489.
Thanks for reporting. I'm the one to blame :).

Comment 3 康桓瑋(hewill) 2021-03-29 01:45:12 PDT

Just want to make c++ better, thank you for your hard work and contribution.

Comment 4 Marek Kurdej 2021-03-30 05:02:23 PDT

Fixed in https://reviews.llvm.org/rGa99b8ae3909106d831d880c1647dabe92f470290.

Comment 5 Marek Kurdej 2021-03-31 03:21:13 PDT

Changed component to C++2b.