[Bug c++/114242] Coroutine with lambda-coroutine and operator new does not compile
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114242 Andreas Fertig changed: What|Removed |Added Resolution|--- |INVALID Status|UNCONFIRMED |RESOLVED --- Comment #6 from Andreas Fertig --- The behavior of g++ is correct.
[Bug c++/114242] Coroutine with lambda-coroutine and operator new does not compile
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114242 --- Comment #5 from Andreas Fertig --- My latest conclusion is that my code is indeed invalid. In the case of the lambda, I have a class type. http://eel.is/c++draft/dcl.fct.def.coroutine#4 says that in such a case, p1 is an lvalue of *this. If I modify my original example, g++ and MSVC accept the code, but Clang now rejects it: https://compiler-explorer.com/z/1hhxfYW1v I will open an issue there and let them confirm. But I think we can close this issue for g++.
[Bug c++/114242] Coroutine with lambda-coroutine and operator new does not compile
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114242 --- Comment #4 from Andreas Fertig --- Thanks for looking into the issue! While CWG 2585 tweaks the wording, my reading is that the code should be valid even with C++20. Regardless of that, without the lambda, the code compiles and uses a custom allocator. After playing with the test case, I could reduce it to having only a coroutine-lambda with a promise_type that has a custom operator new: https://compiler-explorer.com/z/W53nKsfxG Sorry for not having that done initially! I suspect this case wasn't implemented (because it isn't obvious?).
[Bug c++/114242] Coroutine with lambda-coroutine and operator new does not compile
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114242 Andrew Pinski changed: What|Removed |Added Keywords||C++-coroutines, ||rejects-valid Alias||cwg2585 Blocks||94404 --- Comment #3 from Andrew Pinski --- Yes it looks like GCC does not implement CWG 2585. https://cplusplus.github.io/CWG/issues/2585.html Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94404 [Bug 94404] [meta-bug] C++ core issues
[Bug c++/114242] Coroutine with lambda-coroutine and operator new does not compile
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114242 --- Comment #2 from Andrew Pinski --- Created attachment 57617 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57617=edit testcase
[Bug c++/114242] Coroutine with lambda-coroutine and operator new does not compile
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114242 --- Comment #1 from Andrew Pinski --- Note IIRC C++26 (maybe even 23) changed in this area over C++20 and GCC is following (the initial?) C++20 rules.
