https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101717
Steven Sun <StevenSun2021 at hotmail dot com> changed:
What |Removed |Added
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CC| |StevenSun2021 at hotmail dot
com
--- Comment #3 from Steven Sun <StevenSun2021 at hotmail dot com> ---
This bug is not introduced in GCC 12.
The relevant code fragment is last edited by g:91e534b0d
in `gcc/cp/lambda.c`
```
gcc_checking_assert
(init && (TREE_TYPE (TREE_TYPE (init))
== current_nonlambda_class_type ()));
```
The assertion fails since long ago. (init == 0 in this case)
Before GCC 12, the `gcc_checking_assert` is `(void)0` in release version,
leaving everything fine. Somehow `gcc_checking_assert` starts working now, and
aborts the program.
My insight on the problem:
The program seems never think of a situation "a lambda inside a lambda inside a
NSDMI`. We need to amend the logic here.
"here" means
https://gcc.gnu.org/git?p=gcc.git;a=blob;f=gcc/cp/lambda.c;h=2e9d38bbe832702804ddcaffc4024ce930a74843;hb=refs/heads/master#l755
By the way, does anyone know other magics like g:hash?
