https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122163
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Target Milestone|--- |13.5
Last reconfirmed| |2025-10-08
Summary|Lambda use of rvalue ref |[13/14/15/16 Regression]
|not considered an lvalue |Lambda use of rvalue ref
| |not considered an lvalue
Status|UNCONFIRMED |NEW
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
4.7.0-4.9.0 used to ICE:
```
<source>: In lambda function:
<source>:8:21: internal compiler error: in cp_build_modify_expr, at
cp/typeck.c:7445
auto a = [] { r = 2; };
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
```
5,8 produced a slightly different error message:
```
<source>: In lambda function:
<source>:8:21: error: using xvalue (rvalue reference) as lvalue
auto a = [] { r = 2; };
^
```
6/7 accepted the one with by-reference capature. So that is a regression at
least for that case.
GCC 8 is when the current error message is produced.
