https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90489
Bug ID: 90489
Summary: Attributes no longer allowed in lambdas with trailing
return type
Product: gcc
Version: 9.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: mathias at gaunard dot com
Target Milestone: ---
As of GCC 8.2, the following code is well-formed:
auto const f = [](int) __attribute__((always_inline)) -> int { return 0; };
With GCC 9.1, it fails to compile.
Note however that the following remains valid:
auto const f = [](int) __attribute__((always_inline)) { return 0; };
So it looks like there is some bad interaction in the parsing between
attributes and the late return type.
