https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91382
Bug ID: 91382
Summary: Missing pedwarn when using [[maybe_unused]] in C++14
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: mpolacek at gcc dot gnu.org
Target Milestone: ---
void foo([[maybe_unused]] int i) { }
$ ./cc1plus -quiet q.C -std=c++14 -pedantic -Wall -W
# nothing
But maybe_unused came in C++17, so we ought to pedwarn in <C++17 modes. Other
attributes most likely have the same issue.