https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106024
Bug ID: 106024
Summary: ICE on missing template keyword in template method
call in pack expansion
Product: gcc
Version: 12.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: kacper.slominski72 at gmail dot com
Target Milestone: ---
Created attachment 53162
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53162&action=edit
-freport-bug output
The following code, when compiled with -std=c++20, causes an ICE. Attached is
the file produced by -freport-bug.
auto foo() {
return [&] <auto...args> () {
return [] (auto...) {} (
[] <auto T> (auto...) {
return 1;
}.operator()<args>(args...)...
);
}.operator()<1, 2, 3>();
}
I'm tempted to say this is ICE-on-invalid since adding the missing "template"
keyword before "operator()" gets rid of it, but I'm not 100% sure.
