https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103563
Bug ID: 103563
Summary: ostream operator<< resolved to variant containing type
resulting in stack overflow
Product: gcc
Version: 11.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: samuel.hangouet at gmail dot com
Target Milestone: ---
Created attachment 51928
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51928&action=edit
Minimal test case.
$ g++-11 --version
g++-11 (Ubuntu 11.1.0-1ubuntu1~20.04) 11.1.0
(...)
$ g++-11 -std=c++2a test.cpp -o test
$ ./test
Segmentation fault (core dumped)
In my opinion, this file should not compile as no operator<< is provided for
custom type V.
Instead, the operator<< taking the variant which contains V is called,
resulting in stack overflow at runtime.
