https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67844
Bug ID: 67844
Summary: Cannot make tuple of class with template constructor
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: rbock at eudoxos dot de
Target Milestone: ---
Created attachment 36443
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36443&action=edit
struct with template constructor, instantiate, try to make_tuple from the
instance
If the constructor of a class is a template (see attached code), trying to call
make_tuple on an instance of this class fails to compile with g++-6.0.0.
The first error in the output is
include/c++/6.0.0/type_traits:138:12: error: invalid use of incomplete type
‘struct std::is_convertible<const std::tuple<A>&, A>’
g++-4.9 as well as clang-3.[456] compile the code just fine.
