https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116703
Bug ID: 116703
Summary: Use of enum from a template instantiation fails for no
apparent reason
Product: gcc
Version: 14.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: eyalroz1 at gmx dot com
Target Milestone: ---
(original StackOverflow discussion:
https://stackoverflow.com/q/73479613/1593077)
Consider the following code:
enum kind_t { kind1, kind2 };
template <kind_t Kind> struct foo {};
template <> struct foo<kind1> {
enum named : int;
};
enum foo<kind1>::named : int {
named1 = 123,
named2 = 456,
};
This fails to compile with GCC 14.2, but compiles with MSVC 19.40 and clang
18.1.0:
https://godbolt.org/z/basEfMj8M
The error message is:
error: cannot add an enumerator list to a template instantiation
9 | enum foo<kind1>::named : int {
| ^~~~~~~~~~
AFAICT, this code should work.
