- Title
- constexpr function requirements and class scope
- Status
- nad
- Section
- 9.2.6 [dcl.constexpr]
- Submitter
- Jason Merrill
Created on 2011-05-12.00:00:00 last changed 160 months ago
Messages
Date: 2011-08-15.00:00:00
Rationale (August, 2011):
The requirements apply to definitions, not declarations.
Date: 2022-11-20.07:54:16
A constexpr function is required to have literal argument and return types. Consider an example like:
template <class T> struct B {
constexpr B(T) { }
};
struct A {
B<A> b;
};
Whether B(A) is constexpr depends on whether A is literal, which depends on whether B<A> is literal, which depends on whether B(A) is constexpr.
| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2012-09-24 00:00:00 | admin | set | messages: + msg4023 |
| 2011-05-12 00:00:00 | admin | create | |