|
|
|
|
|
|
by volta83
1755 days ago
|
|
|
Either the writer of the concept "opts-in to making the concept opt-in" (e.g. using the approach above), and that way, classes must opt in, _or_ classes opt-out by not implementing the concept API. There is no way for a class to both implement the concept API and opt-out. The only way to support it is for the C++ concept writer to make their concept opt-in. |
|
|