Check if a single excitation is allowed.
Is called once at initialization, so it does not have to be super fast.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| class(GASSpec_t), | intent(in) | :: | this | |||
| type(Excite_1_t), | intent(in) | :: | exc | |||
| integer, | intent(in) | :: | supergroup(:) |