get_available_singles Function

public pure function get_available_singles(GAS_spec, det_I) result(singles_exc_list)

@brief Get all single excitated determinants from det_I that are allowed under GAS constraints.

Arguments

Type	Intent	Optional	Attributes		Name
class(GASSpec_t),	intent(in)			::	GAS_spec
integer,	intent(in)			::	det_I(:)

Return Value integer, allocatable, (:,:)

Dimension is (nEl, n_configurations)

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