id()

bool syten::RepRegister::id	(	Group const &	group,
		RepLabel const &	label,
		Index &	i
	)

Index of group in repRegisterData.

Parameters

group	relevant group, e.g. Group::U1
label	label of the irrep in question
i	output variable containing the index of the group into repRegisterData if known

Returns

true if the irrep is known, i then contains the index; false if the irrep is unknown

References repRegisterData, and std::vector< T >::size().

Referenced by syten::MPS::Lattice::add(), syten::T3N::Lattice::add(), syten::T3N::Lattice::buildIdentity(), syten::STensorImpl::STensor::enable_autodiff(), syten::MPS::SwappableTEBD::exponentiate_factor_mpo(), syten::MPS::Lat::Nil::genFermiLattice(), syten::MPS::Lat::Nil::genFermitJLattice(), syten::MPS::ProjectedPurification::genProjector(), syten::MPS::Lat::U1::gentJGrandCanonical(), syten::MPS::Lattice::get(), syten::IPEPS::Lattice::get(), getId(), syten::STensorImpl::SBasis::operator SBasisId(), syten::Rep::save(), syten::MPS::ParseOperator::siteF(), syten::STensorImpl::Autodiff::svd_adjoint_evaluator(), and syten::T3N::RDMs::OneParticleRDM::twoSite_right_rec().

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