const OEResidue& OEAtomGetResidue(const OEAtomBase *atom)
This function is used to retrieve the OEResidue
associated with an
OEAtomBase
. The OEResidue
class is used to store information
used in biopolymer processing, e.g. proteins and nucleic acids,
on a per-atom basis. The residue properties of an atom may be set using the
OEAtomSetResidue
function.