fix in fixing distance for LINK records

src/PDB2Cif.cpp

@@ -5787,6 +5787,8 @@ void PDBFileParser::Parse(std::istream& is, cif::File& result)
 				{ "ptnr1_label_asym_id", "ptnr1_label_seq_id", "ptnr1_label_atom_id", "ptnr1_symmetry",
 				{ "ptnr1_label_asym_id", "ptnr1_label_seq_id", "ptnr1_label_atom_id", "ptnr1_symmetry",
 				  "ptnr2_label_asym_id", "ptnr2_label_seq_id", "ptnr2_label_atom_id", "ptnr2_symmetry" });
 				  "ptnr2_label_asym_id", "ptnr2_label_seq_id", "ptnr2_label_atom_id", "ptnr2_symmetry" });
 
 
+			try
+			{
 				auto a1 = atom_site.find1("label_asym_id"_key == asym1 and "label_seq_id"_key == seq1 and "label_atom_id"_key == atom1);
 				auto a1 = atom_site.find1("label_asym_id"_key == asym1 and "label_seq_id"_key == seq1 and "label_atom_id"_key == atom1);
 				auto a2 = atom_site.find1("label_asym_id"_key == asym2 and "label_seq_id"_key == seq2 and "label_atom_id"_key == atom2);
 				auto a2 = atom_site.find1("label_asym_id"_key == asym2 and "label_seq_id"_key == seq2 and "label_atom_id"_key == atom2);
 
 
@@ -5802,6 +5804,12 @@ void PDBFileParser::Parse(std::istream& is, cif::File& result)
 
 
 				r["pdbx_dist_value"] = distance;
 				r["pdbx_dist_value"] = distance;
 			}
 			}
+			catch (std::exception& ex)
+			{
+				if (cif::VERBOSE)
+					std::cerr << "Error finding atom: " << ex.what() << std::endl;
+			}
+		}
 	}
 	}
 	catch (const std::exception& ex)
 	catch (const std::exception& ex)
 	{
 	{