diff -up xdrawchem-1.9.9/xdrawchem/molecule_obmol.cpp.gcc6 xdrawchem-1.9.9/xdrawchem/molecule_obmol.cpp
--- xdrawchem-1.9.9/xdrawchem/molecule_obmol.cpp.gcc6 2005-11-30 03:55:06.000000000 +0100
+++ xdrawchem-1.9.9/xdrawchem/molecule_obmol.cpp 2016-02-17 16:03:30.652748203 +0100
@@ -198,7 +198,7 @@ OBMol * Molecule::convertToOBMol() {
atom.SetType( type );
if (!obmol->AddAtom(atom))
- return(false);
+ return(NULL);
atom.Clear();
}
@@ -212,7 +212,7 @@ OBMol * Molecule::convertToOBMol() {
bst = tmp_bond->Stereo();
if (bst == STEREO_UP) flag |= OB_WEDGE_BOND;
if (bst == STEREO_DOWN) flag |= OB_HASH_BOND;
- if (!obmol->AddBond(start,end,order,flag)) return(false);
+ if (!obmol->AddBond(start,end,order,flag)) return(NULL);
}
obmol->EndModify();