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    cf0bc6a1
    mmcif writer: resolve linking errors for certain usages of ChemClass · cf0bc6a1
    Studer Gabriel authored
    Assignment of ChemClass values happens inside the ChemClass definition
    in the header file. Let's say you're using something like:
    ChemClass::WATER. If this is resolved at compile time, you won't have
    any problem. If not, the linker searches for it in the mol shared object
    file. BUT ITS NOT THERE. The hope is that defining the types as an
    enum inside the ChemClass definition helps.
    cf0bc6a1
    History
    mmcif writer: resolve linking errors for certain usages of ChemClass
    Studer Gabriel authored
    Assignment of ChemClass values happens inside the ChemClass definition
    in the header file. Let's say you're using something like:
    ChemClass::WATER. If this is resolved at compile time, you won't have
    any problem. If not, the linker searches for it in the mol shared object
    file. BUT ITS NOT THERE. The hope is that defining the types as an
    enum inside the ChemClass definition helps.
chem_class.hh 2.47 KiB
//------------------------------------------------------------------------------
// This file is part of the OpenStructure project <www.openstructure.org>
//
// Copyright (C) 2008-2020 by the OpenStructure authors
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License as published by the Free
// Software Foundation; either version 3.0 of the License, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
// details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this library; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//------------------------------------------------------------------------------
#ifndef OST_BASE_CHEM_CLASS_HH
#define OST_BASE_CHEM_CLASS_HH

#include <ost/mol/module_config.hh>


namespace ost { namespace mol {

struct DLLEXPORT ChemClass {

  typedef enum {
    PEPTIDE_LINKING   ='P',
    D_PEPTIDE_LINKING ='D',
    L_PEPTIDE_LINKING ='L',
    RNA_LINKING       ='R',
    DNA_LINKING       ='S',
    NON_POLYMER       ='N',
    L_SACCHARIDE      ='X',
    D_SACCHARIDE      ='Y',
    SACCHARIDE        ='Z',
    WATER             ='W',
    UNKNOWN           ='U'
  } Type;
  
  explicit ChemClass(Type chem_class): chem_class_(chem_class) { }

  explicit ChemClass(char type): chem_class_(Type(type)) { }

  ChemClass(): chem_class_(UNKNOWN) { }

  bool operator==(const ChemClass& cc) const {
    return cc.chem_class_ == chem_class_;
  }

  bool operator!=(const ChemClass& cc) const {
    return !this->operator == (cc);
  }

  bool IsPeptideLinking() const {
    return (chem_class_ == PEPTIDE_LINKING ||
            chem_class_ == D_PEPTIDE_LINKING ||
            chem_class_ == L_PEPTIDE_LINKING);
  }
  bool IsNucleotideLinking() const {
    return (chem_class_ == DNA_LINKING || 
            chem_class_ == RNA_LINKING);
  }
  
  bool IsWater() const {
    return chem_class_ == WATER;
  }
  operator char() const {
    return chem_class_;
  }

  bool IsSaccharide() const {
    return (chem_class_ == SACCHARIDE ||
            chem_class_ == L_SACCHARIDE ||
            chem_class_ == D_SACCHARIDE);
  }

private:
  Type chem_class_;
};

}} // ns
#endif