/usr/include/rdkit/GraphMol/Substruct/SubstructMatch.h is in librdkit-dev 201503-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright (C) 2001-2015 Greg Landrum and Rational Discovery LLC
//
// @@ All Rights Reserved @@
// This file is part of the RDKit.
// The contents are covered by the terms of the BSD license
// which is included in the file license.txt, found at the root
// of the RDKit source tree.
//
#ifndef _RD_SUBSTRUCTMATCH_H__
#define _RD_SUBSTRUCTMATCH_H__
// std bits
#include <vector>
namespace RDKit{
class ROMol;
class Atom;
class Bond;
//! \brief used to return matches from substructure searching,
//! The format is (queryAtomIdx, molAtomIdx)
typedef std::vector< std::pair<int,int> > MatchVectType;
//! Find a substructure match for a query in a molecule
/*!
\param mol The ROMol to be searched
\param query The query ROMol
\param matchVect Used to return the match
(pre-existing contents will be deleted)
\param recursionPossible flags whether or not recursive matches are allowed
\param useChirality use atomic CIP codes as part of the comparison
\param useQueryQueryMatches if set, the contents of atom and bond queries
will be used as part of the matching
\return whether or not a match was found
*/
bool SubstructMatch(const ROMol &mol,const ROMol &query,
MatchVectType &matchVect,
bool recursionPossible=true,
bool useChirality=false,
bool useQueryQueryMatches=false);
//! Find all substructure matches for a query in a molecule
/*!
\param mol The ROMol to be searched
\param query The query ROMol
\param matchVect Used to return the matches
(pre-existing contents will be deleted)
\param uniquify Toggles uniquification (by atom index) of the results
\param recursionPossible flags whether or not recursive matches are allowed
\param useChirality use atomic CIP codes as part of the comparison
\param useQueryQueryMatches if set, the contents of atom and bond queries
will be used as part of the matching
\param maxMatches The maximum number of matches that will be returned.
In high-symmetry cases with medium-sized molecules, it is very
easy to end up with a combinatorial explosion in the number of
possible matches. This argument prevents that from having
unintended consequences
\return the number of matches found
*/
unsigned int SubstructMatch(const ROMol &mol,const ROMol &query,
std::vector< MatchVectType > &matchVect,
bool uniquify=true,bool recursionPossible=true,
bool useChirality=false,
bool useQueryQueryMatches=false,
unsigned int maxMatches = 1000);
}
#endif
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