[apt.git] / apt-pkg / cacheiterators.h

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: cacheiterators.h,v 1.9 1998/11/27 00:07:23 jgg Exp $
/* ######################################################################
   
   Cache Iterators - Iterators for navigating the cache structure
   
   The iterators all provides ++,==,!=,->,* and end for their type.
   The end function can be used to tell if the list has been fully
   traversed.
   
   Unlike STL iterators these contain helper functions to access the data
   that is being iterated over. This is because the data structures can't
   be formed in a manner that is intuitive to use and also mmapable.
   
   For each variable in the target structure that would need a translation
   to be accessed correctly a translating function of the same name is
   present in the iterator. If applicable the translating function will
   return an iterator.

   The DepIterator can iterate over two lists, a list of 'version depends'
   or a list of 'package reverse depends'. The type is determined by the
   structure passed to the constructor, which should be the structure
   that has the depends pointer as a member. The provide iterator has the
   same system.
   
   This header is not user includable, please use apt-pkg/pkgcache.h
   
   ##################################################################### */
									/*}}}*/
// Header section: pkglib
#ifndef PKGLIB_CACHEITERATORS_H
#define PKGLIB_CACHEITERATORS_H

#ifdef __GNUG__
#pragma interface "apt-pkg/cacheiterators.h"
#endif 

// Package Iterator
class pkgCache::PkgIterator
{
   Package *Pkg;
   pkgCache *Owner;
   long HashIndex;

   public:

   enum OkState {NeedsNothing,NeedsUnpack,NeedsConfigure};
      
   // Iteration
   void operator ++(int);
   inline void operator ++() {operator ++(0);};
   inline bool end() const {return Owner == 0 || Pkg == Owner->PkgP?true:false;};

   // Comparison
   inline bool operator ==(const PkgIterator &B) const {return Pkg == B.Pkg;};
   inline bool operator !=(const PkgIterator &B) const {return Pkg != B.Pkg;};
			   
   // Accessors
   inline Package *operator ->() {return Pkg;};
   inline Package const *operator ->() const {return Pkg;};
   inline Package const &operator *() const {return *Pkg;};
   inline operator Package *() {return Pkg == Owner->PkgP?0:Pkg;};
   inline operator Package const *() const {return Pkg == Owner->PkgP?0:Pkg;};
   
   inline const char *Name() const {return Pkg->Name == 0?0:Owner->StrP + Pkg->Name;};
   inline const char *Section() const {return Pkg->Section == 0?0:Owner->StrP + Pkg->Section;};
   inline const char *TargetDist() const {return Pkg->TargetDist == 0?0:Owner->StrP + Pkg->TargetDist;};
   inline VerIterator VersionList() const;
   inline VerIterator TargetVer() const;
   inline VerIterator CurrentVer() const;
   inline DepIterator RevDependsList() const;
   inline PrvIterator ProvidesList() const;
   inline unsigned long Index() const {return Pkg - Owner->PkgP;};
   OkState State() const;
   
   // Constructors
   inline PkgIterator(pkgCache &Owner) : Owner(&Owner), HashIndex(-1)
   {
      Pkg = Owner.PkgP;
      operator ++(0);
   };
   inline PkgIterator(pkgCache &Owner,Package *Trg) : Pkg(Trg), Owner(&Owner),
          HashIndex(0) 
   { 
      if (Pkg == 0)
	 Pkg = Owner.PkgP;
   };
   inline PkgIterator() : Pkg(0), Owner(0), HashIndex(0) {};
};

// Version Iterator
class pkgCache::VerIterator
{
   Version *Ver;
   pkgCache &Owner;
   
   void _dummy();
   
   public:

   // Iteration
   void operator ++(int) {if (Ver != Owner.VerP) Ver = Owner.VerP + Ver->NextVer;};
   inline void operator ++() {operator ++(0);};
   inline bool end() const {return Ver == Owner.VerP?true:false;};
   inline void operator =(const VerIterator &B) {Ver = B.Ver;};
   
   // Comparison
   inline bool operator ==(const VerIterator &B) const {return Ver == B.Ver;};
   inline bool operator !=(const VerIterator &B) const {return Ver != B.Ver;};
   int CompareVer(const VerIterator &B) const;
   
   // Accessors
   inline Version *operator ->() {return Ver;};
   inline Version const *operator ->() const {return Ver;};
   inline Version &operator *() {return *Ver;};
   inline Version const &operator *() const {return *Ver;};
   inline operator Version *() {return Ver == Owner.VerP?0:Ver;};
   inline operator Version const *() const {return Ver == Owner.VerP?0:Ver;};
   
   inline const char *VerStr() const {return Ver->VerStr == 0?0:Owner.StrP + Ver->VerStr;};
   inline const char *Section() const {return Ver->Section == 0?0:Owner.StrP + Ver->Section;};
   inline PkgIterator ParentPkg() const {return PkgIterator(Owner,Owner.PkgP + Ver->ParentPkg);};
   inline DepIterator DependsList() const;
   inline PrvIterator ProvidesList() const;
   inline VerFileIterator FileList() const;
   inline unsigned long Index() const {return Ver - Owner.VerP;};
   bool Downloadable() const;
   const char *PriorityType();
   
   inline VerIterator(pkgCache &Owner,Version *Trg = 0) : Ver(Trg), Owner(Owner) 
   { 
      if (Ver == 0)
	 Ver = Owner.VerP;
   };
};

// Dependency iterator
class pkgCache::DepIterator
{
   Dependency *Dep;
   enum {DepVer, DepRev} Type;
   pkgCache *Owner;
   
   void _dummy();
   
   public:

   // Iteration
   void operator ++(int) {if (Dep != Owner->DepP) Dep = Owner->DepP +
	(Type == DepVer?Dep->NextDepends:Dep->NextRevDepends);};
   inline void operator ++() {operator ++(0);};
   inline bool end() const {return Owner == 0 || Dep == Owner->DepP?true:false;};
   
   // Comparison
   inline bool operator ==(const DepIterator &B) const {return Dep == B.Dep;};
   inline bool operator !=(const DepIterator &B) const {return Dep != B.Dep;};

   // Accessors
   inline Dependency *operator ->() {return Dep;};
   inline Dependency const *operator ->() const {return Dep;};
   inline Dependency &operator *() {return *Dep;};
   inline Dependency const &operator *() const {return *Dep;};
   inline operator Dependency *() {return Dep == Owner->DepP?0:Dep;};
   inline operator Dependency const *() const {return Dep == Owner->DepP?0:Dep;};
   
   inline const char *TargetVer() const {return Dep->Version == 0?0:Owner->StrP + Dep->Version;};
   inline PkgIterator TargetPkg() {return PkgIterator(*Owner,Owner->PkgP + Dep->Package);};
   inline PkgIterator SmartTargetPkg() {PkgIterator R(*Owner);SmartTargetPkg(R);return R;};
   inline VerIterator ParentVer() {return VerIterator(*Owner,Owner->VerP + Dep->ParentVer);};
   inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[Dep->ParentVer].ParentPkg);};
   inline bool Reverse() {return Type == DepRev;};
   inline unsigned long Index() const {return Dep - Owner->DepP;};
   bool IsCritical();
   void GlobOr(DepIterator &Start,DepIterator &End);
   Version **AllTargets();   
   bool SmartTargetPkg(PkgIterator &Result);
   const char *CompType();
   const char *DepType();
   
   inline DepIterator(pkgCache &Owner,Dependency *Trg,Version * = 0) :
          Dep(Trg), Type(DepVer), Owner(&Owner) 
   {
      if (Dep == 0)
	 Dep = Owner.DepP;
   };
   inline DepIterator(pkgCache &Owner,Dependency *Trg,Package *) :
          Dep(Trg), Type(DepRev), Owner(&Owner)
   {
      if (Dep == 0)
	 Dep = Owner.DepP;
   };
   inline DepIterator() : Dep(0), Type(DepVer), Owner(0) {};
};

// Provides iterator
class pkgCache::PrvIterator
{
   Provides *Prv;
   enum {PrvVer, PrvPkg} Type;
   pkgCache *Owner;
   
   void _dummy();
   
   public:

   // Iteration
   void operator ++(int) {if (Prv != Owner->ProvideP) Prv = Owner->ProvideP +
	(Type == PrvVer?Prv->NextPkgProv:Prv->NextProvides);};
   inline void operator ++() {operator ++(0);};
   inline bool end() const {return Prv == Owner->ProvideP?true:false;};
   
   // Comparison
   inline bool operator ==(const PrvIterator &B) const {return Prv == B.Prv;};
   inline bool operator !=(const PrvIterator &B) const {return Prv != B.Prv;};

   // Accessors
   inline Provides *operator ->() {return Prv;};
   inline Provides const *operator ->() const {return Prv;};
   inline Provides &operator *() {return *Prv;};
   inline Provides const &operator *() const {return *Prv;};
   inline operator Provides *() {return Prv == Owner->ProvideP?0:Prv;};
   inline operator Provides const *() const {return Prv == Owner->ProvideP?0:Prv;};

   inline const char *Name() const {return Owner->StrP + Owner->PkgP[Prv->ParentPkg].Name;};
   inline const char *ProvideVersion() const {return Prv->ProvideVersion == 0?0:Owner->StrP + Prv->ProvideVersion;};
   inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Prv->ParentPkg);};
   inline VerIterator OwnerVer() {return VerIterator(*Owner,Owner->VerP + Prv->Version);};
   inline PkgIterator OwnerPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[Prv->Version].ParentPkg);};
   inline unsigned long Index() const {return Prv - Owner->ProvideP;};

   inline PrvIterator(pkgCache &Owner,Provides *Trg,Version *) :
          Prv(Trg), Type(PrvVer), Owner(&Owner) 
   {
      if (Prv == 0)
	 Prv = Owner.ProvideP;
   };
   inline PrvIterator(pkgCache &Owner,Provides *Trg,Package *) : 
          Prv(Trg), Type(PrvPkg), Owner(&Owner)
   {
      if (Prv == 0)
	 Prv = Owner.ProvideP;
   };
};

// Package file 
class pkgCache::PkgFileIterator
{
   pkgCache *Owner;
   PackageFile *File;

   public:

   // Iteration
   void operator ++(int) {if (File!= Owner->PkgFileP) File = Owner->PkgFileP + File->NextFile;};
   inline void operator ++() {operator ++(0);};
   inline bool end() const {return File == Owner->PkgFileP?true:false;};

   // Comparison
   inline bool operator ==(const PkgFileIterator &B) const {return File == B.File;};
   inline bool operator !=(const PkgFileIterator &B) const {return File != B.File;};
			   
   // Accessors
   inline PackageFile *operator ->() {return File;};
   inline PackageFile const *operator ->() const {return File;};
   inline PackageFile const &operator *() const {return *File;};
   inline operator PackageFile *() {return File == Owner->PkgFileP?0:File;};
   inline operator PackageFile const *() const {return File == Owner->PkgFileP?0:File;};

   inline const char *FileName() const {return File->FileName == 0?0:Owner->StrP + File->FileName;};
   inline const char *Version() const {return File->Version == 0?0:Owner->StrP + File->Version;};
   inline const char *Distribution() const {return File->Distribution == 0?0:Owner->StrP + File->Distribution;};
   inline unsigned long Index() const {return File - Owner->PkgFileP;};

   bool IsOk();
   
   // Constructors
   inline PkgFileIterator(pkgCache &Owner) : Owner(&Owner), File(Owner.PkgFileP + Owner.Head().FileList) {};
   inline PkgFileIterator(pkgCache &Owner,PackageFile *Trg) : Owner(&Owner), File(Trg) {};
};

// Version File 
class pkgCache::VerFileIterator
{
   pkgCache *Owner;
   VerFile *FileP;

   public:

   // Iteration
   void operator ++(int) {if (FileP != Owner->VerFileP) FileP = Owner->VerFileP + FileP->NextFile;};
   inline void operator ++() {operator ++(0);};
   inline bool end() const {return FileP == Owner->VerFileP?true:false;};

   // Comparison
   inline bool operator ==(const VerFileIterator &B) const {return FileP == B.FileP;};
   inline bool operator !=(const VerFileIterator &B) const {return FileP != B.FileP;};
			   
   // Accessors
   inline VerFile *operator ->() {return FileP;};
   inline VerFile const *operator ->() const {return FileP;};
   inline VerFile const &operator *() const {return *FileP;};
   inline operator VerFile *() {return FileP == Owner->VerFileP?0:FileP;};
   inline operator VerFile const *() const {return FileP == Owner->VerFileP?0:FileP;};
  
   inline PkgFileIterator File() const {return PkgFileIterator(*Owner,FileP->File + Owner->PkgFileP);};
   inline unsigned long Index() const {return FileP - Owner->VerFileP;};
      
   inline VerFileIterator(pkgCache &Owner,VerFile *Trg) : Owner(&Owner), FileP(Trg) {};
};

// Inlined Begin functions cant be in the class because of order problems
inline pkgCache::VerIterator pkgCache::PkgIterator::VersionList() const
       {return VerIterator(*Owner,Owner->VerP + Pkg->VersionList);};
inline pkgCache::VerIterator pkgCache::PkgIterator::CurrentVer() const
       {return VerIterator(*Owner,Owner->VerP + Pkg->CurrentVer);};
inline pkgCache::VerIterator pkgCache::PkgIterator::TargetVer() const
       {return VerIterator(*Owner,Owner->VerP + Pkg->TargetVer);};
inline pkgCache::DepIterator pkgCache::PkgIterator::RevDependsList() const
       {return DepIterator(*Owner,Owner->DepP + Pkg->RevDepends,Pkg);};
inline pkgCache::PrvIterator pkgCache::PkgIterator::ProvidesList() const
       {return PrvIterator(*Owner,Owner->ProvideP + Pkg->ProvidesList,Pkg);};
inline pkgCache::PrvIterator pkgCache::VerIterator::ProvidesList() const
       {return PrvIterator(Owner,Owner.ProvideP + Ver->ProvidesList,Ver);};
inline pkgCache::DepIterator pkgCache::VerIterator::DependsList() const
       {return DepIterator(Owner,Owner.DepP + Ver->DependsList,Ver);};
inline pkgCache::VerFileIterator pkgCache::VerIterator::FileList() const
       {return VerFileIterator(Owner,Owner.VerFileP + Ver->FileList);};

#endif
Commit	Line	Data
578bfd0a AL	1	// -- mode: cpp; mode: fold --
578bfd0a AL	2	// Description /{{{/
c9807169	3	// $Id: cacheiterators.h,v 1.9 1998/11/27 00:07:23 jgg Exp $
578bfd0a AL	4	/* ######################################################################
	5
	6	Cache Iterators - Iterators for navigating the cache structure
	7
	8	The iterators all provides ++,==,!=,->,* and end for their type.
	9	The end function can be used to tell if the list has been fully
	10	traversed.
	11
	12	Unlike STL iterators these contain helper functions to access the data
	13	that is being iterated over. This is because the data structures can't
	14	be formed in a manner that is intuitive to use and also mmapable.
	15
	16	For each variable in the target structure that would need a translation
	17	to be accessed correctly a translating function of the same name is
	18	present in the iterator. If applicable the translating function will
	19	return an iterator.
	20
	21	The DepIterator can iterate over two lists, a list of 'version depends'
	22	or a list of 'package reverse depends'. The type is determined by the
	23	structure passed to the constructor, which should be the structure
6c139d6e AL	24	that has the depends pointer as a member. The provide iterator has the
6c139d6e AL	25	same system.
578bfd0a	26
094a497d	27	This header is not user includable, please use apt-pkg/pkgcache.h
578bfd0a AL	28
	29	##################################################################### */
	30	/}}}/
	31	// Header section: pkglib
	32	#ifndef PKGLIB_CACHEITERATORS_H
	33	#define PKGLIB_CACHEITERATORS_H
	34
6c139d6e	35	#ifdef __GNUG__
094a497d	36	#pragma interface "apt-pkg/cacheiterators.h"
6c139d6e AL	37	#endif
6c139d6e AL	38
578bfd0a AL	39	// Package Iterator
	40	class pkgCache::PkgIterator
	41	{
	42	Package *Pkg;
	43	pkgCache *Owner;
	44	long HashIndex;
	45
	46	public:
	47
	48	enum OkState {NeedsNothing,NeedsUnpack,NeedsConfigure};
	49
	50	// Iteration
	51	void operator ++(int);
	52	inline void operator ++() {operator ++(0);};
	53	inline bool end() const {return Owner == 0 \|\| Pkg == Owner->PkgP?true:false;};
	54
	55	// Comparison
	56	inline bool operator ==(const PkgIterator &B) const {return Pkg == B.Pkg;};
	57	inline bool operator !=(const PkgIterator &B) const {return Pkg != B.Pkg;};
	58
	59	// Accessors
	60	inline Package *operator ->() {return Pkg;};
	61	inline Package const *operator ->() const {return Pkg;};
	62	inline Package const &operator () const {return Pkg;};
	63	inline operator Package *() {return Pkg == Owner->PkgP?0:Pkg;};
	64	inline operator Package const *() const {return Pkg == Owner->PkgP?0:Pkg;};
6c139d6e	65
578bfd0a AL	66	inline const char *Name() const {return Pkg->Name == 0?0:Owner->StrP + Pkg->Name;};
	67	inline const char *Section() const {return Pkg->Section == 0?0:Owner->StrP + Pkg->Section;};
	68	inline const char *TargetDist() const {return Pkg->TargetDist == 0?0:Owner->StrP + Pkg->TargetDist;};
	69	inline VerIterator VersionList() const;
	70	inline VerIterator TargetVer() const;
	71	inline VerIterator CurrentVer() const;
	72	inline DepIterator RevDependsList() const;
	73	inline PrvIterator ProvidesList() const;
f55a958f	74	inline unsigned long Index() const {return Pkg - Owner->PkgP;};
578bfd0a AL	75	OkState State() const;
	76
	77	// Constructors
	78	inline PkgIterator(pkgCache &Owner) : Owner(&Owner), HashIndex(-1)
	79	{
	80	Pkg = Owner.PkgP;
	81	operator ++(0);
	82	};
	83	inline PkgIterator(pkgCache &Owner,Package *Trg) : Pkg(Trg), Owner(&Owner),
	84	HashIndex(0)
	85	{
	86	if (Pkg == 0)
	87	Pkg = Owner.PkgP;
	88	};
	89	inline PkgIterator() : Pkg(0), Owner(0), HashIndex(0) {};
	90	};
	91
	92	// Version Iterator
	93	class pkgCache::VerIterator
	94	{
	95	Version *Ver;
	96	pkgCache &Owner;
	97
	98	void _dummy();
	99
	100	public:
	101
	102	// Iteration
	103	void operator ++(int) {if (Ver != Owner.VerP) Ver = Owner.VerP + Ver->NextVer;};
	104	inline void operator ++() {operator ++(0);};
	105	inline bool end() const {return Ver == Owner.VerP?true:false;};
	106	inline void operator =(const VerIterator &B) {Ver = B.Ver;};
	107
	108	// Comparison
	109	inline bool operator ==(const VerIterator &B) const {return Ver == B.Ver;};
	110	inline bool operator !=(const VerIterator &B) const {return Ver != B.Ver;};
	111	int CompareVer(const VerIterator &B) const;
	112
	113	// Accessors
	114	inline Version *operator ->() {return Ver;};
	115	inline Version const *operator ->() const {return Ver;};
	116	inline Version &operator () {return Ver;};
	117	inline Version const &operator () const {return Ver;};
	118	inline operator Version *() {return Ver == Owner.VerP?0:Ver;};
	119	inline operator Version const *() const {return Ver == Owner.VerP?0:Ver;};
c9807169	120
578bfd0a AL	121	inline const char *VerStr() const {return Ver->VerStr == 0?0:Owner.StrP + Ver->VerStr;};
578bfd0a AL	122	inline const char *Section() const {return Ver->Section == 0?0:Owner.StrP + Ver->Section;};
578bfd0a AL	123	inline PkgIterator ParentPkg() const {return PkgIterator(Owner,Owner.PkgP + Ver->ParentPkg);};
	124	inline DepIterator DependsList() const;
	125	inline PrvIterator ProvidesList() const;
dcb79bae	126	inline VerFileIterator FileList() const;
6c139d6e	127	inline unsigned long Index() const {return Ver - Owner.VerP;};
b518cca6	128	bool Downloadable() const;
c9807169 AL	129	const char *PriorityType();
c9807169 AL	130
f55a958f	131	inline VerIterator(pkgCache &Owner,Version *Trg = 0) : Ver(Trg), Owner(Owner)
578bfd0a AL	132	{
	133	if (Ver == 0)
	134	Ver = Owner.VerP;
	135	};
	136	};
	137
	138	// Dependency iterator
	139	class pkgCache::DepIterator
	140	{
	141	Dependency *Dep;
	142	enum {DepVer, DepRev} Type;
	143	pkgCache *Owner;
	144
	145	void _dummy();
	146
	147	public:
	148
	149	// Iteration
	150	void operator ++(int) {if (Dep != Owner->DepP) Dep = Owner->DepP +
	151	(Type == DepVer?Dep->NextDepends:Dep->NextRevDepends);};
	152	inline void operator ++() {operator ++(0);};
	153	inline bool end() const {return Owner == 0 \|\| Dep == Owner->DepP?true:false;};
	154
	155	// Comparison
	156	inline bool operator ==(const DepIterator &B) const {return Dep == B.Dep;};
	157	inline bool operator !=(const DepIterator &B) const {return Dep != B.Dep;};
	158
	159	// Accessors
	160	inline Dependency *operator ->() {return Dep;};
	161	inline Dependency const *operator ->() const {return Dep;};
	162	inline Dependency &operator () {return Dep;};
	163	inline Dependency const &operator () const {return Dep;};
	164	inline operator Dependency *() {return Dep == Owner->DepP?0:Dep;};
	165	inline operator Dependency const *() const {return Dep == Owner->DepP?0:Dep;};
6c139d6e	166
578bfd0a AL	167	inline const char *TargetVer() const {return Dep->Version == 0?0:Owner->StrP + Dep->Version;};
578bfd0a AL	168	inline PkgIterator TargetPkg() {return PkgIterator(*Owner,Owner->PkgP + Dep->Package);};
578bfd0a AL	169	inline PkgIterator SmartTargetPkg() {PkgIterator R(*Owner);SmartTargetPkg(R);return R;};
	170	inline VerIterator ParentVer() {return VerIterator(*Owner,Owner->VerP + Dep->ParentVer);};
	171	inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[Dep->ParentVer].ParentPkg);};
578bfd0a	172	inline bool Reverse() {return Type == DepRev;};
f55a958f	173	inline unsigned long Index() const {return Dep - Owner->DepP;};
6c139d6e	174	bool IsCritical();
43d017d6	175	void GlobOr(DepIterator &Start,DepIterator &End);
6c139d6e AL	176	Version **AllTargets();
6c139d6e AL	177	bool SmartTargetPkg(PkgIterator &Result);
0a8e3465	178	const char *CompType();
43d017d6	179	const char *DepType();
0a8e3465	180
578bfd0a AL	181	inline DepIterator(pkgCache &Owner,Dependency Trg,Version = 0) :
	182	Dep(Trg), Type(DepVer), Owner(&Owner)
	183	{
	184	if (Dep == 0)
	185	Dep = Owner.DepP;
	186	};
	187	inline DepIterator(pkgCache &Owner,Dependency Trg,Package ) :
	188	Dep(Trg), Type(DepRev), Owner(&Owner)
	189	{
	190	if (Dep == 0)
	191	Dep = Owner.DepP;
	192	};
	193	inline DepIterator() : Dep(0), Type(DepVer), Owner(0) {};
	194	};
	195
	196	// Provides iterator
	197	class pkgCache::PrvIterator
	198	{
	199	Provides *Prv;
	200	enum {PrvVer, PrvPkg} Type;
	201	pkgCache *Owner;
	202
	203	void _dummy();
	204
	205	public:
	206
	207	// Iteration
	208	void operator ++(int) {if (Prv != Owner->ProvideP) Prv = Owner->ProvideP +
	209	(Type == PrvVer?Prv->NextPkgProv:Prv->NextProvides);};
	210	inline void operator ++() {operator ++(0);};
	211	inline bool end() const {return Prv == Owner->ProvideP?true:false;};
	212
	213	// Comparison
	214	inline bool operator ==(const PrvIterator &B) const {return Prv == B.Prv;};
	215	inline bool operator !=(const PrvIterator &B) const {return Prv != B.Prv;};
	216
	217	// Accessors
	218	inline Provides *operator ->() {return Prv;};
	219	inline Provides const *operator ->() const {return Prv;};
	220	inline Provides &operator () {return Prv;};
	221	inline Provides const &operator () const {return Prv;};
	222	inline operator Provides *() {return Prv == Owner->ProvideP?0:Prv;};
	223	inline operator Provides const *() const {return Prv == Owner->ProvideP?0:Prv;};
6c139d6e	224
578bfd0a AL	225	inline const char *Name() const {return Owner->StrP + Owner->PkgP[Prv->ParentPkg].Name;};
	226	inline const char *ProvideVersion() const {return Prv->ProvideVersion == 0?0:Owner->StrP + Prv->ProvideVersion;};
	227	inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Prv->ParentPkg);};
	228	inline VerIterator OwnerVer() {return VerIterator(*Owner,Owner->VerP + Prv->Version);};
	229	inline PkgIterator OwnerPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[Prv->Version].ParentPkg);};
f55a958f	230	inline unsigned long Index() const {return Prv - Owner->ProvideP;};
578bfd0a AL	231
	232	inline PrvIterator(pkgCache &Owner,Provides Trg,Version ) :
	233	Prv(Trg), Type(PrvVer), Owner(&Owner)
	234	{
	235	if (Prv == 0)
	236	Prv = Owner.ProvideP;
	237	};
	238	inline PrvIterator(pkgCache &Owner,Provides Trg,Package ) :
	239	Prv(Trg), Type(PrvPkg), Owner(&Owner)
	240	{
	241	if (Prv == 0)
	242	Prv = Owner.ProvideP;
	243	};
	244	};
	245
	246	// Package file
	247	class pkgCache::PkgFileIterator
	248	{
	249	pkgCache *Owner;
	250	PackageFile *File;
	251
	252	public:
	253
	254	// Iteration
	255	void operator ++(int) {if (File!= Owner->PkgFileP) File = Owner->PkgFileP + File->NextFile;};
	256	inline void operator ++() {operator ++(0);};
	257	inline bool end() const {return File == Owner->PkgFileP?true:false;};
	258
	259	// Comparison
	260	inline bool operator ==(const PkgFileIterator &B) const {return File == B.File;};
	261	inline bool operator !=(const PkgFileIterator &B) const {return File != B.File;};
	262
	263	// Accessors
	264	inline PackageFile *operator ->() {return File;};
	265	inline PackageFile const *operator ->() const {return File;};
	266	inline PackageFile const &operator () const {return File;};
	267	inline operator PackageFile *() {return File == Owner->PkgFileP?0:File;};
	268	inline operator PackageFile const *() const {return File == Owner->PkgFileP?0:File;};
	269
	270	inline const char *FileName() const {return File->FileName == 0?0:Owner->StrP + File->FileName;};
	271	inline const char *Version() const {return File->Version == 0?0:Owner->StrP + File->Version;};
	272	inline const char *Distribution() const {return File->Distribution == 0?0:Owner->StrP + File->Distribution;};
f55a958f	273	inline unsigned long Index() const {return File - Owner->PkgFileP;};
578bfd0a AL	274
	275	bool IsOk();
	276
	277	// Constructors
	278	inline PkgFileIterator(pkgCache &Owner) : Owner(&Owner), File(Owner.PkgFileP + Owner.Head().FileList) {};
	279	inline PkgFileIterator(pkgCache &Owner,PackageFile *Trg) : Owner(&Owner), File(Trg) {};
	280	};
	281
dcb79bae AL	282	// Version File
	283	class pkgCache::VerFileIterator
	284	{
	285	pkgCache *Owner;
	286	VerFile *FileP;
	287
	288	public:
	289
	290	// Iteration
	291	void operator ++(int) {if (FileP != Owner->VerFileP) FileP = Owner->VerFileP + FileP->NextFile;};
	292	inline void operator ++() {operator ++(0);};
	293	inline bool end() const {return FileP == Owner->VerFileP?true:false;};
	294
	295	// Comparison
	296	inline bool operator ==(const VerFileIterator &B) const {return FileP == B.FileP;};
	297	inline bool operator !=(const VerFileIterator &B) const {return FileP != B.FileP;};
	298
	299	// Accessors
	300	inline VerFile *operator ->() {return FileP;};
	301	inline VerFile const *operator ->() const {return FileP;};
	302	inline VerFile const &operator () const {return FileP;};
	303	inline operator VerFile *() {return FileP == Owner->VerFileP?0:FileP;};
	304	inline operator VerFile const *() const {return FileP == Owner->VerFileP?0:FileP;};
	305
	306	inline PkgFileIterator File() const {return PkgFileIterator(*Owner,FileP->File + Owner->PkgFileP);};
	307	inline unsigned long Index() const {return FileP - Owner->VerFileP;};
b518cca6	308
dcb79bae AL	309	inline VerFileIterator(pkgCache &Owner,VerFile *Trg) : Owner(&Owner), FileP(Trg) {};
	310	};
	311
578bfd0a AL	312	// Inlined Begin functions cant be in the class because of order problems
	313	inline pkgCache::VerIterator pkgCache::PkgIterator::VersionList() const
	314	{return VerIterator(*Owner,Owner->VerP + Pkg->VersionList);};
	315	inline pkgCache::VerIterator pkgCache::PkgIterator::CurrentVer() const
	316	{return VerIterator(*Owner,Owner->VerP + Pkg->CurrentVer);};
	317	inline pkgCache::VerIterator pkgCache::PkgIterator::TargetVer() const
	318	{return VerIterator(*Owner,Owner->VerP + Pkg->TargetVer);};
	319	inline pkgCache::DepIterator pkgCache::PkgIterator::RevDependsList() const
	320	{return DepIterator(*Owner,Owner->DepP + Pkg->RevDepends,Pkg);};
	321	inline pkgCache::PrvIterator pkgCache::PkgIterator::ProvidesList() const
	322	{return PrvIterator(*Owner,Owner->ProvideP + Pkg->ProvidesList,Pkg);};
	323	inline pkgCache::PrvIterator pkgCache::VerIterator::ProvidesList() const
	324	{return PrvIterator(Owner,Owner.ProvideP + Ver->ProvidesList,Ver);};
	325	inline pkgCache::DepIterator pkgCache::VerIterator::DependsList() const
	326	{return DepIterator(Owner,Owner.DepP + Ver->DependsList,Ver);};
dcb79bae AL	327	inline pkgCache::VerFileIterator pkgCache::VerIterator::FileList() const
dcb79bae AL	328	{return VerFileIterator(Owner,Owner.VerFileP + Ver->FileList);};
578bfd0a AL	329
578bfd0a AL	330	#endif