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

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: cacheiterators.h,v 1.7 1998/10/02 04:39:44 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;

   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();
   Version **AllTargets();   
   bool SmartTargetPkg(PkgIterator &Result);
   const char *CompType();
   
   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 /{{{/
0a8e3465	3	// $Id: cacheiterators.h,v 1.7 1998/10/02 04:39:44 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;};
6c139d6e	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;
578bfd0a	129
f55a958f	130	inline VerIterator(pkgCache &Owner,Version *Trg = 0) : Ver(Trg), Owner(Owner)
578bfd0a AL	131	{
	132	if (Ver == 0)
	133	Ver = Owner.VerP;
	134	};
	135	};
	136
	137	// Dependency iterator
	138	class pkgCache::DepIterator
	139	{
	140	Dependency *Dep;
	141	enum {DepVer, DepRev} Type;
	142	pkgCache *Owner;
	143
	144	void _dummy();
	145
	146	public:
	147
	148	// Iteration
	149	void operator ++(int) {if (Dep != Owner->DepP) Dep = Owner->DepP +
	150	(Type == DepVer?Dep->NextDepends:Dep->NextRevDepends);};
	151	inline void operator ++() {operator ++(0);};
	152	inline bool end() const {return Owner == 0 \|\| Dep == Owner->DepP?true:false;};
	153
	154	// Comparison
	155	inline bool operator ==(const DepIterator &B) const {return Dep == B.Dep;};
	156	inline bool operator !=(const DepIterator &B) const {return Dep != B.Dep;};
	157
	158	// Accessors
	159	inline Dependency *operator ->() {return Dep;};
	160	inline Dependency const *operator ->() const {return Dep;};
	161	inline Dependency &operator () {return Dep;};
	162	inline Dependency const &operator () const {return Dep;};
	163	inline operator Dependency *() {return Dep == Owner->DepP?0:Dep;};
	164	inline operator Dependency const *() const {return Dep == Owner->DepP?0:Dep;};
6c139d6e	165
578bfd0a AL	166	inline const char *TargetVer() const {return Dep->Version == 0?0:Owner->StrP + Dep->Version;};
578bfd0a AL	167	inline PkgIterator TargetPkg() {return PkgIterator(*Owner,Owner->PkgP + Dep->Package);};
578bfd0a AL	168	inline PkgIterator SmartTargetPkg() {PkgIterator R(*Owner);SmartTargetPkg(R);return R;};
	169	inline VerIterator ParentVer() {return VerIterator(*Owner,Owner->VerP + Dep->ParentVer);};
	170	inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[Dep->ParentVer].ParentPkg);};
578bfd0a	171	inline bool Reverse() {return Type == DepRev;};
f55a958f	172	inline unsigned long Index() const {return Dep - Owner->DepP;};
6c139d6e AL	173	bool IsCritical();
	174	Version **AllTargets();
	175	bool SmartTargetPkg(PkgIterator &Result);
0a8e3465 AL	176	const char *CompType();
0a8e3465 AL	177
578bfd0a AL	178	inline DepIterator(pkgCache &Owner,Dependency Trg,Version = 0) :
	179	Dep(Trg), Type(DepVer), Owner(&Owner)
	180	{
	181	if (Dep == 0)
	182	Dep = Owner.DepP;
	183	};
	184	inline DepIterator(pkgCache &Owner,Dependency Trg,Package ) :
	185	Dep(Trg), Type(DepRev), Owner(&Owner)
	186	{
	187	if (Dep == 0)
	188	Dep = Owner.DepP;
	189	};
	190	inline DepIterator() : Dep(0), Type(DepVer), Owner(0) {};
	191	};
	192
	193	// Provides iterator
	194	class pkgCache::PrvIterator
	195	{
	196	Provides *Prv;
	197	enum {PrvVer, PrvPkg} Type;
	198	pkgCache *Owner;
	199
	200	void _dummy();
	201
	202	public:
	203
	204	// Iteration
	205	void operator ++(int) {if (Prv != Owner->ProvideP) Prv = Owner->ProvideP +
	206	(Type == PrvVer?Prv->NextPkgProv:Prv->NextProvides);};
	207	inline void operator ++() {operator ++(0);};
	208	inline bool end() const {return Prv == Owner->ProvideP?true:false;};
	209
	210	// Comparison
	211	inline bool operator ==(const PrvIterator &B) const {return Prv == B.Prv;};
	212	inline bool operator !=(const PrvIterator &B) const {return Prv != B.Prv;};
	213
	214	// Accessors
	215	inline Provides *operator ->() {return Prv;};
	216	inline Provides const *operator ->() const {return Prv;};
	217	inline Provides &operator () {return Prv;};
	218	inline Provides const &operator () const {return Prv;};
	219	inline operator Provides *() {return Prv == Owner->ProvideP?0:Prv;};
	220	inline operator Provides const *() const {return Prv == Owner->ProvideP?0:Prv;};
6c139d6e	221
578bfd0a AL	222	inline const char *Name() const {return Owner->StrP + Owner->PkgP[Prv->ParentPkg].Name;};
	223	inline const char *ProvideVersion() const {return Prv->ProvideVersion == 0?0:Owner->StrP + Prv->ProvideVersion;};
	224	inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Prv->ParentPkg);};
	225	inline VerIterator OwnerVer() {return VerIterator(*Owner,Owner->VerP + Prv->Version);};
	226	inline PkgIterator OwnerPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[Prv->Version].ParentPkg);};
f55a958f	227	inline unsigned long Index() const {return Prv - Owner->ProvideP;};
578bfd0a AL	228
	229	inline PrvIterator(pkgCache &Owner,Provides Trg,Version ) :
	230	Prv(Trg), Type(PrvVer), Owner(&Owner)
	231	{
	232	if (Prv == 0)
	233	Prv = Owner.ProvideP;
	234	};
	235	inline PrvIterator(pkgCache &Owner,Provides Trg,Package ) :
	236	Prv(Trg), Type(PrvPkg), Owner(&Owner)
	237	{
	238	if (Prv == 0)
	239	Prv = Owner.ProvideP;
	240	};
	241	};
	242
	243	// Package file
	244	class pkgCache::PkgFileIterator
	245	{
	246	pkgCache *Owner;
	247	PackageFile *File;
	248
	249	public:
	250
	251	// Iteration
	252	void operator ++(int) {if (File!= Owner->PkgFileP) File = Owner->PkgFileP + File->NextFile;};
	253	inline void operator ++() {operator ++(0);};
	254	inline bool end() const {return File == Owner->PkgFileP?true:false;};
	255
	256	// Comparison
	257	inline bool operator ==(const PkgFileIterator &B) const {return File == B.File;};
	258	inline bool operator !=(const PkgFileIterator &B) const {return File != B.File;};
	259
	260	// Accessors
	261	inline PackageFile *operator ->() {return File;};
	262	inline PackageFile const *operator ->() const {return File;};
	263	inline PackageFile const &operator () const {return File;};
	264	inline operator PackageFile *() {return File == Owner->PkgFileP?0:File;};
	265	inline operator PackageFile const *() const {return File == Owner->PkgFileP?0:File;};
	266
	267	inline const char *FileName() const {return File->FileName == 0?0:Owner->StrP + File->FileName;};
	268	inline const char *Version() const {return File->Version == 0?0:Owner->StrP + File->Version;};
	269	inline const char *Distribution() const {return File->Distribution == 0?0:Owner->StrP + File->Distribution;};
f55a958f	270	inline unsigned long Index() const {return File - Owner->PkgFileP;};
578bfd0a AL	271
	272	bool IsOk();
	273
	274	// Constructors
	275	inline PkgFileIterator(pkgCache &Owner) : Owner(&Owner), File(Owner.PkgFileP + Owner.Head().FileList) {};
	276	inline PkgFileIterator(pkgCache &Owner,PackageFile *Trg) : Owner(&Owner), File(Trg) {};
	277	};
	278
dcb79bae AL	279	// Version File
	280	class pkgCache::VerFileIterator
	281	{
	282	pkgCache *Owner;
	283	VerFile *FileP;
	284
	285	public:
	286
	287	// Iteration
	288	void operator ++(int) {if (FileP != Owner->VerFileP) FileP = Owner->VerFileP + FileP->NextFile;};
	289	inline void operator ++() {operator ++(0);};
	290	inline bool end() const {return FileP == Owner->VerFileP?true:false;};
	291
	292	// Comparison
	293	inline bool operator ==(const VerFileIterator &B) const {return FileP == B.FileP;};
	294	inline bool operator !=(const VerFileIterator &B) const {return FileP != B.FileP;};
	295
	296	// Accessors
	297	inline VerFile *operator ->() {return FileP;};
	298	inline VerFile const *operator ->() const {return FileP;};
	299	inline VerFile const &operator () const {return FileP;};
	300	inline operator VerFile *() {return FileP == Owner->VerFileP?0:FileP;};
	301	inline operator VerFile const *() const {return FileP == Owner->VerFileP?0:FileP;};
	302
	303	inline PkgFileIterator File() const {return PkgFileIterator(*Owner,FileP->File + Owner->PkgFileP);};
	304	inline unsigned long Index() const {return FileP - Owner->VerFileP;};
b518cca6	305
dcb79bae AL	306	inline VerFileIterator(pkgCache &Owner,VerFile *Trg) : Owner(&Owner), FileP(Trg) {};
	307	};
	308
578bfd0a AL	309	// Inlined Begin functions cant be in the class because of order problems
	310	inline pkgCache::VerIterator pkgCache::PkgIterator::VersionList() const
	311	{return VerIterator(*Owner,Owner->VerP + Pkg->VersionList);};
	312	inline pkgCache::VerIterator pkgCache::PkgIterator::CurrentVer() const
	313	{return VerIterator(*Owner,Owner->VerP + Pkg->CurrentVer);};
	314	inline pkgCache::VerIterator pkgCache::PkgIterator::TargetVer() const
	315	{return VerIterator(*Owner,Owner->VerP + Pkg->TargetVer);};
	316	inline pkgCache::DepIterator pkgCache::PkgIterator::RevDependsList() const
	317	{return DepIterator(*Owner,Owner->DepP + Pkg->RevDepends,Pkg);};
	318	inline pkgCache::PrvIterator pkgCache::PkgIterator::ProvidesList() const
	319	{return PrvIterator(*Owner,Owner->ProvideP + Pkg->ProvidesList,Pkg);};
	320	inline pkgCache::PrvIterator pkgCache::VerIterator::ProvidesList() const
	321	{return PrvIterator(Owner,Owner.ProvideP + Ver->ProvidesList,Ver);};
	322	inline pkgCache::DepIterator pkgCache::VerIterator::DependsList() const
	323	{return DepIterator(Owner,Owner.DepP + Ver->DependsList,Ver);};
dcb79bae AL	324	inline pkgCache::VerFileIterator pkgCache::VerIterator::FileList() const
dcb79bae AL	325	{return VerFileIterator(Owner,Owner.VerFileP + Ver->FileList);};
578bfd0a AL	326
578bfd0a AL	327	#endif