X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/af87ab54430b31a0e1840b2c1673c07d74813447..f8477782df203e1998a8704e71a1a3cc699e9e3a:/apt-pkg/cacheiterators.h

diff --git a/apt-pkg/cacheiterators.h b/apt-pkg/cacheiterators.h
index cb8e0cd94..2b326bd65 100644
--- a/apt-pkg/cacheiterators.h
+++ b/apt-pkg/cacheiterators.h
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: cacheiterators.h,v 1.17 2001/04/29 05:13:51 jgg Exp $
+// $Id: cacheiterators.h,v 1.18.2.1 2004/05/08 22:44:27 mdz Exp $
 /* ######################################################################
    
    Cache Iterators - Iterators for navigating the cache structure
@@ -78,7 +78,6 @@ class pkgCache::PkgIterator
    inline bool Purge() const {return Pkg->CurrentState == pkgCache::State::Purge ||
 	 (Pkg->CurrentVer == 0 && Pkg->CurrentState == pkgCache::State::NotInstalled);};
    inline VerIterator VersionList() const;
-   inline VerIterator TargetVer() const;
    inline VerIterator CurrentVer() const;
    inline DepIterator RevDependsList() const;
    inline PrvIterator ProvidesList() const;
@@ -108,7 +107,7 @@ class pkgCache::VerIterator
    // 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 bool end() const {return Owner == NULL || (Ver == Owner->VerP?true:false);};
    inline void operator =(const VerIterator &B) {Ver = B.Ver; Owner = B.Owner;};
    
    // Comparison
@@ -223,7 +222,7 @@ class pkgCache::PrvIterator
    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;};
+   inline bool end() const {return Owner == 0 || Prv == Owner->ProvideP?true:false;};
    
    // Comparison
    inline bool operator ==(const PrvIterator &B) const {return Prv == B.Prv;};
@@ -245,6 +244,8 @@ class pkgCache::PrvIterator
    inline PkgIterator OwnerPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[Prv->Version].ParentPkg);};
    inline unsigned long Index() const {return Prv - Owner->ProvideP;};
 
+   inline PrvIterator() : Prv(0), Type(PrvVer), Owner(0)  {};
+
    inline PrvIterator(pkgCache &Owner,Provides *Trg,Version *) :
           Prv(Trg), Type(PrvVer), Owner(&Owner) 
    {
@@ -289,7 +290,7 @@ class pkgCache::PkgFileIterator
    inline const char *Component() const {return File->Component == 0?0:Owner->StrP + File->Component;};
    inline const char *Version() const {return File->Version == 0?0:Owner->StrP + File->Version;};
    inline const char *Origin() const {return File->Origin == 0?0:Owner->StrP + File->Origin;};
-   inline const char *Label() const {return File->Origin == 0?0:Owner->StrP + File->Label;};
+   inline const char *Label() const {return File->Label == 0?0:Owner->StrP + File->Label;};
    inline const char *Site() const {return File->Site == 0?0:Owner->StrP + File->Site;};
    inline const char *Architecture() const {return File->Architecture == 0?0:Owner->StrP + File->Architecture;};
    inline const char *IndexType() const {return File->IndexType == 0?0:Owner->StrP + File->IndexType;};