* apt-pkg/init.cc:

[apt.git] / apt-pkg / pkgcache.cc

diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc
index 862d053483efa6ed32f6e71cfd9227efaa1d9d11..6db025bd06fc312ab58739d288c5edeadc9e86f2 100644 (file)
--- a/apt-pkg/pkgcache.cc
+++ b/apt-pkg/pkgcache.cc
@@ -175,7 +175,7 @@ bool pkgCache::ReMap(bool const &Errorchecks)
 unsigned long pkgCache::sHash(const string &Str) const
 {
    unsigned long Hash = 0;
-   for (string::const_iterator I = Str.begin(); I != Str.end(); I++)
+   for (string::const_iterator I = Str.begin(); I != Str.end(); ++I)
       Hash = 5*Hash + tolower_ascii(*I);
    return Hash % _count(HeaderP->PkgHashTable);
 }
@@ -183,7 +183,7 @@ unsigned long pkgCache::sHash(const string &Str) const
 unsigned long pkgCache::sHash(const char *Str) const
 {
    unsigned long Hash = 0;
-   for (const char *I = Str; *I != 0; I++)
+   for (const char *I = Str; *I != 0; ++I)
       Hash = 5*Hash + tolower_ascii(*I);
    return Hash % _count(HeaderP->PkgHashTable);
 }
@@ -521,15 +521,24 @@ std::string pkgCache::PkgIterator::FullName(bool const &Pretty) const
    conflicts (including dpkg's Breaks fields). */
 bool pkgCache::DepIterator::IsCritical() const
 {
-   if (S->Type == pkgCache::Dep::Conflicts ||
-       S->Type == pkgCache::Dep::DpkgBreaks ||
-       S->Type == pkgCache::Dep::Obsoletes ||
+   if (IsNegative() == true ||
        S->Type == pkgCache::Dep::Depends ||
        S->Type == pkgCache::Dep::PreDepends)
       return true;
    return false;
 }
                                                                        /*}}}*/
+// DepIterator::IsNegative - Returns true if the dep is a negative one /*{{{*/
+// ---------------------------------------------------------------------
+/* Some dependencies are positive like Depends and Recommends, others
+   are negative like Conflicts which can and should be handled differently */
+bool pkgCache::DepIterator::IsNegative() const
+{
+   return S->Type == Dep::DpkgBreaks ||
+         S->Type == Dep::Conflicts ||
+         S->Type == Dep::Obsoletes;
+}
+                                                                       /*}}}*/
 // DepIterator::SmartTargetPkg - Resolve dep target pointers w/provides        /*{{{*/
 // ---------------------------------------------------------------------
 /* This intellegently looks at dep target packages and tries to figure
@@ -560,7 +569,7 @@ bool pkgCache::DepIterator::SmartTargetPkg(PkgIterator &Result) const
       virtual package libc-dev which is provided by libc5-dev and libc6-dev
       we must ignore libc5-dev when considering the provides list. */ 
    PrvIterator PStart = Result.ProvidesList();
-   for (; PStart.end() != true && PStart.OwnerPkg() == ParentPkg(); PStart++);
+   for (; PStart.end() != true && PStart.OwnerPkg() == ParentPkg(); ++PStart);
 
    // Nothing but indirect self provides
    if (PStart.end() == true)
@@ -568,7 +577,7 @@ bool pkgCache::DepIterator::SmartTargetPkg(PkgIterator &Result) const
    
    // Check for single packages in the provides list
    PrvIterator P = PStart;
-   for (; P.end() != true; P++)
+   for (; P.end() != true; ++P)
    {
       // Skip over self provides
       if (P.OwnerPkg() == ParentPkg())
@@ -602,14 +611,12 @@ pkgCache::Version **pkgCache::DepIterator::AllTargets() const
       PkgIterator DPkg = TargetPkg();
 
       // Walk along the actual package providing versions
-      for (VerIterator I = DPkg.VersionList(); I.end() == false; I++)
+      for (VerIterator I = DPkg.VersionList(); I.end() == false; ++I)
       {
         if (Owner->VS->CheckDep(I.VerStr(),S->CompareOp,TargetVer()) == false)
            continue;
 
-        if ((S->Type == pkgCache::Dep::Conflicts ||
-             S->Type == pkgCache::Dep::DpkgBreaks ||
-             S->Type == pkgCache::Dep::Obsoletes) &&
+        if (IsNegative() == true &&
             ParentPkg() == I.ParentPkg())
            continue;
         
@@ -619,15 +626,13 @@ pkgCache::Version **pkgCache::DepIterator::AllTargets() const
       }
       
       // Follow all provides
-      for (PrvIterator I = DPkg.ProvidesList(); I.end() == false; I++)
+      for (PrvIterator I = DPkg.ProvidesList(); I.end() == false; ++I)
       {
         if (Owner->VS->CheckDep(I.ProvideVersion(),S->CompareOp,TargetVer()) == false)
            continue;
         
-        if ((S->Type == pkgCache::Dep::Conflicts ||
-             S->Type == pkgCache::Dep::DpkgBreaks ||
-             S->Type == pkgCache::Dep::Obsoletes) &&
-            ParentPkg() == I.OwnerPkg())
+        if (IsNegative() == true &&
+            ParentPkg()->Group == I.OwnerPkg()->Group)
            continue;
         
         Size++;
@@ -712,7 +717,7 @@ int pkgCache::VerIterator::CompareVer(const VerIterator &B) const
    /* Start at A and look for B. If B is found then A > B otherwise
       B was before A so A < B */
    VerIterator I = *this;
-   for (;I.end() == false; I++)
+   for (;I.end() == false; ++I)
       if (I == B)
         return 1;
    return -1;
@@ -724,7 +729,7 @@ int pkgCache::VerIterator::CompareVer(const VerIterator &B) const
 bool pkgCache::VerIterator::Downloadable() const
 {
    VerFileIterator Files = FileList();
-   for (; Files.end() == false; Files++)
+   for (; Files.end() == false; ++Files)
       if ((Files.File()->Flags & pkgCache::Flag::NotSource) != pkgCache::Flag::NotSource)
         return true;
    return false;
@@ -737,7 +742,7 @@ bool pkgCache::VerIterator::Downloadable() const
 bool pkgCache::VerIterator::Automatic() const
 {
    VerFileIterator Files = FileList();
-   for (; Files.end() == false; Files++)
+   for (; Files.end() == false; ++Files)
       // Do not check ButAutomaticUpgrades here as it is kind of automatic…
       if ((Files.File()->Flags & pkgCache::Flag::NotAutomatic) != pkgCache::Flag::NotAutomatic)
         return true;
@@ -755,7 +760,7 @@ pkgCache::VerFileIterator pkgCache::VerIterator::NewestFile() const
 {
    VerFileIterator Files = FileList();
    VerFileIterator Highest = Files;
-   for (; Files.end() == false; Files++)
+   for (; Files.end() == false; ++Files)
    {
       if (Owner->VS->CmpReleaseVer(Files.File().Version(),Highest.File().Version()) > 0)
         Highest = Files;
@@ -772,7 +777,7 @@ string pkgCache::VerIterator::RelStr() const
 {
    bool First = true;
    string Res;
-   for (pkgCache::VerFileIterator I = this->FileList(); I.end() == false; I++)
+   for (pkgCache::VerFileIterator I = this->FileList(); I.end() == false; ++I)
    {
       // Do not print 'not source' entries'
       pkgCache::PkgFileIterator File = I.File();
@@ -781,7 +786,7 @@ string pkgCache::VerIterator::RelStr() const
 
       // See if we have already printed this out..
       bool Seen = false;
-      for (pkgCache::VerFileIterator J = this->FileList(); I != J; J++)
+      for (pkgCache::VerFileIterator J = this->FileList(); I != J; ++J)
       {
         pkgCache::PkgFileIterator File2 = J.File();
         if (File2->Label == 0 || File->Label == 0)
@@ -882,7 +887,7 @@ pkgCache::DescIterator pkgCache::VerIterator::TranslatedDescription() const
 {
    std::vector<string> const lang = APT::Configuration::getLanguages();
    for (std::vector<string>::const_iterator l = lang.begin();
-       l != lang.end(); l++)
+       l != lang.end(); ++l)
    {
       pkgCache::DescIterator Desc = DescriptionList();
       for (; Desc.end() == false; ++Desc)