C++11: Switch from auto_ptr to unique_ptr

This is nicer

apt-pkg/depcache.cc

@@ -2010,7 +2010,7 @@ bool pkgDepCache::MarkAndSweep(InRootSetFunc &rootFunc)
 }
 bool pkgDepCache::MarkAndSweep()
 {
-   std::auto_ptr<InRootSetFunc> f(GetRootSetFunc());
+   std::unique_ptr<InRootSetFunc> f(GetRootSetFunc());
    if(f.get() != NULL)
       return MarkAndSweep(*f.get());
    else

ftparchive/writer.cc

@@ -420,7 +420,7 @@ bool PackagesWriter::DoPackage(string FileName)
       Architecture = Arch;
    else
       Architecture = Tags.FindS("Architecture");
-   auto_ptr<Override::Item> OverItem(Over.GetItem(Package,Architecture));
+   unique_ptr<Override::Item> OverItem(Over.GetItem(Package,Architecture));
    
    if (Package.empty() == true)
       return _error->Error(_("Archive had no package field"));
@@ -434,7 +434,7 @@ bool PackagesWriter::DoPackage(string FileName)
 	 ioprintf(c1out, _("  %s has no override entry\n"), Package.c_str());
       }
       
-      OverItem = auto_ptr<Override::Item>(new Override::Item);
+      OverItem = unique_ptr<Override::Item>(new Override::Item);
       OverItem->FieldOverride["Section"] = Tags.FindS("Section");
       OverItem->Priority = Tags.FindS("Priority");
    }
@@ -660,7 +660,7 @@ bool SourcesWriter::DoPackage(string FileName)
    string BestPrio;
    string Bins = Tags.FindS("Binary");
    char Buffer[Bins.length() + 1];
-   auto_ptr<Override::Item> OverItem(0);
+   unique_ptr<Override::Item> OverItem(nullptr);
    if (Bins.empty() == false)
    {
       strcpy(Buffer,Bins.c_str());
@@ -673,7 +673,7 @@ bool SourcesWriter::DoPackage(string FileName)
       unsigned char BestPrioV = pkgCache::State::Extra;
       for (unsigned I = 0; BinList[I] != 0; I++)
       {
-	 auto_ptr<Override::Item> Itm(BOver.GetItem(BinList[I]));
+	 unique_ptr<Override::Item> Itm(BOver.GetItem(BinList[I]));
 	 if (Itm.get() == 0)
 	    continue;
 
@@ -685,7 +685,7 @@ bool SourcesWriter::DoPackage(string FileName)
 	 }	 
 
 	 if (OverItem.get() == 0)
-	    OverItem = Itm;
+	    OverItem = std::move(Itm);
       }
    }
    
@@ -698,23 +698,23 @@ bool SourcesWriter::DoPackage(string FileName)
 	 ioprintf(c1out, _("  %s has no override entry\n"), Tags.FindS("Source").c_str());
       }
       
-      OverItem = auto_ptr<Override::Item>(new Override::Item);
+      OverItem.reset(new Override::Item);
    }
    
    struct stat St;
    if (stat(FileName.c_str(), &St) != 0)
       return _error->Errno("fstat","Failed to stat %s",FileName.c_str());
 
-   auto_ptr<Override::Item> SOverItem(SOver.GetItem(Tags.FindS("Source")));
-   // const auto_ptr<Override::Item> autoSOverItem(SOverItem);
+   unique_ptr<Override::Item> SOverItem(SOver.GetItem(Tags.FindS("Source")));
+   // const unique_ptr<Override::Item> autoSOverItem(SOverItem);
    if (SOverItem.get() == 0)
    {
       ioprintf(c1out, _("  %s has no source override entry\n"), Tags.FindS("Source").c_str());
-      SOverItem = auto_ptr<Override::Item>(BOver.GetItem(Tags.FindS("Source")));
+      SOverItem = unique_ptr<Override::Item>(BOver.GetItem(Tags.FindS("Source")));
       if (SOverItem.get() == 0)
       {
         ioprintf(c1out, _("  %s has no binary override entry either\n"), Tags.FindS("Source").c_str());
-	 SOverItem = auto_ptr<Override::Item>(new Override::Item);
+	 SOverItem = unique_ptr<Override::Item>(new Override::Item);
 	 *SOverItem = *OverItem;
       }
    }