make all d-pointer * const pointers

Doing this disables the implicit copy assignment operator (among others)
which would cause hovac if used on the classes as it would just copy the
pointer, not the data the d-pointer points to. For most of the classes
we don't need a copy assignment operator anyway and in many classes it
was broken before as many contain a pointer of some sort.

Only for our Cacheset Container interfaces we define an explicit copy
assignment operator which could later be implemented to copy the data
from one d-pointer to the other if we need it.

Git-Dch: Ignore

1 files changed, 4 insertions, 4 deletions

diff --git a/apt-pkg/tagfile.h b/apt-pkg/tagfile.h
index 24eda02f7..23238d979 100644
--- a/apt-pkg/tagfile.h
+++ b/apt-pkg/tagfile.h
@@ -46,7 +46,7 @@ class pkgTagSection
    APT_DEPRECATED unsigned int TagCount;
 #endif
 
-   pkgTagSectionPrivate *d;
+   pkgTagSectionPrivate * const d;
 
    protected:
    const char *Stop;
@@ -145,7 +145,7 @@ class pkgTagSection
 class pkgTagFilePrivate;
 class pkgTagFile
 {
-   pkgTagFilePrivate *d;
+   pkgTagFilePrivate * const d;
 
    APT_HIDDEN bool Fill();
    APT_HIDDEN bool Resize();
@@ -157,9 +157,9 @@ class pkgTagFile
    unsigned long Offset();
    bool Jump(pkgTagSection &Tag,unsigned long long Offset);
 
-   void Init(FileFd *F,unsigned long long Size = 32*1024);
+   void Init(FileFd * const F,unsigned long long const Size = 32*1024);
 
-   pkgTagFile(FileFd *F,unsigned long long Size = 32*1024);
+   pkgTagFile(FileFd * const F,unsigned long long Size = 32*1024);
    virtual ~pkgTagFile();
 };