apt-pkg/contrib/sptr.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: sptr.h,v 1.3 2001/03/11 07:22:19 jgg Exp $
   4 /* ######################################################################
   5
   6    Trivial non-ref counted 'smart pointer'
   7
   8    This is really only good to eliminate
   9      {
  10        delete Foo;
  11        return;
  12      }
  13
  14    Blocks from functions.
  15
  16    I think G++ has become good enough that doing this won't have much
  17    code size implications.
  18
  19    ##################################################################### */
  20                                                                         /*}}}*/
  21 #ifndef SMART_POINTER_H
  22 #define SMART_POINTER_H
  23
  24 template <class T>
  25 class APT_DEPRECATED SPtr
  26 {
  27    public:
  28    T *Ptr;
  29
  30    inline T *operator ->() {return Ptr;};
  31    inline T &operator *() {return *Ptr;};
  32    inline operator T *() {return Ptr;};
  33    inline operator void *() {return Ptr;};
  34    inline T *UnGuard() {T *Tmp = Ptr; Ptr = 0; return Tmp;};
  35    inline void operator =(T *N) {Ptr = N;};
  36    inline bool operator ==(T *lhs) const {return Ptr == lhs;};
  37    inline bool operator !=(T *lhs) const {return Ptr != lhs;};
  38    inline T*Get() {return Ptr;};
  39
  40    inline SPtr(T *Ptr) : Ptr(Ptr) {};
  41    inline SPtr() : Ptr(0) {};
  42    inline ~SPtr() {delete Ptr;};
  43 };
  44
  45 template <class T>
  46 class SPtrArray
  47 {
  48    public:
  49    T *Ptr;
  50
  51    //inline T &operator *() {return *Ptr;};
  52    inline operator T *() {return Ptr;};
  53    inline operator void *() {return Ptr;};
  54    inline T *UnGuard() {T *Tmp = Ptr; Ptr = 0; return Tmp;};
  55    //inline T &operator [](signed long I) {return Ptr[I];};
  56    inline void operator =(T *N) {Ptr = N;};
  57    inline bool operator ==(T *lhs) const {return Ptr == lhs;};
  58    inline bool operator !=(T *lhs) const {return Ptr != lhs;};
  59    inline T *Get() {return Ptr;};
  60
  61    inline SPtrArray(T *Ptr) : Ptr(Ptr) {};
  62    inline SPtrArray() : Ptr(0) {};
  63 #if __GNUC__ >= 4
  64         #pragma GCC diagnostic push
  65         #pragma GCC diagnostic ignored "-Wunsafe-loop-optimizations"
  66         // gcc warns about this, but we can do nothing here…
  67 #endif
  68    inline ~SPtrArray() {delete [] Ptr;};
  69 #if __GNUC__ >= 4
  70         #pragma GCC diagnostic pop
  71 #endif
  72 };
  73
  74 #endif