54 class ValueObj {
  55  public:
  56   void* operator new(size_t size) throw();
  57   void operator delete(void* p);
  58 };
  59 
  60 // Base class for classes that constitute name spaces.
  61 
  62 class AllStatic {
  63  public:
  64   void* operator new(size_t size) throw();
  65   void operator delete(void* p);
  66 };
  67 
  68 
  69 //------------------------------Chunk------------------------------------------
  70 // Linked list of raw memory chunks
  71 class Chunk: public CHeapObj {
  72  public:
  73   void* operator new(size_t size, size_t length) throw();



  74   void  operator delete(void* p, size_t length);
  75   Chunk(size_t length);
  76 
  77   enum {
  78       init_size =  1*1024,      // Size of first chunk
  79       size      = 32*1024       // Default size of an Arena chunk (following the first)
  80   };
  81   Chunk*       _next;           // Next Chunk in list
  82   size_t       _len;            // Size of this Chunk
  83 
  84   void chop();                  // Chop this chunk
  85   void next_chop();             // Chop next chunk
  86 
  87   // Boundaries of data area (possibly unused)
  88   char* bottom() const { return ((char*) this) + sizeof(Chunk);  }
  89   char* top()    const { return bottom() + _len; }
  90 };
  91 
  92 
  93 //------------------------------Arena------------------------------------------

  54 class ValueObj {
  55  public:
  56   void* operator new(size_t size) throw();
  57   void operator delete(void* p);
  58 };
  59 
  60 // Base class for classes that constitute name spaces.
  61 
  62 class AllStatic {
  63  public:
  64   void* operator new(size_t size) throw();
  65   void operator delete(void* p);
  66 };
  67 
  68 
  69 //------------------------------Chunk------------------------------------------
  70 // Linked list of raw memory chunks
  71 class Chunk: public CHeapObj {
  72  public:
  73   void* operator new(size_t size, size_t length) throw();
  74   // Usual (non-placement) deallocation function to allow placement delete use size_t
  75   // See 3.7.4.2 [basic.stc.dynamic.deallocation] paragraph 2.
  76   void  operator delete(void* p);
  77   void  operator delete(void* p, size_t length);
  78   Chunk(size_t length);
  79 
  80   enum {
  81       init_size =  1*1024,      // Size of first chunk
  82       size      = 32*1024       // Default size of an Arena chunk (following the first)
  83   };
  84   Chunk*       _next;           // Next Chunk in list
  85   size_t       _len;            // Size of this Chunk
  86 
  87   void chop();                  // Chop this chunk
  88   void next_chop();             // Chop next chunk
  89 
  90   // Boundaries of data area (possibly unused)
  91   char* bottom() const { return ((char*) this) + sizeof(Chunk);  }
  92   char* top()    const { return bottom() + _len; }
  93 };
  94 
  95 
  96 //------------------------------Arena------------------------------------------