OpenSystemsDevelopment / qpdf

Commit aa035961b38b6f01090e6f6a2ee4c9b9fb5041e8

Authored by Jay Berkenbilt
1 parent 047bcfca

add * and -> operators 

git-svn-id: svn+q:///qpdf/trunk@1029 71b93d88-0707-0410-a8cf-f5a4172ac649
Inline Side-by-side
Showing 3 changed files with 40 additions and 0 deletions
include/qpdf/PointerHolder.hh
  View file @aa03596
... ... @@ -124,6 +124,24 @@ class PointerHolder
124 124 return this->data->refcount;
125 125 }
126 126  
  127 + T const& operator*() const
  128 + {
  129 + return *this->data->pointer;
  130 + }
  131 + T& operator*()
  132 + {
  133 + return *this->data->pointer;
  134 + }
  135 +
  136 + T const* operator->() const
  137 + {
  138 + return this->data->pointer;
  139 + }
  140 + T* operator->()
  141 + {
  142 + return this->data->pointer;
  143 + }
  144 +
127 145 private:
128 146 void init(Data* data)
129 147 {
... ...
libtests/pointer_holder.cc
  View file @aa03596
... ... @@ -12,6 +12,7 @@ class Object
12 12 Object();
13 13 ~Object();
14 14 void hello();
  15 + void hello() const;
15 16  
16 17 private:
17 18 static int next_id;
... ... @@ -38,8 +39,21 @@ Object::hello()
38 39 std::cout << "calling Object::hello for " << this->id << std::endl;
39 40 }
40 41  
  42 +void
  43 +Object::hello() const
  44 +{
  45 + std::cout << "calling Object::hello const for " << this->id << std::endl;
  46 +}
  47 +
41 48 typedef PointerHolder<Object> ObjectHolder;
42 49  
  50 +void callHello(ObjectHolder const& oh)
  51 +{
  52 + oh.getPointer()->hello();
  53 + oh->hello();
  54 + (*oh).hello();
  55 +}
  56 +
43 57 int main(int argc, char* argv[])
44 58 {
45 59 std::list<ObjectHolder> ol1;
... ... @@ -74,6 +88,9 @@ int main(int argc, char* argv[])
74 88 }
75 89  
76 90 ol1.front().getPointer()->hello();
  91 + ol1.front()->hello();
  92 + (*ol1.front()).hello();
  93 + callHello(ol1.front());
77 94 ol1.pop_front();
78 95 std::cout << "goodbye" << std::endl;
79 96 return 0;
... ...
libtests/qtest/ph/ph.out
  View file @aa03596
... ... @@ -7,6 +7,11 @@ equal okay
7 7 less than okay
8 8 created Object, id 3
9 9 calling Object::hello for 1
  10 +calling Object::hello for 1
  11 +calling Object::hello for 1
  12 +calling Object::hello const for 1
  13 +calling Object::hello const for 1
  14 +calling Object::hello const for 1
10 15 goodbye
11 16 destroyed Object, id 3
12 17 destroyed Object, id 1
... ...