Qt 4.8
qautoptr_p.h
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41 
42 //
43 // W A R N I N G
44 // -------------
45 //
46 // This file is not part of the Qt API. It exists purely as an
47 // implementation detail. This header file may change from version to
48 // version without notice, or even be removed.
49 //
50 // We mean it.
51 
52 #ifndef QPatternist_AutoPtr_p_h
53 #define QPatternist_AutoPtr_p_h
54 
55 #include <QtGlobal>
56 
58 
59 namespace QPatternist
60 {
61  template<typename T>
62  class AutoPtrRef
63  {
64  public:
65  explicit AutoPtrRef(T *const other) : m_ptr(other)
66  {
67  }
68 
69  T* m_ptr;
70  };
71 
72  template<typename T>
73  class AutoPtr
74  {
75  public:
76  explicit inline AutoPtr(T *pointer = 0) : m_ptr(pointer)
77  {
78  }
79 
80  inline AutoPtr(AutoPtr<T> &other) : m_ptr(other.release())
81  {
82  }
83 
84  inline ~AutoPtr()
85  {
86  delete m_ptr;
87  }
88 
89  inline T &operator*() const
90  {
92  return *m_ptr;
93  }
94 
95  T *operator->() const
96  {
98  return m_ptr;
99  }
100 
101  inline bool operator!() const
102  {
103  return !m_ptr;
104  }
105 
106  inline operator bool() const
107  {
108  return m_ptr != 0;
109  }
110 
112  {
113  }
114 
116  {
117  if(ref.m_ptr != m_ptr)
118  {
119  delete m_ptr;
120  m_ptr = ref.m_ptr;
121  }
122  return *this;
123  }
124 
125  template<typename L>
126  operator AutoPtrRef<L>()
127  {
128  return AutoPtrRef<L>(this->release());
129  }
130 
131  template<typename L>
132  operator AutoPtr<L>()
133  {
134  return AutoPtr<L>(this->release());
135  }
136 
137  template<typename L>
138  inline AutoPtr(AutoPtr<L>& other) : m_ptr(other.release())
139  {
140  }
141 
142  inline T *release()
143  {
144  T *const retval = m_ptr;
145  m_ptr = 0;
146  return retval;
147  }
148 
149  inline T *data() const
150  {
151  return m_ptr;
152  }
153 
154  void reset(T * other = 0)
155  {
156  if(other != m_ptr)
157  {
158  delete m_ptr;
159  m_ptr = other;
160  }
161  }
162 
163  inline AutoPtr &operator=(AutoPtr &other)
164  {
165  reset(other.release());
166  return *this;
167  }
168 
169  private:
170  T *m_ptr;
171  };
172 }
173 
175 #endif
bool operator!() const
Definition: qautoptr_p.h:101
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
T & operator*() const
Definition: qautoptr_p.h:89
A smart pointer very similar to std::auto_ptr.
Definition: qautoptr_p.h:73
AutoPtrRef(T *const other)
Definition: qautoptr_p.h:65
Q_CORE_EXPORT QTextStream & reset(QTextStream &s)
AutoPtr & operator=(AutoPtr &other)
Definition: qautoptr_p.h:163
T * data() const
Definition: qautoptr_p.h:149
AutoPtr(AutoPtr< L > &other)
Definition: qautoptr_p.h:138
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The namespace for the internal API of QtXmlPatterns.
void reset(T *other=0)
Definition: qautoptr_p.h:154
AutoPtr(T *pointer=0)
Definition: qautoptr_p.h:76
#define Q_ASSERT_X(cond, where, what)
Definition: qglobal.h:1837
AutoPtr(AutoPtrRef< T > ref)
Definition: qautoptr_p.h:111
AutoPtr(AutoPtr< T > &other)
Definition: qautoptr_p.h:80
T * operator->() const
Definition: qautoptr_p.h:95
AutoPtr & operator=(AutoPtrRef< T > ref)
Definition: qautoptr_p.h:115
#define Q_FUNC_INFO
Definition: qglobal.h:1871