DGtal 2.2.0
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testCountedPtrOrPtr.cpp
Go to the documentation of this file.
1
16
29
31#include <iostream>
32#include "DGtal/base/Common.h"
33#include "DGtal/base/CountedPtrOrPtr.h"
35
36using namespace std;
37using namespace DGtal;
38
40// Functions for testing class CountedPtrOrPtr.
42
43struct A {
44 A( int _a ) : a( _a )
45 {
46 ++nb;
47 trace.info() << "#" << nb << " A::A( int ), a is " << a << std::endl;
48 }
49 A( const A& other ) : a( other.a )
50 {
51 ++nb;
52 trace.info() << "#" << nb << " A::A( const A& ), a is " << a << std::endl;
53 }
54 A& operator=( const A& other )
55 {
56 if ( this != &other )
57 a = other.a;
58 trace.info() << "#" << nb << " A::op=( const A& ), a is " << a << std::endl;
59 return *this;
60 }
61 ~A()
62 {
63 --nb;
64 trace.info() << "#" << nb << " A::~A(), a was " << a << std::endl;
65 }
66 static int nb;
67 int a;
68};
69
70int A::nb = 0;
71
72bool testCountedPtrOrPtrMemory()
73{
74 unsigned int nbok = 0;
75 unsigned int nb = 0;
76 trace.beginBlock ( "Testing CountedPtrOrPtr memory management..." );
77
78 trace.beginBlock ( "An invalid CountedPtrOrPtr does not create any instance." );
79 {
80 CountedPtrOrPtr<A> cptr;
81 }
82 ++nb; nbok += A::nb == 0 ? 1 : 0;
83 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 0" << std::endl;
84 trace.endBlock();
85
86 trace.beginBlock ( "A CountedPtrOrPtr can be used as a simple pointer on an object without acquiring it." );
87 {
88 A a( 17 );
89 ++nb; nbok += A::nb == 1 ? 1 : 0;
90 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 1" << std::endl;
91 {
92 CountedPtrOrPtr<A> cptr( &a, false );
93 ++nb; nbok += A::nb == 1 ? 1 : 0;
94 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 1" << std::endl;
95 ++nb; nbok += cptr.isSimple() ? 1 : 0;
96 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.isSimple()" << std::endl;
97 }
98 ++nb; nbok += A::nb == 1 ? 1 : 0;
99 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 1" << std::endl;
100 }
101 ++nb; nbok += A::nb == 0 ? 1 : 0;
102 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 0" << std::endl;
103 trace.endBlock();
104
105 trace.beginBlock ( "CountedPtrOrPtr can be used as a smart pointer with acquisition and automatic deallocation." );
106 {
107 CountedPtrOrPtr<A> cptr( new A( 10 ) );
108 ++nb; nbok += A::nb == 1 ? 1 : 0;
109 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 1" << std::endl;
110 ++nb; nbok += cptr.isSmart() ? 1 : 0;
111 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.isSmart()" << std::endl;
112 }
113 ++nb; nbok += A::nb == 0 ? 1 : 0;
114 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 0" << std::endl;
115 trace.endBlock();
116
117 trace.beginBlock ( "CountedPtrOrPtr can be initialized with = CountedPtrOrPtr<A>( pointer )." );
118 {
119 CountedPtrOrPtr<A> cptr = CountedPtrOrPtr<A>( new A( 5 ) );
120 ++nb; nbok += A::nb == 1 ? 1 : 0;
121 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 1" << std::endl;
122 ++nb; nbok += cptr.isSmart() ? 1 : 0;
123 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.isSmart()" << std::endl;
124 }
125 ++nb; nbok += A::nb == 0 ? 1 : 0;
126 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 0" << std::endl;
127 trace.endBlock();
128
129 trace.beginBlock ( "CountedPtrOrPtr can be initialized with = CountedPtr<A>( pointer )." );
130 {
131 CountedPtrOrPtr<A> cptr = CountedPtr<A>( new A( 5 ) );
132 ++nb; nbok += A::nb == 1 ? 1 : 0;
133 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 1" << std::endl;
134 ++nb; nbok += cptr.isSmart() ? 1 : 0;
135 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.isSmart()" << std::endl;
136 }
137 ++nb; nbok += A::nb == 0 ? 1 : 0;
138 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 0" << std::endl;
139 trace.endBlock();
140
141 trace.beginBlock ( "CountedPtrOrPtr allows to share objects." );
142 {
143 CountedPtrOrPtr<A> cptr( new A( 7 ) );
144 CountedPtrOrPtr<A> cptr2 = cptr;
145 ++nb; nbok += A::nb == 1 ? 1 : 0;
146 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 1" << std::endl;
147 ++nb; nbok += cptr.get() == cptr2.get() ? 1 : 0;
148 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.get() == cptr2.get()" << std::endl;
149 ++nb; nbok += cptr.count() == 2 ? 1 : 0;
150 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.count() == 2" << std::endl;
151 ++nb; nbok += cptr2.count() == 2 ? 1 : 0;
152 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr2.count() == 2" << std::endl;
153 }
154 ++nb; nbok += A::nb == 0 ? 1 : 0;
155 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 0" << std::endl;
156 trace.endBlock();
157
158 trace.beginBlock ( "CountedPtrOrPtr allows to share objects with CountedPtr." );
159 {
160 CountedPtr<A> cptr( new A( 7 ) );
161 CountedPtrOrPtr<A> cptr2 = cptr;
162 ++nb; nbok += A::nb == 1 ? 1 : 0;
163 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 1" << std::endl;
164 ++nb; nbok += cptr.get() == cptr2.get() ? 1 : 0;
165 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.get() == cptr2.get()" << std::endl;
166 ++nb; nbok += cptr.count() == 2 ? 1 : 0;
167 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.count() == 2" << std::endl;
168 ++nb; nbok += cptr2.count() == 2 ? 1 : 0;
169 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr2.count() == 2" << std::endl;
170 }
171 ++nb; nbok += A::nb == 0 ? 1 : 0;
172 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 0" << std::endl;
173 trace.endBlock();
174
175 trace.beginBlock ( "CountedPtrOrPtr are smart wrt assignment." );
176 {
177 CountedPtrOrPtr<A> cptr( new A( 3 ) );
178 CountedPtrOrPtr<A> cptr2( new A( 12 ) );
179 ++nb; nbok += A::nb == 2 ? 1 : 0;
180 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 2" << std::endl;
181 ++nb; nbok += cptr.get() != cptr2.get() ? 1 : 0;
182 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.get() != cptr2.get()" << std::endl;
183 cptr = cptr2;
184 ++nb; nbok += A::nb == 1 ? 1 : 0;
185 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 1" << std::endl;
186 ++nb; nbok += cptr.get()->a == 12 ? 1 : 0;
187 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.get()->a == 12" << std::endl;
188 ++nb; nbok += cptr.get() == cptr2.get() ? 1 : 0;
189 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.get() == cptr2.get()" << std::endl;
190 ++nb; nbok += cptr.count() == 2 ? 1 : 0;
191 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.count() == 2" << std::endl;
192 ++nb; nbok += cptr2.count() == 2 ? 1 : 0;
193 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr2.count() == 2" << std::endl;
194 }
195 ++nb; nbok += A::nb == 0 ? 1 : 0;
196 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 0" << std::endl;
197 trace.endBlock();
198
199 trace.beginBlock ( "CountedPtrOrPtr and CountedPtr are smart wrt assignment." );
200 {
201 CountedPtrOrPtr<A> cptr( new A( 3 ) );
202 CountedPtr<A> cptr2( new A( 12 ) );
203 ++nb; nbok += A::nb == 2 ? 1 : 0;
204 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 2" << std::endl;
205 ++nb; nbok += cptr.get() != cptr2.get() ? 1 : 0;
206 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.get() != cptr2.get()" << std::endl;
207 cptr = cptr2;
208 ++nb; nbok += A::nb == 1 ? 1 : 0;
209 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 1" << std::endl;
210 ++nb; nbok += cptr.get()->a == 12 ? 1 : 0;
211 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.get()->a == 12" << std::endl;
212 ++nb; nbok += cptr.get() == cptr2.get() ? 1 : 0;
213 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.get() == cptr2.get()" << std::endl;
214 cptr.get()->a = 5; // does compile.
215 ++nb; nbok += cptr.get()->a == 5 ? 1 : 0;
216 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.get()->a == 5" << std::endl;
217 ++nb; nbok += cptr.count() == 2 ? 1 : 0;
218 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr.count() == 2" << std::endl;
219 ++nb; nbok += cptr2.count() == 2 ? 1 : 0;
220 trace.info() << "(" << nbok << "/" << nb << ") " << "cptr2.count() == 2" << std::endl;
221 }
222 ++nb; nbok += A::nb == 0 ? 1 : 0;
223 trace.info() << "(" << nbok << "/" << nb << ") " << "A::nb == 0" << std::endl;
224 trace.endBlock();
225
226 trace.endBlock();
227 return nb == nbok;
228}
229
230
232// Standard services - public :
233
234int main( int argc, char** argv )
235{
236 trace.beginBlock ( "Testing class CountedPtrOrPtr" );
237 trace.info() << "Args:";
238 for ( int i = 0; i < argc; ++i )
239 trace.info() << " " << argv[ i ];
240 trace.info() << endl;
241
242 bool res = testCountedPtrOrPtrMemory();
243 trace.emphase() << ( res ? "Passed." : "Error." ) << endl;
244 trace.endBlock();
245 return res ? 0 : 1;
246}
247// //
DGtal::CountedPtrOrPtr
Aim: Smart or simple pointer on T. It can be a smart pointer based on reference counts or a simple po...
Definition CountedPtrOrPtr.h:96
DGtal::CountedPtrOrPtr::get
T * get() const noexcept
Definition CountedPtrOrPtr.h:290
DGtal::CountedPtrOrPtr::count
unsigned int count() const
Definition CountedPtrOrPtr.h:314
DGtal::CountedPtrOrPtr::CountedPtrOrPtr
CountedPtrOrPtr(T *p=0, bool isCountedPtr=true)
Definition CountedPtrOrPtr.h:121
DGtal::CountedPtr
Aim: Smart pointer based on reference counts.
Definition CountedPtr.h:80
DGtal::CountedPtr::get
T * get() const noexcept
Definition CountedPtr.h:195
DGtal::CountedPtr::count
unsigned int count() const
Definition CountedPtr.h:236
DGtal::Trace::beginBlock
void beginBlock(const std::string &keyword="")
DGtal::Trace::emphase
std::ostream & emphase()
DGtal::Trace::info
std::ostream & info()
DGtal::Trace::endBlock
double endBlock()
DGtal
DGtal is the top-level namespace which contains all DGtal functions and types.
Definition ClosedIntegerHalfPlane.h:49
DGtal::trace
Trace trace
std
STL namespace.
A::operator=
A & operator=(const A &other)
Definition testCountedPtrOrPtr.cpp:54
A::A
A(int _a)
Definition testCountedPtrOrPtr.cpp:44
A::A
A(const A &other)
Definition testCountedPtrOrPtr.cpp:49
testCountedPtrOrPtrMemory
bool testCountedPtrOrPtrMemory()
Definition testCountedPtrOrPtr.cpp:72
main
int main(int, char **)
Definition testIntegerComputer.cpp:331