bind_test.cpp revision e46c9386c4f79aa40185f79a19fc5b2a7ef528b3 
1#include <algorithm>
2#include <functional>
3
4#include "cppunit/cppunit_proxy.h"
5
6#if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)
7using namespace std;
8#endif
9
10//
11// TestCase class
12//
13class BindTest : public CPPUNIT_NS::TestCase
14{
15  CPPUNIT_TEST_SUITE(BindTest);
16  CPPUNIT_TEST(bind1st1);
17  CPPUNIT_TEST(bind2nd1);
18  CPPUNIT_TEST(bind2nd2);
19#if !defined (STLPORT) || \
20    defined (_STLP_NO_EXTENSIONS) || !defined (_STLP_CLASS_PARTIAL_SPECIALIZATION)
21  CPPUNIT_IGNORE;
22#endif
23  CPPUNIT_TEST(bind2nd3);
24  CPPUNIT_TEST(bind_memfn);
25  CPPUNIT_TEST_SUITE_END();
26
27protected:
28  void bind1st1();
29  void bind2nd1();
30  void bind2nd2();
31  void bind2nd3();
32  void bind_memfn();
33};
34
35CPPUNIT_TEST_SUITE_REGISTRATION(BindTest);
36
37class pre_increment : public binary_function<int, int, int> {
38public:
39  int operator()(int incr, int& val) const
40  { return val += incr; }
41};
42
43class post_increment : public binary_function<int, int, int> {
44public:
45  int operator()(int& val, int incr) const
46  { return val += incr; }
47};
48
49
50//
51// tests implementation
52//
53void BindTest::bind1st1()
54{
55  int array [3] = { 1, 2, 3 };
56  int* p = remove_if((int*)array, (int*)array + 3, bind1st(less<int>(), 2));
57
58  CPPUNIT_ASSERT(p == &array[2]);
59  CPPUNIT_ASSERT(array[0] == 1);
60  CPPUNIT_ASSERT(array[1] == 2);
61
62  for_each((int*)array, (int*)array + 3, bind1st(pre_increment(), 1));
63  CPPUNIT_ASSERT(array[0] == 2);
64  CPPUNIT_ASSERT(array[1] == 3);
65  CPPUNIT_ASSERT(array[2] == 4);
66
67  for_each((int*)array, (int*)array + 3, bind2nd(post_increment(), 1));
68  CPPUNIT_ASSERT(array[0] == 3);
69  CPPUNIT_ASSERT(array[1] == 4);
70  CPPUNIT_ASSERT(array[2] == 5);
71}
72
73void BindTest::bind2nd1()
74{
75  int array [3] = { 1, 2, 3 };
76  replace_if(array, array + 3, binder2nd<greater<int> >(greater<int>(), 2), 4);
77
78  CPPUNIT_ASSERT(array[0]==1);
79  CPPUNIT_ASSERT(array[1]==2);
80  CPPUNIT_ASSERT(array[2]==4);
81}
82void BindTest::bind2nd2()
83{
84  int array [3] = { 1, 2, 3 };
85  replace_if(array, array + 3, bind2nd(greater<int>(), 2), 4);
86  CPPUNIT_ASSERT(array[0]==1);
87  CPPUNIT_ASSERT(array[1]==2);
88  CPPUNIT_ASSERT(array[2]==4);
89}
90
91int test_func1 (const int &param1, const int &param2) {
92  return param1 + param2;
93}
94
95int test_func2 (int &param1, int param2) {
96  param1 += param2;
97  return param1 + param2;
98}
99
100void BindTest::bind2nd3()
101{
102#if defined (STLPORT) && \
103    !defined (_STLP_NO_EXTENSIONS) && defined (_STLP_CLASS_PARTIAL_SPECIALIZATION)
104  int array[3] = { 1, 2, 3 };
105  transform(array, array + 3, array, bind2nd(ptr_fun(test_func1), 1));
106  transform(array, array + 3, array, bind1st(ptr_fun(test_func1), -1));
107  CPPUNIT_ASSERT(array[0] == 1);
108  CPPUNIT_ASSERT(array[1] == 2);
109  CPPUNIT_ASSERT(array[2] == 3);
110
111  transform(array, array + 3, array, bind2nd(ptr_fun(test_func2), 10));
112  CPPUNIT_ASSERT(array[0] == 21);
113  CPPUNIT_ASSERT(array[1] == 22);
114  CPPUNIT_ASSERT(array[2] == 23);
115#endif
116}
117
118class A
119{
120  public:
121    A() : m_n( 0 )
122    {}
123
124    void f( int n ) const {
125#if defined (STLPORT)
126      _STLP_MUTABLE(A, m_n) = n;
127#else
128      m_n = n;
129#endif
130    }
131
132    int v() const
133    { return m_n; }
134
135  private:
136    mutable int m_n;
137};
138
139void BindTest::bind_memfn()
140{
141#if defined (STLPORT) && \
142    !defined (_STLP_NO_EXTENSIONS) && defined (_STLP_CLASS_PARTIAL_SPECIALIZATION)
143  A array[3];
144
145  for_each( array, array + 3, bind2nd( mem_fun_ref(&A::f), 12 ) );
146
147  CPPUNIT_CHECK( array[0].v() == 12 );
148#endif
149}
150