1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/genericopenlibs/cppstdlib/stl/test/unit/uninitialized_test.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,242 @@
1.4 +#include <memory>
1.5 +#include <vector>
1.6 +#include <list>
1.7 +
1.8 +#include "cppunit/cppunit_proxy.h"
1.9 +
1.10 +#if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)
1.11 +using namespace std;
1.12 +#endif
1.13 +
1.14 +//
1.15 +// TestCase class
1.16 +//
1.17 +class UninitializedTest : public CPPUNIT_NS::TestCase
1.18 +{
1.19 + CPPUNIT_TEST_SUITE(UninitializedTest);
1.20 + CPPUNIT_TEST(copy_test);
1.21 + //CPPUNIT_TEST(fill_test);
1.22 + //CPPUNIT_TEST(fill_n_test);
1.23 + CPPUNIT_TEST_SUITE_END();
1.24 +
1.25 +protected:
1.26 + void copy_test();
1.27 + void fill_test();
1.28 + void fill_n_test();
1.29 +};
1.30 +
1.31 +CPPUNIT_TEST_SUITE_REGISTRATION(UninitializedTest);
1.32 +
1.33 +struct NotTrivialCopyStruct {
1.34 + NotTrivialCopyStruct() : member(0) {}
1.35 + NotTrivialCopyStruct(NotTrivialCopyStruct const&) : member(1) {}
1.36 +
1.37 + int member;
1.38 +};
1.39 +
1.40 +struct TrivialCopyStruct {
1.41 + TrivialCopyStruct() : member(0) {}
1.42 + TrivialCopyStruct(TrivialCopyStruct const&) : member(1) {}
1.43 +
1.44 + int member;
1.45 +};
1.46 +
1.47 +struct TrivialInitStruct {
1.48 + TrivialInitStruct()
1.49 + { ++nbConstructorCalls; }
1.50 +
1.51 + static size_t nbConstructorCalls;
1.52 +};
1.53 +
1.54 +size_t TrivialInitStruct::nbConstructorCalls = 0;
1.55 +
1.56 +#if defined (STLPORT)
1.57 +namespace std
1.58 +{
1.59 + _STLP_TEMPLATE_NULL
1.60 + struct __type_traits<TrivialCopyStruct> {
1.61 + typedef __false_type has_trivial_default_constructor;
1.62 + //This is a wrong declaration just to check that internaly a simple memcpy is called:
1.63 + typedef __true_type has_trivial_copy_constructor;
1.64 + typedef __true_type has_trivial_assignment_operator;
1.65 + typedef __true_type has_trivial_destructor;
1.66 + typedef __false_type is_POD_type;
1.67 + };
1.68 +
1.69 + _STLP_TEMPLATE_NULL
1.70 + struct __type_traits<TrivialInitStruct> {
1.71 + //This is a wrong declaration just to check that internaly no initialization is done:
1.72 + typedef __true_type has_trivial_default_constructor;
1.73 + typedef __true_type has_trivial_copy_constructor;
1.74 + typedef __true_type has_trivial_assignment_operator;
1.75 + typedef __true_type has_trivial_destructor;
1.76 + typedef __false_type is_POD_type;
1.77 + };
1.78 +}
1.79 +#endif
1.80 +
1.81 +struct base {};
1.82 +struct derived : public base {};
1.83 +
1.84 +//
1.85 +// tests implementation
1.86 +//
1.87 +void UninitializedTest::copy_test()
1.88 +{
1.89 + {
1.90 + //Random iterators
1.91 + {
1.92 + vector<NotTrivialCopyStruct> src(10);
1.93 + vector<NotTrivialCopyStruct> dst(10);
1.94 + uninitialized_copy(src.begin(), src.end(), dst.begin());
1.95 + vector<NotTrivialCopyStruct>::const_iterator it(dst.begin()), end(dst.end());
1.96 + for (; it != end; ++it) {
1.97 + CPPUNIT_ASSERT( (*it).member == 1 );
1.98 + }
1.99 + }
1.100 + {
1.101 + /** Note: we use static arrays here so the iterators are always
1.102 + pointers, even in debug mode. */
1.103 + size_t const count = 10;
1.104 + TrivialCopyStruct src[count];
1.105 + TrivialCopyStruct dst[count];
1.106 +
1.107 + TrivialCopyStruct* it = src + 0;
1.108 + TrivialCopyStruct* end = src + count;
1.109 + for (; it != end; ++it) {
1.110 + (*it).member = 0;
1.111 + }
1.112 +
1.113 + uninitialized_copy(src+0, src+count, dst+0);
1.114 + for (it = dst+0, end = dst+count; it != end; ++it) {
1.115 +#if defined (STLPORT)
1.116 + /* If the member is 1, it means that library has not found any
1.117 + optimization oportunity and called the regular copy-ctor instead. */
1.118 + CPPUNIT_ASSERT( (*it).member == 0 );
1.119 +#else
1.120 + CPPUNIT_ASSERT( (*it).member == 1 );
1.121 +#endif
1.122 + }
1.123 + }
1.124 + }
1.125 +
1.126 + {
1.127 + //Bidirectional iterator
1.128 + {
1.129 + vector<NotTrivialCopyStruct> src(10);
1.130 + list<NotTrivialCopyStruct> dst(10);
1.131 +
1.132 + list<NotTrivialCopyStruct>::iterator it(dst.begin()), end(dst.end());
1.133 + for (; it != end; ++it) {
1.134 + (*it).member = -1;
1.135 + }
1.136 +
1.137 + uninitialized_copy(src.begin(), src.end(), dst.begin());
1.138 +
1.139 + for (it = dst.begin(); it != end; ++it) {
1.140 + CPPUNIT_ASSERT( (*it).member == 1 );
1.141 + }
1.142 + }
1.143 +
1.144 + {
1.145 + list<NotTrivialCopyStruct> src(10);
1.146 + vector<NotTrivialCopyStruct> dst(10);
1.147 +
1.148 + vector<NotTrivialCopyStruct>::iterator it(dst.begin()), end(dst.end());
1.149 + for (; it != end; ++it) {
1.150 + (*it).member = -1;
1.151 + }
1.152 +
1.153 + uninitialized_copy(src.begin(), src.end(), dst.begin());
1.154 +
1.155 + for (it = dst.begin(); it != end; ++it) {
1.156 + CPPUNIT_ASSERT( (*it).member == 1 );
1.157 + }
1.158 + }
1.159 + }
1.160 +
1.161 + {
1.162 + //Using containers of native types:
1.163 +#if !defined (STLPORT) || !defined (_STLP_NO_MEMBER_TEMPLATES)
1.164 + {
1.165 + vector<int> src;
1.166 + int i;
1.167 + for (i = -5; i < 6; ++i) {
1.168 + src.push_back(i);
1.169 + }
1.170 +
1.171 + //Building a vector result in a uninitialized_copy call internally
1.172 + vector<unsigned int> dst(src.begin(), src.end());
1.173 + vector<unsigned int>::const_iterator it(dst.begin());
1.174 + for (i = -5; i < 6; ++i, ++it) {
1.175 + CPPUNIT_ASSERT( *it == (unsigned int)i );
1.176 + }
1.177 + }
1.178 +
1.179 + {
1.180 + vector<char> src;
1.181 + char i;
1.182 + for (i = -5; i < 6; ++i) {
1.183 + src.push_back(i);
1.184 + }
1.185 +
1.186 + //Building a vector result in a uninitialized_copy call internally
1.187 + vector<unsigned int> dst(src.begin(), src.end());
1.188 + vector<unsigned int>::const_iterator it(dst.begin());
1.189 + for (i = -5; i < 6; ++i, ++it) {
1.190 + CPPUNIT_ASSERT( *it == (unsigned int)i );
1.191 + }
1.192 + }
1.193 +
1.194 + {
1.195 + vector<int> src;
1.196 + int i;
1.197 + for (i = -5; i < 6; ++i) {
1.198 + src.push_back(i);
1.199 + }
1.200 +
1.201 + //Building a vector result in a uninitialized_copy call internally
1.202 + vector<float> dst(src.begin(), src.end());
1.203 + vector<float>::const_iterator it(dst.begin());
1.204 + for (i = -5; i < 6; ++i, ++it) {
1.205 + CPPUNIT_ASSERT( *it == (float)i );
1.206 + }
1.207 + }
1.208 +
1.209 + {
1.210 + vector<vector<float>*> src(10);
1.211 + vector<vector<float>*> dst(src.begin(), src.end());
1.212 + }
1.213 +
1.214 + {
1.215 + derived d;
1.216 + //base *pb = &d;
1.217 + derived *pd = &d;
1.218 + //base **ppb = &pd;
1.219 + vector<derived*> src(10, pd);
1.220 + vector<base*> dst(src.begin(), src.end());
1.221 + vector<base*>::iterator it(dst.begin()), end(dst.end());
1.222 + for (; it != end; ++it) {
1.223 + CPPUNIT_ASSERT( (*it) == pd );
1.224 + }
1.225 + }
1.226 +#endif
1.227 + }
1.228 +
1.229 + {
1.230 + //Vector initialization:
1.231 + vector<TrivialInitStruct> vect(10);
1.232 + //Just 1 constructor call for the default value:
1.233 + CPPUNIT_ASSERT( TrivialInitStruct::nbConstructorCalls == 1 );
1.234 + }
1.235 +}
1.236 +
1.237 +/*
1.238 +void UninitializedTest::fill_test()
1.239 +{
1.240 +}
1.241 +
1.242 +void UninitializedTest::fill_n_test()
1.243 +{
1.244 +}
1.245 +*/