String XPathQuery::EvaluateToString(XMLElement element) const { if (!query_ || ((!element.GetFile() || !element.GetNode()) && !element.GetXPathNode())) return String::EMPTY; const pugi::xml_node& node = element.GetXPathNode() ? element.GetXPathNode()->node(): pugi::xml_node(element.GetNode()); String result; result.Reserve(query_->evaluate_string(0, 0, node)); // First call get the size query_->evaluate_string(const_cast<pugi::char_t*>(result.CString()), result.Capacity(), node); // Second call get the actual string return result; }
String::String(const String& c) { sizeMemory = c.Capacity(); strng = new char[sizeMemory]; strcpy_s(strng, sizeMemory, c.strng); }
int main() { #ifdef _MSC_VER _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF); #endif printf("Size of String: %d\n", sizeof(String)); printf("Size of Vector: %d\n", sizeof(Vector<int>)); printf("Size of List: %d\n", sizeof(List<int>)); printf("Size of HashMap: %d\n", sizeof(HashMap<int, int>)); printf("Size of RefCounted: %d\n", sizeof(RefCounted)); { printf("\nTesting AutoPtr assignment\n"); AutoPtr<Test> ptr1(new Test); AutoPtr<Test> ptr2; ptr2 = ptr1; } { printf("\nTesting AutoPtr copy construction\n"); AutoPtr<Test> ptr1(new Test); AutoPtr<Test> ptr2(ptr1); } { printf("\nTesting AutoPtr detaching\n"); AutoPtr<Test> ptr1(new Test); // We would now have a memory leak if we don't manually delete the object Test* object = ptr1.Detach(); delete object; } { printf("\nTesting AutoPtr inside a vector\n"); Vector<AutoPtr<Test> > vec; printf("Filling vector\n"); for (size_t i = 0; i < 4; ++i) vec.Push(new Test()); printf("Clearing vector\n"); vec.Clear(); } { printf("\nTesting SharedPtr\n"); SharedPtr<TestRefCounted> ptr1(new TestRefCounted); SharedPtr<TestRefCounted> ptr2(ptr1); printf("Number of refs: %d\n", ptr1.Refs()); } { printf("\nTesting WeakPtr\n"); TestRefCounted* object = new TestRefCounted; WeakPtr<TestRefCounted> ptr1(object); WeakPtr<TestRefCounted> ptr2(ptr1); printf("Number of weak refs: %d expired: %d\n", ptr1.WeakRefs(), ptr1.IsExpired()); ptr2.Reset(); delete object; printf("Number of weak refs: %d expired: %d\n", ptr1.WeakRefs(), ptr1.IsExpired()); } { printf("\nTesting Vector\n"); HiresTimer t; Vector<int> vec; SetRandomSeed(0); for (size_t i = 0; i < NUM_ITEMS; ++i) vec.Push(Rand()); int sum = 0; int count = 0; for (auto it = vec.Begin(); it != vec.End(); ++it) { sum += *it; ++count; } int usec = (int)t.ElapsedUSec(); printf("Size: %d capacity: %d\n", vec.Size(), vec.Capacity()); printf("Counted vector items %d, sum: %d\n", count, sum); printf("Processing took %d usec\n", usec); } { printf("\nTesting List\n"); HiresTimer t; List<int> list; SetRandomSeed(0); for (size_t i = 0; i < NUM_ITEMS; ++i) list.Push(Rand()); int sum = 0; int count = 0; for (auto it = list.Begin(); it != list.End(); ++it) { sum += *it; ++count; } int usec = (int)t.ElapsedUSec(); printf("Size: %d\n", list.Size()); printf("Counted list items %d, sum: %d\n", count, sum); printf("Processing took %d usec\n", usec); printf("\nTesting List insertion\n"); List<int> list2; List<int> list3; for (int i = 0; i < 10; ++i) list3.Push(i); list2.Insert(list2.End(), list3); for (auto it = list2.Begin(); it != list2.End(); ++it) printf("%d ", *it); printf("\n"); } { printf("\nTesting String\n"); HiresTimer t; String test; for (size_t i = 0; i < NUM_ITEMS/4; ++i) test += "Test"; String test2; test2.AppendWithFormat("Size: %d capacity: %d\n", test.Length(), test.Capacity()); printf(test2.CString()); test2 = test2.ToUpper(); printf(test2.CString()); test2.Replace("SIZE:", "LENGTH:"); printf(test2.CString()); int usec = (int)t.ElapsedUSec(); printf("Processing took %d usec\n", usec); } { printf("\nTesting HashSet\n"); HiresTimer t; size_t found = 0; unsigned sum = 0; HashSet<int> testHashSet; srand(0); found = 0; sum = 0; printf("Insert, search and iteration, %d keys\n", NUM_ITEMS); for (size_t i = 0; i < NUM_ITEMS; ++i) { int number = (rand() & 32767); testHashSet.Insert(number); } for (int i = 0; i < 32768; ++i) { if (testHashSet.Find(i) != testHashSet.End()) ++found; } for (auto it = testHashSet.Begin(); it != testHashSet.End(); ++it) sum += *it; int usec = (int)t.ElapsedUSec(); printf("Set size and sum: %d %d\n", testHashSet.Size(), sum); printf("Processing took %d usec\n", usec); } { printf("\nTesting HashMap\n"); HashMap<int, int> testHashMap; for (int i = 0; i < 10; ++i) testHashMap.Insert(MakePair(i, rand() & 32767)); printf("Keys: "); Vector<int> keys = testHashMap.Keys(); for (size_t i = 0; i < keys.Size(); ++i) printf("%d ", keys[i]); printf("\n"); printf("Values: "); Vector<int> values = testHashMap.Values(); for (size_t i = 0; i < values.Size(); ++i) printf("%d ", values[i]); printf("\n"); } return 0; }