Visual C++ .NET/Collections/queue — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
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Текущая версия на 15:05, 26 мая 2010
Содержание
Add value to a Queue with Enqueue
<source lang="csharp">
- include "stdafx.h"
using namespace System; using namespace System::Collections; void main() {
Queue ^que = gcnew Queue(); Stack ^stk = gcnew Stack(); array<String^>^ entry = gcnew array<String^> { "First", "Second", "Third", "Fourth" }; for (int i = 0; i < entry->Length; i++) { que->Enqueue(entry[i]); stk->Push(entry[i]); Console::WriteLine("{0}\t\t{1}", entry[i], entry[i]); } while ((que->Count > 0) && (stk->Count > 0)) { Console::WriteLine("{0}\t\t{1}", que->Dequeue(), stk->Pop()); } que->Clear(); stk->Clear();
}
</source>
Call dequeue to remove element from a Queue
<source lang="csharp">
- include "stdafx.h"
using namespace System; using namespace System::Collections; void main() {
Queue ^que = gcnew Queue(); Stack ^stk = gcnew Stack(); array<String^>^ entry = gcnew array<String^> { "First", "Second", "Third", "Fourth" }; for (int i = 0; i < entry->Length; i++) { que->Enqueue(entry[i]); stk->Push(entry[i]); Console::WriteLine("{0}\t\t{1}", entry[i], entry[i]); } while ((que->Count > 0) && (stk->Count > 0)) { Console::WriteLine("{0}\t\t{1}", que->Dequeue(), stk->Pop()); } que->Clear(); stk->Clear();
}
</source>
Display Queue by IEnumerator<> interface
<source lang="csharp">
- include "stdafx.h"
- include <cliext/queue>
using namespace System; using namespace cliext; using namespace System::Collections::Generic; ref class MyClass { public:
String^ Name; MyClass() : Name(String::Empty) { } MyClass(String^ name) : Name(name) { } MyClass(const MyClass% orig){ Name = orig.Name; } MyClass% operator=(const MyClass% orig){ if (this != %orig) Name = orig.Name; return *this; } ~MyClass() { } bool operator<(const MyClass^ rhs){ return (Name->CompareTo(rhs->Name) < 0); } bool operator==(const MyClass^ rhs){ return (Name->Equals(rhs->Name)); }
}; int main(array<System::String ^> ^args) {
queue<MyClass^> petq; petq.push(gcnew MyClass("A")); petq.push(gcnew MyClass("B")); petq.push(gcnew MyClass("C")); petq.push(gcnew MyClass("D")); for each (MyClass^ pet in petq.get_container()) Console::Write("{0} ", pet->Name); return 0;
}
</source>
Get element count for a Queue
<source lang="csharp">
- include "stdafx.h"
using namespace System; using namespace System::Collections; void main() {
Queue ^que = gcnew Queue(); Stack ^stk = gcnew Stack(); array<String^>^ entry = gcnew array<String^> { "First", "Second", "Third", "Fourth" }; for (int i = 0; i < entry->Length; i++) { que->Enqueue(entry[i]); stk->Push(entry[i]); Console::WriteLine("{0}\t\t{1}", entry[i], entry[i]); } while ((que->Count > 0) && (stk->Count > 0)) { Console::WriteLine("{0}\t\t{1}", que->Dequeue(), stk->Pop()); } que->Clear(); stk->Clear();
}
</source>
Get the front of a queue
<source lang="csharp">
- include "stdafx.h"
- include <cliext/queue>
using namespace System; using namespace cliext; using namespace System::Collections::Generic; ref class MyClass { public:
String^ Name; MyClass() : Name(String::Empty) { } MyClass(String^ name) : Name(name) { } MyClass(const MyClass% orig){ Name = orig.Name; } MyClass% operator=(const MyClass% orig){ if (this != %orig) Name = orig.Name; return *this; } ~MyClass() { } bool operator<(const MyClass^ rhs){ return (Name->CompareTo(rhs->Name) < 0); } bool operator==(const MyClass^ rhs){ return (Name->Equals(rhs->Name)); }
}; int main(array<System::String ^> ^args) {
queue<MyClass^> petq; petq.push(gcnew MyClass("A")); petq.push(gcnew MyClass("B")); petq.push(gcnew MyClass("C")); petq.push(gcnew MyClass("D")); while (!petq.empty()) { Console::Write("{0} ", petq.front()->Name); petq.pop(); } return 0;
}
</source>
Get the last element in a queue
<source lang="csharp">
- include "stdafx.h"
- include <cliext/queue>
using namespace System; using namespace cliext; using namespace System::Collections::Generic; ref class MyClass { public:
String^ Name; MyClass() : Name(String::Empty) { } MyClass(String^ name) : Name(name) { } MyClass(const MyClass% orig){ Name = orig.Name; } MyClass% operator=(const MyClass% orig){ if (this != %orig) Name = orig.Name; return *this; } ~MyClass() { } bool operator<(const MyClass^ rhs){ return (Name->CompareTo(rhs->Name) < 0); } bool operator==(const MyClass^ rhs){ return (Name->Equals(rhs->Name)); }
}; int main(array<System::String ^> ^args) {
queue<MyClass^> petq; petq.push(gcnew MyClass("A")); petq.push(gcnew MyClass("B")); petq.push(gcnew MyClass("C")); petq.push(gcnew MyClass("D")); queue<MyClass^>::value_type lastpet = petq.back(); System::Console::WriteLine("The last pet in queue is:\n{0}", lastpet->Name); return 0;
}
</source>
Is queue empty
<source lang="csharp">
- include "stdafx.h"
- include <cliext/queue>
using namespace System; using namespace cliext; using namespace System::Collections::Generic; ref class MyClass { public:
String^ Name; MyClass() : Name(String::Empty) { } MyClass(String^ name) : Name(name) { } MyClass(const MyClass% orig){ Name = orig.Name; } MyClass% operator=(const MyClass% orig){ if (this != %orig) Name = orig.Name; return *this; } ~MyClass() { } bool operator<(const MyClass^ rhs){ return (Name->CompareTo(rhs->Name) < 0); } bool operator==(const MyClass^ rhs){ return (Name->Equals(rhs->Name)); }
}; int main(array<System::String ^> ^args) {
queue<MyClass^> petq; petq.push(gcnew MyClass("A")); petq.push(gcnew MyClass("B")); petq.push(gcnew MyClass("C")); petq.push(gcnew MyClass("D")); while (!petq.empty()) { Console::Write("{0} ", petq.front()->Name); petq.pop(); } return 0;
}
</source>
Push element to a queue
<source lang="csharp">
- include "stdafx.h"
- include <cliext/queue>
using namespace System; using namespace cliext; using namespace System::Collections::Generic; ref class MyClass { public:
String^ Name; MyClass() : Name(String::Empty) { } MyClass(String^ name) : Name(name) { } MyClass(const MyClass% orig) { Name = orig.Name; } MyClass% operator=(const MyClass% orig) { if (this != %orig) Name = orig.Name; return *this; } ~MyClass() { } bool operator<(const MyClass^ rhs) { return (Name->CompareTo(rhs->Name) < 0); } bool operator==(const MyClass^ rhs) { return (Name->Equals(rhs->Name)); }
}; int main(array<System::String ^> ^args) {
queue<MyClass^> petq; petq.push(gcnew MyClass("A")); petq.push(gcnew MyClass("B")); petq.push(gcnew MyClass("C")); petq.push(gcnew MyClass("D"));
return 0;
}
</source>