в 15:31, 26 мая 2010

2010-05-26T15:31:02Z

Admin: 1 версия

2010-05-26T12:05:09Z

1 версия

Новая страница

==Adding element to a set==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/set>
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)
{
set<MyClass^> pets;
MyClass^ King = gcnew MyClass("K");
pets.insert(pets.end(), gcnew MyClass("A"));
pets.insert(King);
pets.insert(gcnew MyClass("B"));
return (0);
}

</source>

==Display set with for loop using reverse_iterator==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/set>
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)
{
set<MyClass^> pets;
MyClass^ King = gcnew MyClass("K");
pets.insert(pets.end(), gcnew MyClass("A"));
pets.insert(King);
pets.insert(gcnew MyClass("B"));
set<MyClass^>::pair_iter_bool success;
success = pets.insert(gcnew MyClass("N"));
Console::WriteLine("First Time {0} is added {1}", success.first->Name,
success.second ? "successfully" : "unsuccessfully");
success = pets.insert(gcnew MyClass("N"));
Console::WriteLine("Second Time {0} is added {1}", success.first->Name,
success.second ? "successfully" : "unsuccessfully");
set<MyClass^>::reverse_iterator pet_ri;
for(pet_ri = pets.rbegin(); pet_ri != pets.rend(); pet_ri++)
System::Console::Write("{0} ", pet_ri->Name);

return (0);
}

</source>

==Find element in a set==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/set>
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)
{
set<MyClass^> pets;
MyClass^ King = gcnew MyClass("K");
pets.insert(pets.end(), gcnew MyClass("A"));
pets.insert(King);
pets.insert(gcnew MyClass("B"));

Console::WriteLine("\n\nFound = {0}", pets.find(King)->Name);
return (0);
}

</source>

==find function returns set<MyClass^>::iterator==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/set>
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)
{
set<MyClass^> pets;
MyClass^ King = gcnew MyClass("K");
pets.insert(pets.end(), gcnew MyClass("A"));
pets.insert(King);
pets.insert(gcnew MyClass("B"));

set<MyClass^>::iterator Lady = pets.find(gcnew MyClass("L"));
Console::WriteLine(Lady == pets.end());
return (0);
}

</source>

==Insert and erase element from a set==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/set>
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)
{
set<MyClass^> pets;
MyClass^ King = gcnew MyClass("K");
pets.insert(pets.end(), gcnew MyClass("A"));
pets.insert(King);
pets.insert(gcnew MyClass("B"));

set<MyClass^> copy;
set<MyClass^>::iterator pets_e = pets.end();
copy.insert(pets.begin(), --pets_e);
set<MyClass^>::iterator pets_cb = copy.begin();
copy.erase(++pets_cb);
copy.erase(gcnew MyClass("Lady"));
for each (MyClass^ pet in copy)
System::Console::Write("{0} ", pet->Name);
return (0);
}

</source>

==Inserting duplicate elements to set==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/set>
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)
{
set<MyClass^> pets;
MyClass^ King = gcnew MyClass("K");
pets.insert(pets.end(), gcnew MyClass("A"));
pets.insert(King);
pets.insert(gcnew MyClass("B"));
set<MyClass^>::pair_iter_bool success;
success = pets.insert(gcnew MyClass("N"));
Console::WriteLine("First Time {0} is added {1}", success.first->Name,
success.second ? "successfully" : "unsuccessfully");
success = pets.insert(gcnew MyClass("N"));
Console::WriteLine("Second Time {0} is added {1}", success.first->Name,
success.second ? "successfully" : "unsuccessfully");
set<MyClass^>::reverse_iterator pet_ri;
for(pet_ri = pets.rbegin(); pet_ri != pets.rend(); pet_ri++)
System::Console::Write("{0} ", pet_ri->Name);

return (0);
}

</source>

← Предыдущая	Версия 15:31, 26 мая 2010
(нет различий)

Visual C++ .NET/Collections/set - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия