в 15:31, 26 мая 2010

2010-05-26T15:31:02Z

Admin: 1 версия

2010-05-26T12:05:04Z

1 версия

Новая страница

==Adding one list to another list==

<source lang="csharp">
#include "stdafx.h"
using namespace System;
using namespace System::Collections::Generic;
ref class MyClass{
public:
String^ Value;
MyClass(String^ in);
virtual String^ ToString() override;
static bool hasX(MyClass^ val);
static void formatString(MyClass^ val);
};
MyClass::MyClass(String^ in) : Value(in) {}
String^ MyClass::ToString() { return Value; }
bool MyClass::hasX(MyClass^ val)
{
return val->Value->ToUpper()->IndexOf("X") > 0;
}
void MyClass::formatString(MyClass^ val)
{
val->Value = String::Format("** {0} **", val->Value);
}
void main(){
List<MyClass^>^ alist = gcnew List<MyClass^>();
alist->Add(gcnew MyClass("One"));
alist->Add(gcnew MyClass("-"));
alist[1] = gcnew MyClass("Three");
alist->Insert(1, gcnew MyClass("Two"));
List<MyClass^>^ morenums = gcnew List<MyClass^>();
morenums->Add(gcnew MyClass("Four"));
morenums->Add(gcnew MyClass("Five"));

alist->AddRange(morenums);
}

</source>

==Add to list with push_front==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/list>
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->CompareTo(rhs->Name) > 0);
}
bool operator==(const MyClass^ rhs){
return (Name->Equals(rhs->Name));
}
};
int main(array<System::String ^> ^args)
{
list<MyClass^> pets;
pets.push_front(gcnew MyClass("a"));
pets.push_front(gcnew MyClass("b"));
pets.push_front(gcnew MyClass("c"));
pets.push_front(gcnew MyClass("d"));

return (0);
}

</source>

==Add your class to a generic List==

<source lang="csharp">
#include "stdafx.h"
using namespace System;
using namespace System::Collections::Generic;
ref class MyClass{
public:
String^ Value;
MyClass(String^ in);
virtual String^ ToString() override;
static bool hasX(MyClass^ val);
static void formatString(MyClass^ val);
};
MyClass::MyClass(String^ in) : Value(in) {}
String^ MyClass::ToString() { return Value; }
bool MyClass::hasX(MyClass^ val)
{
return val->Value->ToUpper()->IndexOf("X") > 0;
}
void MyClass::formatString(MyClass^ val)
{
val->Value = String::Format("** {0} **", val->Value);
}
void main(){
List<MyClass^>^ alist = gcnew List<MyClass^>();
alist->Add(gcnew MyClass("One"));
alist->Add(gcnew MyClass("-"));
alist[1] = gcnew MyClass("Three");

}

</source>

==For each loop and list==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/list>
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->CompareTo(rhs->Name) > 0);
}
bool operator==(const MyClass^ rhs){
return (Name->Equals(rhs->Name));
}
};
int main(array<System::String ^> ^args)
{
list<MyClass^> pets;
pets.push_front(gcnew MyClass("A"));
pets.push_front(gcnew MyClass("B"));
pets.push_front(gcnew MyClass("C"));
pets.push_front(gcnew MyClass("D"));

ICollection<MyClass^>^ genericIList = %pets;
genericIList->Add(gcnew MyClass("E"));
pets.sort();
for each (MyClass^ pet in genericIList)
System::Console::Write("{0} ", pet->Name);
return (0);
}

</source>

==For loop and element count==

<source lang="csharp">
#include "stdafx.h"
using namespace System;
using namespace System::Collections::Generic;
ref class MyClass{
public:
String^ Value;
MyClass(String^ in);
virtual String^ ToString() override;
static bool hasX(MyClass^ val);
static void formatString(MyClass^ val);
};
MyClass::MyClass(String^ in) : Value(in) {}
String^ MyClass::ToString() { return Value; }
bool MyClass::hasX(MyClass^ val)
{
return val->Value->ToUpper()->IndexOf("X") > 0;
}
void MyClass::formatString(MyClass^ val)
{
val->Value = String::Format("** {0} **", val->Value);
}
void main(){
List<MyClass^>^ alist = gcnew List<MyClass^>();
alist->Add(gcnew MyClass("One"));
alist->Add(gcnew MyClass("-"));
alist[1] = gcnew MyClass("Three");
for (int i = 0; i < alist->Count; i++)
Console::WriteLine("{0} ", alist[i]);
}

</source>

==Get the first element in a list==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/list>
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->CompareTo(rhs->Name) > 0);
}
bool operator==(const MyClass^ rhs){
return (Name->Equals(rhs->Name));
}
};
int main(array<System::String ^> ^args)
{
list<MyClass^> pets;
pets.push_front(gcnew MyClass("a"));
pets.push_front(gcnew MyClass("b"));
pets.push_front(gcnew MyClass("c"));
pets.push_front(gcnew MyClass("d"));

list<MyClass^>::iterator pet_i = pets.begin();
pets.insert(++pet_i, gcnew MyClass("Jack"));
for(pet_i = pets.begin(); pet_i != pets.end(); pet_i++)
System::Console::Write("{0} ", pet_i->Name);
return (0);
}

</source>

==Insert element to a list==

<source lang="csharp">
#include "stdafx.h"
using namespace System;
using namespace System::Collections::Generic;
ref class MyClass{
public:
String^ Value;
MyClass(String^ in);
virtual String^ ToString() override;
static bool hasX(MyClass^ val);
static void formatString(MyClass^ val);
};
MyClass::MyClass(String^ in) : Value(in) {}
String^ MyClass::ToString() { return Value; }
bool MyClass::hasX(MyClass^ val)
{
return val->Value->ToUpper()->IndexOf("X") > 0;
}
void MyClass::formatString(MyClass^ val)
{
val->Value = String::Format("** {0} **", val->Value);
}
void main(){
List<MyClass^>^ alist = gcnew List<MyClass^>();
alist->Add(gcnew MyClass("One"));
alist->Add(gcnew MyClass("-"));
alist[1] = gcnew MyClass("Three");
alist->Insert(1, gcnew MyClass("Two"));
}

</source>

==Insert from .NET generic List<T>==

<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"));

List<MyClass^>^ morepets = gcnew List<MyClass^>();
morepets->Add(gcnew MyClass("D"));
morepets->Add(gcnew MyClass("AA"));
pets.insert(morepets);
for each (MyClass^ pet in pets)
System::Console::Write("{0} ", pet->Name);
return (0);
}

</source>

==Insert to a list==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/list>
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->CompareTo(rhs->Name) > 0);
}
bool operator==(const MyClass^ rhs){
return (Name->Equals(rhs->Name));
}
};
int main(array<System::String ^> ^args)
{
list<MyClass^> pets;
pets.push_front(gcnew MyClass("a"));
pets.push_front(gcnew MyClass("b"));
pets.push_front(gcnew MyClass("c"));
pets.push_front(gcnew MyClass("d"));

list<MyClass^>::iterator pet_i = pets.begin();
pets.insert(++pet_i, gcnew MyClass("Jack"));
for(pet_i = pets.begin(); pet_i != pets.end(); pet_i++)
System::Console::Write("{0} ", pet_i->Name);
return (0);
}

</source>

==List.FindAll with predicate==

<source lang="csharp">
#include "stdafx.h"
using namespace System;
using namespace System::Collections::Generic;
ref class MyClass{
public:
String^ Value;
MyClass(String^ in);
virtual String^ ToString() override;
static bool hasX(MyClass^ val);
static void formatString(MyClass^ val);
};
MyClass::MyClass(String^ in) : Value(in) {}
String^ MyClass::ToString() { return Value; }
bool MyClass::hasX(MyClass^ val)
{
return val->Value->ToUpper()->IndexOf("X") > 0;
}
void MyClass::formatString(MyClass^ val)
{
val->Value = String::Format("** {0} **", val->Value);
}
void main(){
List<MyClass^>^ alist = gcnew List<MyClass^>();
alist->Add(gcnew MyClass("One"));
alist->Add(gcnew MyClass("-"));
alist[1] = gcnew MyClass("Three");
for (int i = 0; i < alist->Count; i++)
Console::WriteLine("{0} ", alist[i]);
List<MyClass^>^ x = alist->FindAll(gcnew Predicate<MyClass^>(MyClass::hasX));
}

</source>

==List.ForEach and Action==

<source lang="csharp">
#include "stdafx.h"
using namespace System;
using namespace System::Collections::Generic;
ref class MyClass{
public:
String^ Value;
MyClass(String^ in);
virtual String^ ToString() override;
static bool hasX(MyClass^ val);
static void formatString(MyClass^ val);
};
MyClass::MyClass(String^ in) : Value(in) {}
String^ MyClass::ToString() { return Value; }
bool MyClass::hasX(MyClass^ val)
{
return val->Value->ToUpper()->IndexOf("X") > 0;
}
void MyClass::formatString(MyClass^ val)
{
val->Value = String::Format("** {0} **", val->Value);
}
void main(){
List<MyClass^>^ alist = gcnew List<MyClass^>();
alist->Add(gcnew MyClass("One"));
alist->Add(gcnew MyClass("-"));
alist[1] = gcnew MyClass("Three");
for (int i = 0; i < alist->Count; i++)
Console::WriteLine("{0} ", alist[i]);

alist->ForEach(gcnew Action<MyClass^>(MyClass::formatString));

for each(MyClass^ str in alist)
Console::WriteLine("{0} ", str);
}

</source>

==Loop through a list with for loop==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/list>
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->CompareTo(rhs->Name) > 0);
}
bool operator==(const MyClass^ rhs){
return (Name->Equals(rhs->Name));
}
};
int main(array<System::String ^> ^args)
{
list<MyClass^> pets;
pets.push_front(gcnew MyClass("a"));
pets.push_front(gcnew MyClass("b"));
pets.push_front(gcnew MyClass("c"));
pets.push_front(gcnew MyClass("d"));

list<MyClass^>::iterator pet_i = pets.begin();
pets.insert(++pet_i, gcnew MyClass("Jack"));
for(pet_i = pets.begin(); pet_i != pets.end(); pet_i++)
System::Console::Write("{0} ", pet_i->Name);
return (0);
}

</source>

==Merge lists by greater-functor==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/list>
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->CompareTo(rhs->Name) > 0);
}
bool operator==(const MyClass^ rhs){
return (Name->Equals(rhs->Name));
}
};
ref class MyGreaterThanFunctor{
public:
bool operator()(MyClass^ a, MyClass^ b)
{
return a > b;
}
};
int main(array<System::String ^> ^args)
{
list<MyClass^> pets;
pets.push_front(gcnew MyClass("A"));
pets.push_front(gcnew MyClass("B"));
pets.push_front(gcnew MyClass("C"));
pets.push_front(gcnew MyClass("D"));

list<MyClass^> puppies;
puppies.push_front(gcnew MyClass("E"));
puppies.push_front(gcnew MyClass("F"));
pets.sort(gcnew MyGreaterThanFunctor());
puppies.sort(greater<MyClass^>());
pets.merge(puppies, greater<MyClass^>());
for each (MyClass^ pet in pets)
System::Console::Write("{0} ", pet->Name);
return (0);
}

</source>

==Pointer for list element==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/list>
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->CompareTo(rhs->Name) > 0);
}
bool operator==(const MyClass^ rhs){
return (Name->Equals(rhs->Name));
}
};
int main(array<System::String ^> ^args)
{
list<MyClass^> pets;
pets.push_front(gcnew MyClass("A"));
pets.push_front(gcnew MyClass("B"));
pets.push_front(gcnew MyClass("C"));
pets.push_front(gcnew MyClass("D"));
list<MyClass^> myList;
list<MyClass^>::iterator pet_ir = pets.begin();
int randMyClassNo = (gcnew Random())->Next(pets.size());
for (int i = 0; i < randMyClassNo; i++)
pet_ir++;
myList.splice(myList.begin(), pets, pet_ir);
for each (MyClass^ pet in pets)
System::Console::Write("{0} ", pet->Name);
for each (MyClass^ pet in myList)
System::Console::Write("{0} ", pet->Name);
return (0);
}

</source>

==Splice a list==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/list>
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->CompareTo(rhs->Name) > 0);
}
bool operator==(const MyClass^ rhs){
return (Name->Equals(rhs->Name));
}
};
int main(array<System::String ^> ^args)
{
list<MyClass^> pets;
pets.push_front(gcnew MyClass("A"));
pets.push_front(gcnew MyClass("B"));
pets.push_front(gcnew MyClass("C"));
pets.push_front(gcnew MyClass("D"));
list<MyClass^> myList;
list<MyClass^>::iterator pet_ir = pets.begin();
int randMyClassNo = (gcnew Random())->Next(pets.size());
for (int i = 0; i < randMyClassNo; i++)
pet_ir++;
myList.splice(myList.begin(), pets, pet_ir);
for each (MyClass^ pet in pets)
System::Console::Write("{0} ", pet->Name);
for each (MyClass^ pet in myList)
System::Console::Write("{0} ", pet->Name);
return (0);
}

</source>

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

в 15:31, 26 мая 2010

Admin: 1 версия