в 15:31, 26 мая 2010

2010-05-26T15:31:02Z

Admin: 1 версия

2010-05-26T12:05:01Z

1 версия

Новая страница

==Create map between Class and double value==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/map>
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)
{
map<MyClass^, double> myMap;
MyClass^ King = gcnew MyClass("A");
myMap.insert(myMap.end(), map<MyClass^, double>::make_value(gcnew MyClass("Z"), 3.0));
myMap.insert(map<MyClass^, double>::make_value(King, 10.0));
myMap.insert(map<MyClass^, double>::make_value(gcnew MyClass("B"),9.0));
return (0);
}

</source>

==Erase element from a map==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/map>
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)
{
map<MyClass^, double> myMap;
MyClass^ King = gcnew MyClass("A");
myMap.insert(myMap.end(), map<MyClass^, double>::make_value(gcnew MyClass("Z"), 3.0));
myMap.insert(map<MyClass^, double>::make_value(King, 10.0));
myMap.insert(map<MyClass^, double>::make_value(gcnew MyClass("B"),9.0));
map<MyClass^, double> copy;
map<MyClass^, double>::iterator myMap_e = myMap.end();
copy.insert(myMap.begin(), --myMap_e);
map<MyClass^, double>::iterator myMap_cb = copy.begin();
copy.erase(++myMap_cb);
copy.erase(gcnew MyClass("Lady"));
for each (KeyValuePair<MyClass^, double> ^kvp in (IDictionary<MyClass^, double>^)%copy)
System::Console::Write("{0} [{1}] ", kvp->Key->Name, kvp->Value);

return (0);
}

</source>

==Find a key-value pair in a map==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/map>
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)
{
map<MyClass^, double> myMap;
MyClass^ King = gcnew MyClass("A");
myMap.insert(myMap.end(), map<MyClass^, double>::make_value(gcnew MyClass("Z"), 3.0));
myMap.insert(map<MyClass^, double>::make_value(King, 10.0));
myMap.insert(map<MyClass^, double>::make_value(gcnew MyClass("B"),9.0));
map<MyClass^, double> copy;
map<MyClass^, double>::iterator myMap_e = myMap.end();
copy.insert(myMap.begin(), --myMap_e);
map<MyClass^, double>::iterator myMap_cb = copy.begin();
copy.erase(++myMap_cb);
copy.erase(gcnew MyClass("Lady"));
for each (KeyValuePair<MyClass^, double> ^kvp in (IDictionary<MyClass^, double>^)%copy)
System::Console::Write("{0} [{1}] ", kvp->Key->Name, kvp->Value);

Console::WriteLine("\n\nFound = {0}", copy.find(King)->first->Name);
map<MyClass^, double>::iterator Lady = copy.find(gcnew MyClass("Lady"));
Console::WriteLine("Did {0}Find = Lady", (Lady == copy.end()) ? "not " : "");

return (0);
}

</source>

==Insert element to a map==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/map>
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)
{
map<MyClass^, double> myMap;
MyClass^ King = gcnew MyClass("A");
myMap.insert(myMap.end(), map<MyClass^, double>::make_value(gcnew MyClass("Z"), 3.0));
myMap.insert(map<MyClass^, double>::make_value(King, 10.0));
myMap.insert(map<MyClass^, double>::make_value(gcnew MyClass("B"),9.0));
map<MyClass^, double> copy;
map<MyClass^, double>::iterator myMap_e = myMap.end();
copy.insert(myMap.begin(), --myMap_e);
map<MyClass^, double>::iterator myMap_cb = copy.begin();
copy.erase(++myMap_cb);
copy.erase(gcnew MyClass("Lady"));
for each (KeyValuePair<MyClass^, double> ^kvp in (IDictionary<MyClass^, double>^)%copy)
System::Console::Write("{0} [{1}] ", kvp->Key->Name, kvp->Value);

return (0);
}

</source>

==Insert myMap from .NET Dictionary<T>==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/map>
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)
{
map<MyClass^, double> myMap;
MyClass^ King = gcnew MyClass("A");
myMap.insert(myMap.end(), map<MyClass^, double>::make_value(gcnew MyClass("Z"), 3.0));
myMap.insert(map<MyClass^, double>::make_value(King, 10.0));
myMap.insert(map<MyClass^, double>::make_value(gcnew MyClass("B"),9.0));
Dictionary<MyClass^, double>^ moremyMap = gcnew Dictionary<MyClass^, double>();
moremyMap->Add(gcnew MyClass("Daisy"), 5);
moremyMap->Add(gcnew MyClass("Lady"), 7);
for each (KeyValuePair<MyClass^, double> ^kvp in moremyMap)
myMap.insert(map<MyClass^, double>::make_value(kvp->Key, kvp->Value));

return (0);
}

</source>

==Insert to a map==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/map>
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)
{
map<MyClass^, double> myMap;
MyClass^ King = gcnew MyClass("A");
myMap.insert(myMap.end(), map<MyClass^, double>::make_value(gcnew MyClass("Z"), 3.0));
myMap.insert(map<MyClass^, double>::make_value(King, 10.0));
myMap.insert(map<MyClass^, double>::make_value(gcnew MyClass("B"),9.0));
return (0);
}

</source>

==Is insert operation successful==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/map>
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)
{
map<MyClass^, double> myMap;
MyClass^ King = gcnew MyClass("A");
myMap.insert(myMap.end(), map<MyClass^, double>::make_value(gcnew MyClass("Z"), 3.0));
myMap.insert(map<MyClass^, double>::make_value(King, 10.0));
myMap.insert(map<MyClass^, double>::make_value(gcnew MyClass("B"),9.0));
map<MyClass^, double>::pair_iter_bool success;
success = myMap.insert(map<MyClass^, double>::make_value(gcnew MyClass("N"),0.1));
Console::WriteLine("First Time {0} age {1} is added {2}",
success.first->first->Name,
success.first->second,
success.second ? "successfully" : "unsuccessfully");
return (0);
}

</source>

==List of a Map==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/map>
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)
{
map<MyClass^, double> myMap;
MyClass^ King = gcnew MyClass("A");
myMap.insert(myMap.end(), map<MyClass^, double>::make_value(gcnew MyClass("Z"), 3.0));
myMap.insert(map<MyClass^, double>::make_value(King, 10.0));
myMap.insert(map<MyClass^, double>::make_value(gcnew MyClass("B"),9.0));
List<map<MyClass^, double>::value_type>^ evenmoremyMap = gcnew List<map<MyClass^, double>::value_type>();
evenmoremyMap->Add(map<MyClass^, double>::make_value(gcnew MyClass("AA"), 1));
evenmoremyMap->Add(map<MyClass^, double>::make_value(gcnew MyClass("AAA"), 2));
myMap.insert(evenmoremyMap);
IDictionary<MyClass^, double>^ myMap_IDict = %myMap;
for each (KeyValuePair<MyClass^, double> ^kvp in myMap_IDict)
System::Console::Write("{0} [{1}] ", kvp->Key->Name, kvp->Value);

return (0);
}

</source>

==Loop through map with IDictionary<> interface==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/map>
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)
{
map<MyClass^, double> myMap;
MyClass^ King = gcnew MyClass("A");
myMap.insert(myMap.end(), map<MyClass^, double>::make_value(gcnew MyClass("Z"), 3.0));
myMap.insert(map<MyClass^, double>::make_value(King, 10.0));
myMap.insert(map<MyClass^, double>::make_value(gcnew MyClass("B"),9.0));
Dictionary<MyClass^, double>^ moremyMap = gcnew Dictionary<MyClass^, double>();
moremyMap->Add(gcnew MyClass("Daisy"), 5);
moremyMap->Add(gcnew MyClass("Lady"), 7);
for each (KeyValuePair<MyClass^, double> ^kvp in moremyMap)
myMap.insert(map<MyClass^, double>::make_value(kvp->Key, kvp->Value));

return (0);
}

</source>

==Map reverse interator==

<source lang="csharp">
#include "stdafx.h"
#include <cliext/map>
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)
{
map<MyClass^, double> myMap;
MyClass^ King = gcnew MyClass("A");
myMap.insert(myMap.end(), map<MyClass^, double>::make_value(gcnew MyClass("Z"), 3.0));
myMap.insert(map<MyClass^, double>::make_value(King, 10.0));
myMap.insert(map<MyClass^, double>::make_value(gcnew MyClass("B"),9.0));
map<MyClass^, double>::pair_iter_bool success;
success = myMap.insert(map<MyClass^, double>::make_value(gcnew MyClass("N"),0.1));
Console::WriteLine("First Time {0} age {1} is added {2}",
success.first->first->Name,
success.first->second,
success.second ? "successfully" : "unsuccessfully");
map<MyClass^, double>::reverse_iterator pet_ri;
for(pet_ri = myMap.rbegin(); pet_ri != myMap.rend(); pet_ri++)
System::Console::Write("{0} [{1}] ", pet_ri->first->Name, pet_ri->second);

return (0);
}

</source>

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

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

в 15:31, 26 мая 2010

Admin: 1 версия