Visual Studio 2005体验泛型编程

Figure 2 Template and Generic Stack Declaration
C++/CLI Template Stack Declaration
#include ＜cliext/vector＞
using namespace cliext;
template ＜class elemType＞
ref class tStack
{
// the CLI vector is a reference class …
vector＜elemType＞ ^m_stack;
int top;
public:
tStack();
elemType pop();
void push( elemType et );
...
};
C++/CLI Generic Stack Declaration
using namespace System::Collections::Generic
generic ＜class elemType＞
public ref class gStack {
List＜elemType＞ ^m_stack;
int top;
public:
gStack();
elemType pop();
void push( elemType et );
...
};

Figure 3 Instantiating the Template Stack
void demo_template_Stack()
{
// an int value type argument...
tStack＜int＞^ is = gcnew tStack＜int＞( 10 );
for ( int ix = 0; ix ＜ 10; ix++ )
is-＞push( ix*2 );
int elem_cnt = is-＞size();
for ( int ix = 0; ix ＜ elem_cnt; ++ix )
Console::WriteLine( "({0}) {1}", ix+1, is-＞pop());
// a String^ reference type argument...
tStack＜String^＞ ^ss = gcnew tStack＜String^＞( 10 );
ss-＞push( "Pooh" ); ss-＞push( "Piglet" );
ss-＞push( "Rabbit" ); ss-＞push( "Eeyore" );
elem_cnt = ss-＞size();
for ( int ix = 0; ix ＜ elem_cnt; ++ix )
Console::WriteLine( "({0}) {1}", ix+1, ss-＞pop());
}

Figure 4 Instantiating the Generic Stack
void demo_generic_Stack()
{
// an int value type argument...
gStack＜int＞^ is = gcnew gStack＜int＞( 10 );
for ( int ix = 0; ix ＜ 10; ix++ )
is-＞push( ix*2 );
int elem_cnt = is-＞size();
for ( int ix = 0; ix ＜ elem_cnt; ++ix )
Console::WriteLine( "({0}) {1}", ix+1, is-＞pop());
// a String^ reference type argument...
gStack＜String^＞ ^ss = gcnew gStack＜String^＞( 10 );
ss-＞push( "Pooh" ); ss-＞push( "Piglet" );
ss-＞push( "Rabbit" ); ss-＞push( "Eeyore" );
elem_cnt = ss-＞size();
for ( int ix = 0; ix ＜ elem_cnt; ++ix )
Console::WriteLine( "({0}) {1}", ix+1, ss-＞pop());
}