Consuming Generics (C++/CLI)
Generics authored in one .NET language may be used in other .NET languages. Unlike templates, a generic in a compiled assembly still remains generic. Thus, one may instantiate the generic type in a different assembly and even in a different language than the assembly in which the generic type was defined.
Remarks
For more information, see:
Example
Description
This example shows a generic class defined in C#.
Code
// consuming_generics_from_other_NET_languages.cs
// compile with: /target:library
// a C# program
public class CircularList<ItemType> {
class ListNode {
public ItemType m_item;
public ListNode next;
public ListNode(ItemType item) {
m_item = item;
}
}
ListNode first, last;
public CircularList() {}
public void Add(ItemType item) {
ListNode newnode = new ListNode(item);
if (first == null) {
first = last = newnode;
first.next = newnode;
last.next = first;
}
else {
newnode.next = first;
first = newnode;
last.next = first;
}
}
public void Remove(ItemType item) {
ListNode iter = first;
if (first.m_item.Equals( item )) {
first =
last.next = first.next;
}
for ( ; iter != last ; iter = iter.next )
if (iter.next.m_item.Equals( item )) {
if (iter.next == last)
last = iter;
iter.next = iter.next.next;
return;
}
}
public void PrintAll() {
ListNode iter = first;
do {
System.Console.WriteLine( iter.m_item );
iter = iter.next;
} while (iter != last);
}
}
Example
Description
This example consumes the assembly authored in C#.
Code
// consuming_generics_from_other_NET_languages_2.cpp
// compile with: /clr
#using <consuming_generics_from_other_NET_languages.dll>
using namespace System;
class NativeClass {};
ref class MgdClass {};
int main() {
CircularList<int>^ circ1 = gcnew CircularList<int>();
CircularList<MgdClass^>^ circ2 = gcnew CircularList<MgdClass^>();
for (int i = 0 ; i < 100 ; i += 10)
circ1->Add(i);
circ1->Remove(50);
circ1->PrintAll();
}
Output
90
80
70
60
40
30
20
10