18 lines
316 B
C++
18 lines
316 B
C++
|
//: generics/InstantiateGenericType.cpp
|
||
|
|
// C++, not Java!
|
||
|
|
|
||
|
|
template<class T> class Foo {
|
||
|
|
T x; // Create a field of type T
|
||
|
|
T* y; // Pointer to T
|
||
|
|
public:
|
||
|
|
// Initialize the pointer:
|
||
|
|
Foo() { y = new T(); }
|
||
|
|
};
|
||
|
|
|
||
|
|
class Bar {};
|
||
|
|
|
||
|
|
int main() {
|
||
|
|
Foo<Bar> fb;
|
||
|
|
Foo<int> fi; // ... and it works with primitives
|
||
|
|
} ///:~
|