Programming Forums > Application Development > C++

King · Feb 1st, 2007, 6:43 PM

I just have a few questions about templates. I will just use the following class as an example to use for my questions:

template <class T>
class MyClass
{
public:
	MyClass() {};
	~MyClass() {};
	void MyFunction(const T &);
};

template<class T>
void MyClass<T>::MyFunction(const T &value)
{
	// do something
}

Usually when I write a class I would put the implementation of the functions in a separate .cpp file, but when I do this I get compile errors. But if I put the implementation of the function in the same file as the class definition it works fine, why is that?
My second question is if I have to keep the implementation of my functions in the same file, would there be a point to still define it outside if the class definition like I have shown above, or should I just define it inside the class?
Thanks.

Feb 1st, 2007, 6:43 PM	#1
King Professional Programmer Join Date: Jan 2006 Location: Ontario, Canada Posts: 377 Rep Power: 0	Template Questions I just have a few questions about templates. I will just use the following class as an example to use for my questions: (Toggle Plain Text) template <class T> class MyClass { public: MyClass() {}; ~MyClass() {}; void MyFunction(const T &); }; template<class T> void MyClass<T>::MyFunction(const T &value) { // do something } template <class T> class MyClass { public: MyClass() {}; ~MyClass() {}; void MyFunction(const T &); }; template<class T> void MyClass<T>::MyFunction(const T &value) { // do something } Usually when I write a class I would put the implementation of the functions in a separate .cpp file, but when I do this I get compile errors. But if I put the implementation of the function in the same file as the class definition it works fine, why is that? My second question is if I have to keep the implementation of my functions in the same file, would there be a point to still define it outside if the class definition like I have shown above, or should I just define it inside the class? Thanks. __________________ I am Addicted to Linux!

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Programming Forums > Application Development > C++

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