C + + template (2) static variable __c++

Each of the different types of template functions whose static variables are not shared

Examples are as follows:

Template<typename t>
void useofstatic (const t& A) {
	static int i = 0;
	cout << ++i << endl;
}


int main () {
	
	useofstatic<int>);
	Useofstatic<int> (a);

	Useofstatic<double> (2.5);

	System ("PAUSE");
	return 0;
}

The output results are as follows:

1

2

1

A static variable for a class template is similar to a function template:

Template similar to
template<class t>
class Templateclassuse {
private:
	T x;
Public:
	static int testi;
	Templateclassuse ()
	{
		cout << ++testi << endl;
	}
	
;

Template<class t>
int templateclassuse<t>::testi = 0;   Initialization of static objects in a class

Use:

	Templateclassuse<int> A;
	Templateclassuse<int> b;

	Templateclassuse<char> C;
	Templateclassuse<char> D;
	Templateclassuse<char> e;

Output:

1

2

3

4

5

Conclusion: Different types of template classes or template functions do not share static variables