how cai i count the number of occur

[5679]

how cai i count the number of occurences of a substring in a larger string?

 

[obislavu]

Here is a sample function:

int CountOcc(string s, string sub)
{
	int iCount = 0;
	int at =0;
	while (true)
	{
	int iPos = s.IndexOf(sub,at);
	if (iPos == -1)
		break;
		iCount++;
		at=iPos+sub.Length;
	}
	return iCount;
}
string s ="onetwo for onesixonetentwo one";
int count=CountOcc(s,"one"); // returns 4

-obislavu-