C++ string split and char split

#include <iostream>
#include <vector>
#include <string>

using namespace std;
string teststring = "This is a thiThisng here his ";
vector <string> testvector;
vector <string> testvector1;


vector <string> csplit(string input, char delimter) {
	vector <string> v;
	int stringlength = input.length();
	string buffer;
	for (int i = 0; i < stringlength; i++) {
		if (input[i] != delimter) {
			buffer += input[i];
		}
		else {
			v.push_back(buffer);
			buffer = "";
		}
	}
	v.push_back(buffer);
	buffer = "";

	return v;
}

vector <string> cstringsplit(string input, string delimeter) {
	int delimSize = delimeter.length();
	int inputSize = input.length();
	string buffer;
	vector <string> v;
	for (int i = 0; i < inputSize; i++) {
		if (input.substr(i, delimSize) != delimeter) {
			buffer += input[i];
		}
		else {
			v.push_back(buffer);
			buffer = "";
			i = i + delimSize - 1;

		}


	}
	v.push_back(buffer);
	buffer = "";
	return v;
}


void main() {
	/*testvector = csplit(teststring, ' ');
	for (int i = 0; i < testvector.size(); i++) {

		cout << testvector.at(i) <<endl;
	}
	*/

	cout << endl;
	testvector1 = cstringsplit(teststring, "This");
	for (int i = 0; i < testvector1.size(); i++) {

		cout << testvector1.at(i) << endl;
	}


	system("pause");
}