C++ Code Explaination

int pivSubCompare(char *strInput1, int intSP1, int intEP1, char *strInput2, int intSP2, int intEP2)
{
	int   intLoop1, intLoop2;
	int   intMax = 0;
	int   intCnt, intNS1, intNS2;
	char *p1, *p2;

	intNS1 = intNS2 = -1;
	intCnt = 0;

	if((intSP1 > intEP1) || (intSP2 > intEP2) || (intSP1 < 0) || (intSP2 < 0))
		return 0;

	for(intLoop1 = intSP1; intLoop1 < intEP1; intLoop1++)
	{
		for(intLoop2 = intSP2; intLoop2 < intEP2; intLoop2++)
		{
			p1 = strInput1 + intLoop1;
			p2 = strInput2 + intLoop2;
			intCnt = 0;

			while((*p1 == *p2) && (*p1 != '\0') && (*p2 != '\0'))
			{
				intCnt++;

				if(intCnt > intMax)
				{
					intNS1 = intLoop1;
					intNS2 = intLoop2;
					intMax = intCnt;

					if(intMax == (intEP2 - intSP2)) return intMax;
				}

				p1++;
				p2++;
			}
		}
	}

	intMax += pivSubCompare(strInput1, intNS1 + intMax, intEP1, strInput2, intNS2 + intMax, intEP2);
	intMax += pivSubCompare(strInput1, intSP1, intNS1 - 1, strInput2, intSP2, intNS2 - 1);

	return intMax;
}