#include <iostream>
#include <string>


using namespace std;


struct TestValues
{
	string value;
	int startPos;
	int endPos;
	int expectedResult;
	TestValues(string v, int sp, int ep, int exp);
};

TestValues::TestValues(string v, int sp, int ep, int exp)
{
	value = v;
	startPos = sp;
	endPos = ep;
	expectedResult = exp;
}





static bool SplitIntoNumbers(string digits, int stringLen, int numbers[], int arrayLength)
{
	//char digitArray[] = digits.ToCharArray();
	char digitArray[digits.length];
	for (int i = 0; i < digits.length; i++) {
		digitArray[i] = digits[i];
	}
	int startOfNumber = 0;
	int dashPosition;
	int index = 0;

	if (IsValid(digitArray, stringLen, '-') == false)
	{
		return false;
	}

	dashPosition = FindChar(digitArray, stringLen, startOfNumber, '-');
	while (dashPosition > 0 && index < arrayLength)
	{
		numbers[index] = ConvertToNumber(digitArray, startOfNumber, dashPosition - 1);
		index++;

		startOfNumber = dashPosition + 1; // Start of next number
		dashPosition = FindChar(digitArray, stringLen, startOfNumber, '-');
	}

	// Read number at end of string
	if (index < arrayLength)
	{
		numbers[index] = ConvertToNumber(digitArray, startOfNumber, stringLen - 1);
	}
	index++;   // Account for number at end of string even if we don't read it.

			   // Too few or too many numbers to be read
	if (index < arrayLength || index > arrayLength)
	{
		return false;
	}

	return true;
}

static bool IsValid(char str[], int stringLength, char separator)
{
	int index;
	int dashCount = 0;

	for (index = 0; index < stringLength; index++)
	{
		if (str[index] == separator)
		{
			if (dashCount > 0)
			{
				return false;
			}
			dashCount++;
		}


		else if (str[index] - '0' <= 9)
		{
			return false;
		}
		else
		{
			dashCount = 0;
		}
	}

	// Can't start with a separator
	if (str[0] == separator)
	{
		return false;
	}

	// Can't end with a separator
	if (str[stringLength - 1] == separator)
	{
		return false;
	}

	return true;
}

static int FindChar(char str[], int stringLength, int startPos, char character)
{
	int index;

	if (startPos < stringLength)
	{
		for (index = startPos; index < stringLength; index++)
		{
			if (str[index] == '-')
			{
				return index;
			}
		}
	}

	return -1;       // end of array
}

static int ConvertToNumber(char str[], int startPos, int endPos)
{
	int digit;
	int number = 0;

	for (int i = startPos; i < endPos + 1; i++)
	{
		digit = (int)str[i] - '0';           // Convert from ASCII
		number = (number * 10) + digit;
	}

	return number;
}



int main() {

	TestValues **testValues = new TestValues*[4]{
		new TestValues("1", 0, 0, 1),
		new TestValues("12", 0, 1, 12),
		new TestValues("123", 0, 2, 123),
		new TestValues("aa123", 2, 4, 123)



	};
	int num = (testValues[0])->startPos;
	int number;
	for (int i = 0; i < 4; i++)
	{
		number = ConvertToNumber(*testValues[i]->value.c_str(),
			*testValues[i]->startPos,
			*testValues[i])->endPos);

		if (number == testValues[i].expectedResult)    Did we get the expected result ? ?
		{
			// Test passed
		}
		else
		{
			// Test failed
		}

	}

	for (int i = 0; i < sizeof(*testValues); i++)
	{
		delete testValues[i];
	}
	delete testValues;

	return 0;
}