Updated 17 to throw exception

Headers/Problems/Problem17.hpp

@@ -41,6 +41,7 @@ private:
 
 	//Functions
 	std::string makeWordFromNum(int number);	//This function makes a word out of the number passed into it
+	std::string wordHelper(int num);	//This function helps makeWordFromNum() by returning the words for the numbers 1-9
 	uint64_t countLetters(std::string str);	//This counts the number of letters in the string that is passed in (ignoring numbers and punctuation)
 public:
 	//Constructor

src/Problems/Problem17.cpp

@@ -34,7 +34,7 @@ int Problem17::START_NUM = 1;
 int Problem17::STOP_NUM = 1000;
 
 //This function makes a word out of the number passed into it
-std::string Problem17::makeWord(int num){
+std::string Problem17::makeWordFromNum(int num){
 	int currentDivider = 1000;
 	int currentNum;
 	bool teen = false;
@@ -154,8 +154,8 @@ std::string Problem17::wordHelper(int num){
 		case 3: tempString += "three"; break;
 		case 2: tempString += "two"; break;
 		case 1: tempString += "one"; break;
-		//TODO: Throw an exception
-		default: tempString += "ERROR"; break;
+		case 0: tempString += "zero"; break;
+		default: throw Unsolved("Number passed to wordHelper was either > 10 or < 0"); break;
 	}
 	return tempString;
 }
@@ -187,7 +187,7 @@ void Problem17::solve(){
 
 	//Step through every element in nums and get the word representations of the numbers
 	for(int cnt = START_NUM;cnt <= STOP_NUM;++cnt){
-		std::string words = makeWord(cnt);	//Get the words of each number in turn
+		std::string words = makeWordFromNum(cnt);	//Get the words of each number in turn
 		letterCount += countLetters(words);	//Add the number of letters to the running tally
 	}