WROTE IN AIRPLANE: Checked edge case where the number is zero

numeric_base.cpp

@@ -26,10 +26,15 @@ unsigned int to_decimal(std::string num, int from_base) {
 std::string from_decimal(unsigned int num, int to_base) {
 	std::string return_val;
 	int val = 0;
-	while (num > 0) {
-		val = num % to_base;
-		return_val.push_back(possible_chars[val]);
-		num /= to_base;
+	/* Handle the special case of num being zero: In this case, the result is also zero */
+	if (num == 0) {
+		return_val = "0";
+	} else {
+		while (num > 0) {
+			val = num % to_base;
+			return_val.push_back(possible_chars[val]);
+			num /= to_base;
+		}
 	}
 	
 	/* Reverse the string, since we started from the right */