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

numeric_base.cpp

@@ -26,12 +26,17 @@ 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) {
+	/* Handle the special case of num being zero: In this case, the result is also zero */
-		val = num % to_base;
+	if (num == 0) {
-		return_val.push_back(possible_chars[val]);
+		return_val = "0";
-		num /= to_base;
+	} 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 */
 	std::reverse(return_val.begin(), return_val.end());