Check return value when peeking linked lists

2020-06-04 08:48:45 -04:00
parent 60b4042681
commit 6b8435d5f6
4 changed files with 8 additions and 4 deletions
--- a/cpp/datastructs/singlelist/singlelist.cpp
+++ b/cpp/datastructs/singlelist/singlelist.cpp
@@ -168,7 +168,8 @@ int SingleList::peek() const
  if (!isEmpty())
    std::cout << "[" << head->data << "] is at the top of our list\n";
  else std::cout << "Nothing to peek, our list is empty...\n";
-  return head->data;
+  // If the list has data we return it, otherwise we return the smallest possible int (error)
+  return (!isEmpty()) ? head->data : INT32_MIN;
 }

 /** print