fix: clang-tidy fixes applied

search/median_search2.cpp

@@ -2,11 +2,15 @@
  * @file
  * @brief Given a linked list L[0,....,n] of n numbers, find the middle node.
  *
- * @details The technique utilized in this implementation is the ["Floyd's tortoise and hare"](https://en.wikipedia.org/wiki/Cycle_detection#Floyd's_tortoise_and_hare) approach.
- * This technique uses two pointers that iterate through the list at different 'speeds' in order to solve problems.
- * In this implementation, for every iteration the slow pointer advances one node while the fast pointer advances two nodes. 
- * The result of this is that since the fast pointer moves twice as fast as the slow pointer, when the fast pointer reaches the end of the list 
- * the slow pointer will be pointing to the middle node of the list. 
+ * @details The technique utilized in this implementation is the ["Floyd's
+ * tortoise and
+ * hare"](https://en.wikipedia.org/wiki/Cycle_detection#Floyd's_tortoise_and_hare)
+ * approach. This technique uses two pointers that iterate through the list at
+ * different 'speeds' in order to solve problems. In this implementation, for
+ * every iteration the slow pointer advances one node while the fast pointer
+ * advances two nodes. The result of this is that since the fast pointer moves
+ * twice as fast as the slow pointer, when the fast pointer reaches the end of
+ * the list the slow pointer will be pointing to the middle node of the list.
  *
  * Here are some example lists you can use to see how the algorithm works
  * A = [1,2,3,4,5]
@@ -17,8 +21,8 @@
  * @author [Benjamin Weiss](https://github.com/weiss-ben)
  */
 
-#include <iostream> /// for IO operations
 #include <cassert>   /// for assert
+#include <iostream>  /// for IO operations
 
 /**
  * Definition for singly-linked list.
@@ -27,8 +31,13 @@ struct ListNode {
     int val;                               ///< the value stored in the node
     ListNode* next;                        ///< pointer to the next node
     ListNode() : val(0), next(nullptr) {}  ///< default constructor
-    ListNode(int x) : val(x), next(nullptr) {}               ///< constructor with value for node->val provided
-    ListNode(int x, ListNode *next) : val(x), next(next) {}  ///< constructor with values provided for node->val and node->next
+    ListNode(int x)
+        : val(x),
+          next(nullptr) {}  ///< constructor with value for node->val provided
+    ListNode(int x, ListNode* next)
+        : val(x),
+          next(next) {
+    }  ///< constructor with values provided for node->val and node->next
 };
 
 /**
@@ -38,7 +47,8 @@ struct ListNode {
 namespace search {
 /**
  * @namespace median_search
- * @brief Functions for the Median Search algorithm implementation. Wkipedia link to algorithm: https://en.wikipedia.org/wiki/Median_search
+ * @brief Functions for the Median Search algorithm implementation. Wkipedia
+ * link to algorithm: https://en.wikipedia.org/wiki/Median_search
  */
 namespace median_search2 {
 /**
@@ -60,7 +70,6 @@ ListNode* middleNode(ListNode* head) {
         fastptr = fastptr->next->next;
     }
     return (fastptr->next) ? slowptr->next : slowptr;
-        
 }
 }  // namespace median_search2
 }  // namespace search
@@ -74,9 +83,8 @@ static void test() {
     head->val = 1;
 
     ListNode* temp1 = head;
-	for(int i = 1; i < 6; ++i)
-	{
-		ListNode* temp2 = new ListNode;
+    for (int i = 1; i < 6; ++i) {
+        auto temp2 = new ListNode;
         temp2->val = i;
 
         temp1->next = temp2;
@@ -88,8 +96,7 @@ static void test() {
     std::cout << "test case:1 passed\n";
 
     // Clean up
-	while(head)
-	{
+    while (head) {
         ListNode* t = head->next;
         delete head;
     }
@@ -98,8 +105,7 @@ static void test() {
     head->val = 1;
 
     temp1 = head;
-	for(int i = 1; i < 7; ++i)
-	{
+    for (int i = 1; i < 7; ++i) {
         ListNode* temp2 = new ListNode;
         temp2->val = i;
 
@@ -112,10 +118,10 @@ static void test() {
     std::cout << "test case:1 passed\n";
 
     // Clean up
-	while(head)
-	{
-		ListNode* t = head->next;
-		delete head;
+    while (head) {
+        ListNode* t = head;
+        head = head->next;
+        delete t;
     }
     std::cout << "test case:2 passed\n";
     std::cout << "--All tests passed--\n";
@@ -125,8 +131,7 @@ static void test() {
  * @brief Main function
  * @returns 0 on exit
  */
-int main()
-{
+int main() {
     test();  // run self-test implementations
     return 0;
 }