2 files changed, 5 insertions, 5 deletions

diff --git a/list/include/list.h b/list/include/list.h
index 24291e1..aadcb88 100644
--- a/list/include/list.h
+++ b/list/include/list.h
@@ -23,7 +23,7 @@ static inline void* alloc(size_t size) {
 
 /// Create a new empty list.
 #define make_list(type) \
-  (type##_list) { 0 }
+  (type##_list) { nullptr }
 
 /// Delete the list.
 #define del_list(list)                                  \
@@ -32,7 +32,7 @@ static inline void* alloc(size_t size) {
     node                 = node->next;                  \
     free(cur);                                          \
   }                                                     \
-  list.head = 0;
+  list.head = nullptr;
 
 /// Prepend a value to the list.
 #define list_add(list, value)                               \
@@ -76,10 +76,10 @@ static inline void* alloc(size_t size) {
       node->next->prev = node->prev; \
     }                                \
     if (list.head == node) {         \
-      list.head = 0;                 \
+      list.head = nullptr;           \
     }                                \
     free(node);                      \
-    node = 0;                        \
+    node = nullptr;                  \
   }
 
 /// Iterate over all the items in the list.
diff --git a/list/test/list_test.c b/list/test/list_test.c
index 418e156..4ac5b5b 100644
--- a/list/test/list_test.c
+++ b/list/test/list_test.c
@@ -52,7 +52,7 @@ TEST_CASE(list_remove_by_value) {
 TEST_CASE(list_remove_by_address) {
   const int N = 3;
 
-  int* ptrs[3] = {0};
+  int* ptrs[3] = {nullptr};
 
   int_list list = make_list(int);
   for (int i = 0; i < N; ++i) {