From: Jerome Benoit <jerome.benoit@sap.com>
Date: Fri, 3 Mar 2017 19:29:20 +0000 (+0100)
Subject: TP 9 exo2: Better handling of special cases in list_delete()
X-Git-Url: https://git.piment-noir.org/?a=commitdiff_plain;h=abe54438847c1a491145a7719e43d19950732569;p=TD_C.git

TP 9 exo2: Better handling of special cases in list_delete()

Signed-off-by: Jerome Benoit <jerome.benoit@sap.com>
---

diff --git a/TP_9/exo2/clist.c b/TP_9/exo2/clist.c
index edc2964..9ebb348 100644
--- a/TP_9/exo2/clist.c
+++ b/TP_9/exo2/clist.c
@@ -57,7 +57,9 @@ link_t* list_delete(link_t* head, unsigned index) {
     link_t* head_next = NULL;
     link_t* head_ret = NULL;
    
-    if (index == 0) {
+    if (head == NULL) {
+        return NULL;
+    } else if (index == 0) {
         head_next = head->next;
         free(head);
         head = head_next;