From 2049ce09ed30f4e1bae40e0828c57cfd7c6a1c2d Mon Sep 17 00:00:00 2001
From: "carlosgp143@gmail.com" <carlosgp143@gmail.com>
Date: Thu, 31 May 2018 10:11:56 +0200
Subject: [PATCH] Changed return from int to bool

---
 os/lib/list.c                                               | 6 +++---
 os/lib/list.h                                               | 4 +++-
 .../code-data-structures/test-data-structures.c             | 2 +-
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/os/lib/list.c b/os/lib/list.c
index f584ebb3e..9eaf1945e 100644
--- a/os/lib/list.c
+++ b/os/lib/list.c
@@ -334,16 +334,16 @@ list_item_next(void *item)
  *			   0 if the list does not contain the item, and 1 if the item
  *			   is present in the list.
  */
-int
+bool
 list_contains(list_t list, void *item)
 {
   struct list *l;
   for(l = *list; l != NULL; l = l->next) {
     if(item == l) {
-    	return 1;
+    	return true;
     }
   }
-  return 0;
+  return false;
 }
 /*---------------------------------------------------------------------------*/
 /** @} */
diff --git a/os/lib/list.h b/os/lib/list.h
index e4c948665..af0136435 100644
--- a/os/lib/list.h
+++ b/os/lib/list.h
@@ -66,6 +66,8 @@
 #ifndef LIST_H_
 #define LIST_H_
 
+#include <stdbool.h>
+
 #define LIST_CONCAT2(s1, s2) s1##s2
 #define LIST_CONCAT(s1, s2) LIST_CONCAT2(s1, s2)
 
@@ -151,7 +153,7 @@ void   list_insert(list_t list, void *previtem, void *newitem);
 
 void * list_item_next(void *item);
 
-int list_contains(list_t list, void *item);
+bool list_contains(list_t list, void *item);
 
 #endif /* LIST_H_ */
 
diff --git a/tests/07-simulation-base/code-data-structures/test-data-structures.c b/tests/07-simulation-base/code-data-structures/test-data-structures.c
index 0bdc8e6c4..da3833dc3 100644
--- a/tests/07-simulation-base/code-data-structures/test-data-structures.c
+++ b/tests/07-simulation-base/code-data-structures/test-data-structures.c
@@ -167,7 +167,7 @@ UNIT_TEST(test_list)
   UNIT_TEST_ASSERT(list_contains(lst, &elements[3]));
   int i;
   for(i=4; i<ELEMENT_COUNT; i++) {
-    UNIT_TEST_ASSERT(list_contains(lst, &elements[i]) == 0);
+    UNIT_TEST_ASSERT(!list_contains(lst, &elements[i]));
   }
   /*
    * Remove the tail