libcnary: return removed/detached index in node_list_remove/node_detach

2 files changed, 7 insertions, 4 deletions

diff --git a/libcnary/node.c b/libcnary/node.c
index 264c78e..0a8f414 100644
--- a/libcnary/node.c
+++ b/libcnary/node.c
@@ -95,11 +95,12 @@ int node_attach(node_t* parent, node_t* child) {
 }
 
 int node_detach(node_t* parent, node_t* child) {
-        if (!parent || !child) return 0;
-        if (node_list_remove(parent->children, child) == 0) {
+        if (!parent || !child) return -1;
+        int index = node_list_remove(parent->children, child);
+        if (index >= 0) {
                 parent->count--;
         }
-        return 0;
+        return index;
 }
 
 int node_insert(node_t* parent, unsigned int index, node_t* child)
diff --git a/libcnary/node_list.c b/libcnary/node_list.c
index 78f450e..5b291e7 100644
--- a/libcnary/node_list.c
+++ b/libcnary/node_list.c
@@ -124,6 +124,7 @@ int node_list_remove(node_list_t* list, node_t* node) {
         if (!list || !node) return -1;
         if (list->count == 0) return -1;
 
+        int index = 0;
         node_t* n;
         for (n = list->begin; n; n = n->next) {
                 if (node == n) {
@@ -144,8 +145,9 @@ int node_list_remove(node_list_t* list, node_t* node) {
                                 list->begin = newnode;
                         }
                         list->count--;
-                        return 0;
+                        return index;
                 }
+                index++;
         }       
         return -1;
 }