Fix __warn_unused_result__, add more of it and fix the resulting warnings.

[meshlink] / src / submesh.h

diff --git a/src/submesh.h b/src/submesh.h
index d6122d8fd10f3bf8aedcbef7da26fe1aaf5eaf2a..15720aab604747d4b9d22bc392b47710145d91f1 100644 (file)
--- a/src/submesh.h
+++ b/src/submesh.h
@@ -33,9 +33,9 @@ typedef struct submesh_t {
 
 extern void init_submeshes(struct meshlink_handle *mesh);
 extern void exit_submeshes(struct meshlink_handle *mesh);
-extern submesh_t *create_submesh(struct meshlink_handle *mesh, const char *);
-extern submesh_t *lookup_submesh(struct meshlink_handle *mesh, const char *);
-extern submesh_t *lookup_or_create_submesh(struct meshlink_handle *mesh, const char *);
-extern bool submesh_allows_node(const submesh_t *submesh, const struct node_t *node);
+extern submesh_t *create_submesh(struct meshlink_handle *mesh, const char *) __attribute__((__warn_unused_result__));
+extern submesh_t *lookup_submesh(struct meshlink_handle *mesh, const char *) __attribute__((__warn_unused_result__));
+extern submesh_t *lookup_or_create_submesh(struct meshlink_handle *mesh, const char *) __attribute__((__warn_unused_result__));
+extern bool submesh_allows_node(const submesh_t *submesh, const struct node_t *node) __attribute__((__warn_unused_result__));
 
 #endif