X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Fdeque%2Fdeque.h;h=ffd6c2a5ced59273cce4d5cdd974a4c0298dc9e2;hb=3022d16de40870c66c891a4aa75280e194ddf89f;hp=1e5b4e8eb1167f4f9aedd1acfdc558ea2217dbdf;hpb=4eb5f52c94d6c32f1b8347ee599906d60239e0d4;p=ccan

diff --git a/ccan/deque/deque.h b/ccan/deque/deque.h
index 1e5b4e8e..ffd6c2a5 100644
--- a/ccan/deque/deque.h
+++ b/ccan/deque/deque.h
@@ -1,7 +1,13 @@
-#ifndef _DEQUE_H
-#define _DEQUE_H
-
+/* Licensed under Apache License v2.0 - see LICENSE file for details */
+#ifndef CCAN_DEQUE_H
+#define CCAN_DEQUE_H
+#include "config.h"
+#if !HAVE_STATEMENT_EXPR
+#error "This code needs compiler support for statement expressions. Try using gcc or clang."
+#endif
 #include <assert.h>
+#include <stdlib.h>
+#include <string.h>
 
 /**
  * struct deq - deque metadata
@@ -87,7 +93,7 @@ int deq_resize_(struct deq *q, unsigned n);
  *	//later
  *	deq_free(z);
  *
- * Returns: pointer on success, NULL on error
+ * Returns: 0 on success, -1 on error
  */
 #define deq_new(w, min, shrink) ({			\
 	w = malloc(sizeof(*w));				\