caseproto_ref: Append compiler directive WARN_UNUSED_RESULT

[pspp] / src / data / caseproto.h

diff --git a/src/data/caseproto.h b/src/data/caseproto.h
index b0f45c418c47aae8017b0469a5307cff6b9cd7f6..a8468ddeed3b5c5b1978e83897eb956d7ccd5bef 100644 (file)
--- a/src/data/caseproto.h
+++ b/src/data/caseproto.h
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 2009 Free Software Foundation, Inc.
+   Copyright (C) 2009, 2011 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -21,9 +21,10 @@
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdlib.h>
-#include <data/value.h>
-#include <libpspp/cast.h>
-#include <libpspp/compiler.h>
+
+#include "data/value.h"
+#include "libpspp/cast.h"
+#include "libpspp/compiler.h"
 
 /* Case prototype.
 
@@ -79,8 +80,8 @@ struct pool;
 
 /* Creation and destruction. */
 struct caseproto *caseproto_create (void) MALLOC_LIKE;
-static inline struct caseproto *caseproto_ref (const struct caseproto *);
-struct caseproto *caseproto_ref_pool (const struct caseproto *, struct pool *);
+static inline struct caseproto *caseproto_ref (const struct caseproto *) WARN_UNUSED_RESULT;
+struct caseproto *caseproto_ref_pool (const struct caseproto *, struct pool *) WARN_UNUSED_RESULT;
 static inline void caseproto_unref (struct caseproto *);
 
 /* Inspecting stored widths.  */