fpending, obstack, strerror-override: use pure+const function attrs

[gnulib.git] / lib / obstack.h

diff --git a/lib/obstack.h b/lib/obstack.h
index 7cf98ed..da45427 100644 (file)
--- a/lib/obstack.h
+++ b/lib/obstack.h
@@ -183,7 +183,7 @@ extern int _obstack_begin (struct obstack *, int, int,
 extern int _obstack_begin_1 (struct obstack *, int, int,
                              void *(*) (void *, long),
                              void (*) (void *, void *), void *);
-extern int _obstack_memory_used (struct obstack *);
+extern int _obstack_memory_used (struct obstack *) _GL_ATTRIBUTE_PURE;
 
 /* The default name of the function for freeing a chunk is 'obstack_free',
    but gnulib users can override this by defining '__obstack_free'.  */