From 6c948532d2799bcc172053cac504c4aa5f016bba Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Thu, 15 May 2014 17:55:45 +0200
Subject: libihash: add hurd_ihash_value_valid

* libihash/ihash.h (hurd_ihash_value_valid): New function.
* libihash/ihash.c (index_empty): Use hurd_ihash_value_valid.
---
 libihash/ihash.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'libihash/ihash.h')

diff --git a/libihash/ihash.h b/libihash/ihash.h
index 849a55a2..128027a0 100644
--- a/libihash/ihash.h
+++ b/libihash/ihash.h
@@ -41,6 +41,13 @@ typedef void *hurd_ihash_value_t;
 #define _HURD_IHASH_EMPTY	((hurd_ihash_value_t) 0)
 #define _HURD_IHASH_DELETED	((hurd_ihash_value_t) -1)
 
+/* Test if VALUE is valid.  */
+static inline int
+hurd_ihash_value_valid (hurd_ihash_value_t value)
+{
+  return value != _HURD_IHASH_EMPTY && value != _HURD_IHASH_DELETED;
+}
+
 /* The type of integer we want to use for the keys.  */
 typedef uintptr_t hurd_ihash_key_t;
 
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