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-rw-r--r--src/apk_version.h26
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diff --git a/src/apk_version.h b/src/apk_version.h
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+/* apk_version.h - Alpine Package Keeper (APK)
+ *
+ * Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
+ * Copyright (C) 2008 Timo Teräs <timo.teras@iki.fi>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation. See http://www.gnu.org/ for details.
+ */
+
+#ifndef APK_VERSION_H
+#define APK_VERSION_H
+
+#include "apk_blob.h"
+
+#define APK_VERSION_LESS -1
+#define APK_VERSION_EQUAL 0
+#define APK_VERSION_GREATER 1
+
+#define APK_VERSION_RESULT_MASK(r) (1 << ((r)+1))
+
+int apk_version_validate(apk_blob_t ver);
+int apk_version_compare(apk_blob_t a, apk_blob_t b);
+
+#endif