isn.h

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/*-------------------------------------------------------------------------
 *
 * isn.h
 *    PostgreSQL type definitions for ISNs (ISBN, ISMN, ISSN, EAN13, UPC)
 *
 * Author:  German Mendez Bravo (Kronuz)
 * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
 *
 * IDENTIFICATION
 *    contrib/isn/isn.h
 *
 *-------------------------------------------------------------------------
 */
 
#ifndef ISN_H
#define ISN_H
 
#include "fmgr.h"
 
#undef ISN_DEBUG
 
/*
 *  uint64 is the internal storage format for ISNs.
 */
typedef uint64 ean13;
 
#define PG_GETARG_EAN13(n) PG_GETARG_INT64(n)
#define PG_RETURN_EAN13(x) PG_RETURN_INT64(x)
 
extern void initialize(void);
 
#endif                          /* ISN_H */