granicus.if.org Git - postgresql/blob - contrib/isn/isn.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * isn.h
   4  *        PostgreSQL type definitions for ISNs (ISBN, ISMN, ISSN, EAN13, UPC)
   5  *
   6  * Author:      German Mendez Bravo (Kronuz)
   7  * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
   8  *
   9  * IDENTIFICATION
  10  *        contrib/isn/isn.h
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14
  15 #ifndef ISN_H
  16 #define ISN_H
  17
  18 #include "fmgr.h"
  19
  20 #undef ISN_DEBUG
  21 #define ISN_WEAK_MODE
  22
  23 /*
  24  *      uint64 is the internal storage format for ISNs.
  25  */
  26 typedef uint64 ean13;
  27
  28 #define EAN13_FORMAT UINT64_FORMAT
  29
  30 #define PG_GETARG_EAN13(n) PG_GETARG_INT64(n)
  31 #define PG_RETURN_EAN13(x) PG_RETURN_INT64(x)
  32
  33 extern void initialize(void);
  34
  35 #endif                                                  /* ISN_H */