/* python.h - python version compatibility stuff
 *
 * Copyright (C) 2003-2010 Federico Di Gregorio <fog@debian.org>
 *
 * This file is part of psycopg.
 *
 * psycopg2 is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * In addition, as a special exception, the copyright holders give
 * permission to link this program with the OpenSSL library (or with
 * modified versions of OpenSSL that use the same license as OpenSSL),
 * and distribute linked combinations including the two.
 *
 * You must obey the GNU Lesser General Public License in all respects for
 * all of the code used other than OpenSSL.
 *
 * psycopg2 is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
 * License for more details.
 */

#ifndef PSYCOPG_PYTHON_H
#define PSYCOPG_PYTHON_H 1

#define PY_SSIZE_T_CLEAN
#include <Python.h>
#include <structmember.h>

#if PY_VERSION_HEX < 0x02040000
#  error "psycopg requires Python >= 2.4"
#endif

#if PY_VERSION_HEX < 0x02050000 && !defined(PY_SSIZE_T_MIN)
  typedef int Py_ssize_t;
  #define PY_SSIZE_T_MIN INT_MIN
  #define PY_SSIZE_T_MAX INT_MAX
  #define PY_FORMAT_SIZE_T ""

  #define readbufferproc getreadbufferproc
  #define writebufferproc getwritebufferproc
  #define segcountproc getsegcountproc
  #define charbufferproc getcharbufferproc

  #define CONV_CODE_PY_SSIZE_T "i"
#else
  #define CONV_CODE_PY_SSIZE_T "n"
#endif

/* FORMAT_CODE_PY_SSIZE_T is for Py_ssize_t: */
#define FORMAT_CODE_PY_SSIZE_T "%" PY_FORMAT_SIZE_T "d"

/* FORMAT_CODE_SIZE_T is for plain size_t, not for Py_ssize_t: */
#ifdef _MSC_VER
  /* For MSVC: */
  #define FORMAT_CODE_SIZE_T "%Iu"
#else
  /* C99 standard format code: */
  #define FORMAT_CODE_SIZE_T "%zu"
#endif

#endif /* !defined(PSYCOPG_PYTHON_H) */