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/*
This file is part of libmicrohttpd
Copyright (C) 2015 Karlson2k (Evgeny Grin)
This library 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 2.1 of the License, or (at your option) any later version.
This library 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.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file microhttpd/mhd_limits.h
* @brief limits values definitions
* @author Karlson2k (Evgeny Grin)
*/
#ifndef MHD_LIMITS_H
#define MHD_LIMITS_H
#include "platform.h"
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif /* HAVE_LIMITS_H */
#define MHD_UNSIGNED_TYPE_MAX_(type) ((type)-1)
/* Assume 8 bits per byte, no padding bits. */
#define MHD_SIGNED_TYPE_MAX_(type) \
( (type)((( ((type)1) << (sizeof(type)*8 - 2)) - 1)*2 + 1) )
#define MHD_TYPE_IS_SIGNED_(type) (((type)0)>((type)-1))
#ifndef UINT_MAX
#ifdef __UINT_MAX__
#define UINT_MAX __UINT_MAX__
#else /* ! __UINT_MAX__ */
#define UINT_MAX MHD_UNSIGNED_TYPE_MAX_(unsigned int)
#endif /* ! __UINT_MAX__ */
#endif /* !UINT_MAX */
#ifndef LONG_MAX
#ifdef __LONG_MAX__
#define LONG_MAX __LONG_MAX__
#else /* ! __LONG_MAX__ */
#define LONG_MAX MHD_SIGNED_TYPE_MAX(long)
#endif /* ! __LONG_MAX__ */
#endif /* !OFF_T_MAX */
#ifndef ULLONG_MAX
#define ULLONG_MAX MHD_UNSIGNED_TYPE_MAX_(MHD_UNSIGNED_LONG_LONG)
#endif /* !ULLONG_MAX */
#ifndef INT32_MAX
#ifdef __INT32_MAX__
#define INT32_MAX __INT32_MAX__
#else /* ! __INT32_MAX__ */
#define INT32_MAX ((int32_t)0x7FFFFFFF)
#endif /* ! __INT32_MAX__ */
#endif /* !INT32_MAX */
#ifndef UINT32_MAX
#ifdef __UINT32_MAX__
#define UINT32_MAX __UINT32_MAX__
#else /* ! __UINT32_MAX__ */
#define UINT32_MAX ((int32_t)0xFFFFFFFF)
#endif /* ! __UINT32_MAX__ */
#endif /* !UNT32_MAX */
#ifndef UINT64_MAX
#ifdef __UINT64_MAX__
#define UINT64_MAX __UINT64_MAX__
#else /* ! __UINT64_MAX__ */
#define UINT64_MAX ((uint64_t)0xFFFFFFFFFFFFFFFF)
#endif /* ! __UINT64_MAX__ */
#endif /* !INT32_MAX */
#ifndef SIZE_MAX
#ifdef __SIZE_MAX__
#define SIZE_MAX __SIZE_MAX__
#else /* ! __SIZE_MAX__ */
#define SIZE_MAX MHD_UNSIGNED_TYPE_MAX_(size_t)
#endif /* ! __SIZE_MAX__ */
#endif /* !SIZE_MAX */
#ifndef OFF_T_MAX
#define OFF_T_MAX MHD_SIGNED_TYPE_MAX_(off_t)
#endif /* !OFF_T_MAX */
#if defined(_LARGEFILE64_SOURCE) && !defined(OFF64_T_MAX)
#define OFF64_T_MAX MHD_SIGNED_TYPE_MAX_(uint64_t)
#endif /* _LARGEFILE64_SOURCE && !OFF64_T_MAX */
#ifndef TIME_T_MAX
#define TIME_T_MAX ((time_t) \
( MHD_TYPE_IS_SIGNED_(time_t) ? \
MHD_SIGNED_TYPE_MAX_(time_t) : \
MHD_UNSIGNED_TYPE_MAX_(time_t)))
#endif /* !TIME_T_MAX */
#ifndef TIMEVAL_TV_SEC_MAX
#ifndef _WIN32
#define TIMEVAL_TV_SEC_MAX TIME_T_MAX
#else /* _WIN32 */
#define TIMEVAL_TV_SEC_MAX LONG_MAX
#endif /* _WIN32 */
#endif /* !TIMEVAL_TV_SEC_MAX */
#endif /* MHD_LIMITS_H */
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