/*
* Copyright (c) 2017 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup libc
* @{
*/
/** @file
*/
#ifndef _LIBC_LIMITS_H_
#define _LIBC_LIMITS_H_
#ifdef __GNUC__
/*
* Default to compiler's version of limits.h, so we don't have to care about
* language version and whatnot.
*/
#include_next <limits.h>
#else
/* HelenOS requires 8-bit char and two's complement arithmetic. */
#define CHAR_BIT 8
#define SCHAR_MAX 0x7f
#define SCHAR_MIN (-SCHAR_MAX - 1)
#define SHRT_MAX 0x7fff
#define SHRT_MIN (-SHRT_MAX - 1)
#define INT_MAX 0x7fffffff
#define INT_MIN (-INT_MAX - 1)
#define LLONG_MAX 0x7fffffffffffffffll
#define LLONG_MIN (-LLONG_MAX - 1)
#define UCHAR_MAX 0xff
#define USHRT_MAX 0xffff
#define UINT_MAX 0xffffffffu
#define ULLONG_MAX 0xffffffffffffffffull
#if __STDC_VERSION__ >= 201112L
_Static_assert(((char)-1) < 0, "char should be signed");
#endif
#define CHAR_MAX SCHAR_MAX
#define CHAR_MIN SCHAR_MIN
#ifdef __32_BITS__
#define LONG_MAX 0x7fffffffl
#define LONG_MIN (-LONG_MAX - 1)
#define ULONG_MAX 0xfffffffful
#endif
#ifdef __64_BITS__
#define LONG_MAX 0x7fffffffffffffffl
#define LONG_MIN (-LONG_MAX - 1)
#define ULONG_MAX 0xfffffffffffffffful
#endif
#endif /* !defined(__GNUC__) */
#undef MB_LEN_MAX
#define MB_LEN_MAX 4
#ifdef _HELENOS_SOURCE
#define UCHAR_MIN 0
#define USHRT_MIN 0
#define UINT_MIN (0u)
#define ULONG_MIN (0ul)
#define ULLONG_MIN (0ull)
#define SSIZE_MIN INTPTR_MIN
#define UINT8_MIN 0
#define UINT16_MIN 0
#define UINT32_MIN 0
#define UINT64_MIN 0
#endif
#if defined(_HELENOS_SOURCE) || defined(_POSIX_SOURCE) || \
defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#define SSIZE_MAX INTPTR_MAX
#define NAME_MAX 255
#endif
/* GCC's <limits.h> doesn't define these for C++11, even though it should. */
#if __cplusplus >= 201103L
#ifndef LLONG_MAX
#define LLONG_MAX 0x7fffffffffffffffll
#endif
#ifndef LLONG_MIN
#define LLONG_MIN (-LLONG_MAX - 1)
#endif
#ifndef ULLONG_MAX
#define ULLONG_MAX 0xffffffffffffffffull
#endif
#endif
#endif
/** @}
*/