/**
* slibc — Yet another C library
* Copyright © 2015 Mattias Andrée (maandree@member.fsf.org)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* That's right. No inclusion-guard; we want multiple
* headers to be able to define types by including this
* header without the need of keeping in mind which
* order headers are included. */
#include <slibc/features.h>
#include <bits/intconf.h>
/**
* Returns the maximum value of an unsigned integer type,
* in that type.
*/
#ifndef __MAX_OF
# define __MAX_OF(type) \
(((type)1) << sizeof(type))
#endif
/**
* Signed integer type of the result of subtracting two pointers.
* May not be greater than the with of type long.
*/
#if defined(__NEED_ptrdiff_t) && !defined(__DEFINED_ptrdiff_t)
# define __DEFINED_ptrdiff_t
typedef signed long int ptrdiff_t;
#endif
/**
* Unsigned version of `ptrdiff_t`
*/
#if defined(__NEED_uptrdiff_t) && !defined(__DEFINED_uptrdiff_t)
# define __DEFINED_uptrdiff_t
typedef unsigned long int uptrdiff_t;
#endif
#ifndef __PORTABLE
/**
* Integer type which can represent any character.
* May not be greater than the with of type long.
*
* Unicode originally had an, inclusive upper limit
* of U+FFFF. UTF-8 however had 31-bits (U+7FFFFFFF).
* Unicode is now limited to 0x10FFFF.
*
* 32 bits should be sufficient (long is at least 32
* bits), but why limit further than POSIX does.
*
* `wchar_t` is not safe for data serialisation/marshalling;
* it is implementation specific and may depend on the
* libc implementation, the version of the libc implementation,
* and the microarchitecture.
*/
# if defined(__NEED_wchar_t) && !defined(__DEFINED_wchar_t)
# define __DEFINED_wchar_t
typedef long int wchar_t
__warning("'wchar_t' is not guaranteed to be defined as expected, use 'int32_t'.");
# define __WCHAR_MAX INTPTR_MAX
# endif
/**
* Variant of `wchar_t` that can hold the value of `WEOF`.
*
* `wint_t` is not safe for data serialisation/marshalling;
* it is implementation specific and may depend on the
* libc implementation, the version of the libc implementation,
* and the microarchitecture.
*/
# if defined(__NEED_wint_t) && !defined(__DEFINED_wint_t)
# define __DEFINED_wint_t
typedef wchar_t wint_t
__warning("'wint_t' is not guaranteed to be defined as expected, use 'int32_t'.");
# endif
#endif
/**
* Unsigned integer type of the result of the
* `sizeof` operator. May not be greater than the
* with of type long.
*/
#if defined(__NEED_size_t) && !defined(__DEFINED_size_t)
# define __DEFINED_size_t
typedef unsigned long int size_t;
#endif
/**
* Signed version of `size_t`
*/
#if defined(__NEED_ssize_t) && !defined(__DEFINED_ssize_t)
# define __DEFINED_ssize_t
typedef signed long int ssize_t;
#endif
/**
* A type, of unspecified construct, whose alignment requirement
* is at least as strict as that of every scalar type.
*/
#if defined(__NEED_max_align_t) && !defined(__DEFINED_max_align_t)
# define __DEFINED_max_align_t
typedef struct
{
long long int __lli __attribute__((__aligned__(__alignof__(long long int))));
long double __ld __attribute__((__aligned__(__alignof__(long double))));
} max_align_t;
#endif
/**
* Signed exact-width integer types.
*
* These types are guaranteed to use two's complement.
*/
#if defined(__NEED_intN_t) && !defined(__DEFINED_intN_t)
# define __DEFINED_intN_t
typedef signed __INT8 int8_t;
typedef signed __INT16 int16_t;
typedef signed __INT32 int32_t;
typedef signed __INT64 int64_t;
#endif
/**
* Unsigned exact-width integer types.
*/
#if defined(__NEED_uintN_t) && !defined(__DEFINED_uintN_t)
# define __DEFINED_uintN_t
typedef unsigned __INT8 uint8_t;
typedef unsigned __INT16 uint16_t;
typedef unsigned __INT32 uint32_t;
typedef unsigned __INT64 uint64_t;
#endif
/**
* Signed integer types with guaranteed minimum length
* with otherwise minimal length.
*
* `int_least8_t`, `int_least16_t`, `int_least32_t`, and
* `int_least64_t` are guaranteed to be defined.
*/
#if defined(__NEED_int_leastN_t) && !defined(__DEFINED_int_leastN_t)
# define __DEFINED_int_leastN_t
typedef signed __INT8 int_least8_t;
typedef signed __INT16 int_least16_t;
typedef signed __INT32 int_least32_t;
typedef signed __INT64 int_least64_t;
#endif
/**
* Unsigned integer types with guaranteed minimum length
* with otherwise minimal length.
*
* `uint_least8_t`, `uint_least16_t`, `uint_least32_t`, and
* `uint_least64_t` are guaranteed to be defined.
*/
#if defined(__NEED_uint_leastN_t) && !defined(__DEFINED_uint_leastN_t)
# define __DEFINED_uint_leastN_t
typedef unsigned __INT8 uint_least8_t;
typedef unsigned __INT16 uint_least16_t;
typedef unsigned __INT32 uint_least32_t;
typedef unsigned __INT64 uint_least64_t;
#endif
/**
* Signed integer types with guaranteed minimum length
* and are thought to be the fastest to in most use-cases.
*
* `int_fast8_t`, `int_fast16_t`, `int_fast32_t`, and
* `int_fast64_t` are guaranteed to be defined.
* It is howevr strongly discouraged to uses this types
* in serialised/marshalled data, as they may depend
* on the C library the program is compiled against
* and the version of that library.
*/
#if defined(__NEED_int_fastN_t) && !defined(__DEFINED_int_fastN_t)
# define __DEFINED_int_fastN_t
typedef signed __INT_FAST8 int_fast8_t;
typedef signed __INT_FAST16 int_fast16_t;
typedef signed __INT_FAST32 int_fast32_t;
typedef signed __INT_FAST64 int_fast64_t;
#endif
/**
* Ubsigned integer types with guaranteed minimum length
* and are thought to be the fastest to in most use-cases.
*
* `uint_fast8_t`, `uint_fast16_t`, `uint_fast32_t`, and
* `uint_fast64_t` are guaranteed to be defined.
* It is howevr strongly discouraged to uses this types
* in serialised/marshalled data, as they may depend
* on the C library the program is compiled against
* and the version of that library.
*/
#if defined(__NEED_uint_fastN_t) && !defined(__DEFINED_uint_fastN_t)
# define __DEFINED_uint_fastN_t
typedef unsigned __INT_FAST8 uint_fast8_t;
typedef unsigned __INT_FAST16 uint_fast16_t;
typedef unsigned __INT_FAST32 uint_fast32_t;
typedef unsigned __INT_FAST64 uint_fast64_t;
#endif
/**
* The widest signed integer type available.
*/
#if defined(__NEED_intmax_t) && !defined(__DEFINED_intmax_t)
# define __DEFINED_intmax_t
typedef signed __INT64 intmax_t;
# define __INTMAX_MAX INT64_MAX
#endif
/**
* The widest unsigned integer type available.
*/
#if defined(__NEED_uintmax_t) && !defined(__DEFINED_uintmax_t)
# define __DEFINED_uintmax_t
typedef unsigned __INT64 uintmax_t;
# define __UINTMAX_MAX UINT64_MAX
#endif
/**
* A integer type over which operations are atomic.
* It may be defined as volatile, slibc does not do
* this however because it is good practice to do
* so explcitily when using the `sig_atomic_t` type.
*/
#if defined(__NEED_sig_atomic_t) && !defined(__DEFINED_sig_atomic_t)
# define __DEFINED_sig_atomic_t
typedef int sig_atomic_t;
# define __SIG_ATOMIC_BIT __INT_BIT
#endif
