/**
* slibc — Yet another C library
* Copyright © 2015, 2016 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>
/* TODO [u]int(|_least|_fast)$N_t are compiler-dependent and may even
* be compiler-flag-dependent. Some CPP-magic is required to
* figure their exact underlaying intrinsic type and existence. */
/* Ensure that dependencies for type are defined. */
#if defined(__NEED_imaxdiv_t) && !defined(__NEED_intmax_t)
# define __NEED_intmax_t
#endif
/**
* Returns the maximum value of an unsigned integer type,
* in that type.
*/
#ifndef __MAX_OF
# define __MAX_OF(type) \
(((type)1) << sizeof(type))
#endif
/**
* An integer type for pointers, but not wider than `long int`.
*/
#ifndef __LIMITED_PTR_INT
# if __PTR_BIT == __CHAR_BIT
# define __LIMITED_PTR_INT char
# elif __PTR_BIT == __SHORT_BIT
# define __LIMITED_PTR_INT short int
# elif __PTR_BIT == __INT_BIT
# define __LIMITED_PTR_INT int
# else
# define __LIMITED_PTR_INT long int
# endif
#endif
/**
* Signed integer type of the result of subtracting two pointers.
* May not be greater than the width of type `long int`.
*
* @since Always.
*/
#if defined(__NEED_ptrdiff_t) && !defined(__DEFINED_ptrdiff_t)
# define __DEFINED_ptrdiff_t
typedef signed __LIMITED_PTR_INT ptrdiff_t;
#endif
/**
* Unsigned version of `ptrdiff_t`
*
* @since Always.
*/
#if defined(__NEED_uptrdiff_t) && !defined(__DEFINED_uptrdiff_t)
# define __DEFINED_uptrdiff_t
typedef unsigned __LIMITED_PTR_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.
*
* @since Always.
*/
# if defined(__NEED_wchar_t) && !defined(__DEFINED_wchar_t)
# define __DEFINED_wchar_t
# if __WCHAR_BIT == 8
typedef __WCHAR_SIGNNESS __INT8 wchar_t
# elif __WCHAR_BIT == 16
typedef __WCHAR_SIGNNESS __INT16 wchar_t
# elif __WCHAR_BIT == 32
typedef __WCHAR_SIGNNESS __INT32 wchar_t
# elif __WCHAR_BIT == 64
typedef __WCHAR_SIGNNESS __INT64 wchar_t
# endif
__warning("'wchar_t' is not guaranteed to be defined as expected, use 'int32_t'.");
# endif
# ifndef __WCHAR_MAX
# if __WCHAR_BIT == 8
# define __WCHAR_MAX INT8_MAX
# elif __WCHAR_BIT == 16
# define __WCHAR_MAX INT16_MAX
# elif __WCHAR_BIT == 32
# define __WCHAR_MAX INT32_MAX
# elif __WCHAR_BIT == 64
# define __WCHAR_MAX INT64_MAX
# endif
# 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.
*
* @since Always.
*/
# 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
* width of type `long int`.
*
* @since Always.
*/
#if defined(__NEED_size_t) && !defined(__DEFINED_size_t)
# define __DEFINED_size_t
typedef unsigned __LIMITED_PTR_INT size_t;
#endif
/**
* Signed version of `size_t`
*
* @since Always.
*/
#if defined(__NEED_ssize_t) && !defined(__DEFINED_ssize_t)
# define __DEFINED_ssize_t
typedef signed __LIMITED_PTR_INT ssize_t;
#endif
/**
* A type, of unspecified construct, whose alignment requirement
* is at least as strict as that of every scalar type.
*
* @since Always.
*/
#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.
*
* @since Always.
*/
#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.
*
* @since Always.
*/
#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.
*
* @since Always.
*/
#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.
*
* @since Always.
*/
#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.
*
* @since Always.
*/
#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.
*
* @since Always.
*/
#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.
*
* @since Always.
*/
#if defined(__NEED_intmax_t) && !defined(__DEFINED_intmax_t)
# define __DEFINED_intmax_t
typedef signed __INT64 intmax_t;
#endif
#ifndef __INTMAX_MAX
# define __INTMAX_MAX INT64_MAX
#endif
/**
* The widest unsigned integer type available.
*
* @since Always.
*/
#if defined(__NEED_uintmax_t) && !defined(__DEFINED_uintmax_t)
# define __DEFINED_uintmax_t
typedef unsigned __INT64 uintmax_t;
#endif
#ifndef __UINTMAX_MAX
# 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.
*
* @since Always.
*/
#if defined(__NEED_sig_atomic_t) && !defined(__DEFINED_sig_atomic_t)
# define __DEFINED_sig_atomic_t
typedef int sig_atomic_t;
#endif
#ifndef __SIG_ATOMIC_BIT
# define __SIG_ATOMIC_BIT __INT_BIT
#endif
/**
* A structure than holds both the quotient and
* the remainer in an integer division, of
* `int` type.
*
* @since Always.
*/
#if defined(__NEED_div_t) && !defined(__DEFINED_div_t)
# define __DEFINED_div_t
typedef struct {
/**
* Quotient.
*/
int quot;
/**
* Remainder.
*/
int rem;
} div_t;
#endif
/**
* A structure than holds both the quotient and
* the remainer in an integer division, of
* `long int` type.
*
* @since Always.
*/
#if defined(__NEED_ldiv_t) && !defined(__DEFINED_ldiv_t)
# define __DEFINED_ldiv_t
typedef struct {
/**
* Quotient.
*/
long int quot;
/**
* Remainder.
*/
long int rem;
} ldiv_t;
#endif
/**
* A structure than holds both the quotient and
* the remainer in an integer division, of
* `long long int` type.
*
* @since Always.
*/
#if defined(__NEED_lldiv_t) && !defined(__DEFINED_lldiv_t)
# define __DEFINED_lldiv_t
typedef struct {
/**
* Quotient.
*/
long long int quot;
/**
* Remainder.
*/
long long int rem;
} lldiv_t;
#endif
/**
* A structure than holds both the quotient and
* the remainer in an integer division, of
* `intmax_t` type.
*
* @since Always.
*/
#if defined(__NEED_imaxdiv_t) && !defined(__DEFINED_imaxdiv_t)
# define __DEFINED_imaxdiv_t
typedef struct {
/**
* Quotient.
*/
intmax_t quot;
/**
* Remainder.
*/
intmax_t rem;
} imaxdiv_t;
#endif
/**
* Locale datatype.
*
* @since Always.
*/
#if defined(__NEED_locale_t) && !defined(__DEFINED_locale_t)
# define __DEFINED_locale_t
typedef int locale_t; /* TODO not implemented */
#endif
#ifndef __INTMAX_MAX
# define __INTMAX_MAX INT64_MAX
#endif
/**
* State of variadic argument-reading.
*
* @since Always.
*/
#define __ONLY_va_list
# include <stdarg.h>
#undef __ONLY_va_list
/**
* Datatype for file permissions and file type.
*
* @since Always.
*/
#if defined(__NEED_mode_t) && !defined(__DEFINED_mode_t)
# define __DEFINED_mode_t
typedef unsigned int mode_t;
#endif
/**
* Datatype for process identifiers.
*
* @since Always.
*/
#if defined(__NEED_pid_t) && !defined(__DEFINED_pid_t)
# define __DEFINED_pid_t
typedef signed int pid_t;
#endif
/**
* Datatype for user identifiers.
*
* @since Always.
*/
#if defined(__NEED_uid_t) && !defined(__DEFINED_uid_t)
# define __DEFINED_uid_t
typedef unsigned int uid_t;
#endif
/**
* Datatype for group identifiers.
*
* @since Always.
*/
#if defined(__NEED_gid_t) && !defined(__DEFINED_gid_t)
# define __DEFINED_gid_t
typedef unsigned int gid_t;
#endif
/**
* Datatype for microseconds.
* (The name should be 'µseconds', but we are limited
* to ASCII and 'u' looks similar to 'µ'.)
*
* @since Always.
*/
#if defined(__NEED_useconds_t) && !defined(__DEFINED_useconds_t)
# define __DEFINED_useconds_t
typedef signed long useconds_t;
#endif
/**
* Datatype for file offsets.
*
* @since Always.
*/
#if defined(__NEED_off_t) && !defined(__DEFINED_off_t)
# define __DEFINED_off_t
typedef signed __INT64 off_t;
#endif
/**
* Datatype for inode identifiers, the number identifying
* a file on a filesystem.
* ('inode' is probably a contraction of 'index node'.)
*
* @since Always.
*/
#if defined(__NEED_ino_t) && !defined(__DEFINED_ino_t)
# define __DEFINED_ino_t
typedef unsigned __INT64 ino_t;
#endif
/**
* Datatype for device identifiers.
*
* @since Always.
*/
#if defined(__NEED_dev_t) && !defined(__DEFINED_dev_t)
# define __DEFINED_dev_t
typedef unsigned __INT64 dev_t;
#endif
/**
* Datatype for filesystem block counts.
*
* @since Always.
*/
#if defined(__NEED_fsblkcnt_t) && !defined(__DEFINED_fsblkcnt_t)
# define __DEFINED_fsblkcnt_t
typedef unsigned __INT64 fsblkcnt_t;
#endif
/**
* Datatype for filesystem file counts.
*
* @since Always.
*/
#if defined(__NEED_fsfilcnt_t) && !defined(__DEFINED_fsfilcnt_t)
# define __DEFINED_fsfilcnt_t
typedef unsigned __INT64 fsfilcnt_t;
#endif
/**
* Datatype for block sizes.
*
* @since Always.
*/
#if defined(__NEED_blksize_t) && !defined(__DEFINED_blksize_t)
# define __DEFINED_blksize_t
typedef signed __LIMITED_PTR_INT blksize_t;
#endif
/**
* Datatype for block counts.
*
* @since Always.
*/
#if defined(__NEED_blkcnt_t) && !defined(__DEFINED_blkcnt_t)
# define __DEFINED_blkcnt_t
typedef signed __INT64 blkcnt_t;
#endif
/* pid_t and suseconds_t may not exceed long int */
