#ifndef __PDCLIB_INT_H #define __PDCLIB_INT_H __PDCLIB_INT_H /* PDCLib internal integer logic <_PDCLIB_int.h> This file is part of the Public Domain C Library (PDCLib). Permission is granted to use, modify, and / or redistribute at will. */ /* -------------------------------------------------------------------------- */ /* You should not have to edit anything in this file; if you DO have to, it */ /* would be considered a bug / missing feature: notify the author(s). */ /* -------------------------------------------------------------------------- */ #include <_PDCLIB_config.h> #include <_PDCLIB_aux.h> /* null pointer constant */ #define _PDCLIB_NULL 0 /* -------------------------------------------------------------------------- */ /* Limits of native datatypes */ /* -------------------------------------------------------------------------- */ /* The definition of minimum limits for unsigned datatypes is done because */ /* later on we will "construct" limits for other abstract types: */ /* USHRT -> _PDCLIB_ + USHRT + _MIN -> _PDCLIB_USHRT_MIN -> 0 */ /* INT -> _PDCLIB_ + INT + _MIN -> _PDCLIB_INT_MIN -> ... you get the idea. */ /* -------------------------------------------------------------------------- */ /* Setting 'char' limits */ #define _PDCLIB_CHAR_BIT 8 #define _PDCLIB_UCHAR_MIN 0 #define _PDCLIB_UCHAR_MAX 0xff #define _PDCLIB_SCHAR_MIN (-0x7f - 1) #define _PDCLIB_SCHAR_MAX 0x7f #ifdef _PDCLIB_CHAR_SIGNED #define _PDCLIB_CHAR_MIN _PDCLIB_SCHAR_MIN #define _PDCLIB_CHAR_MAX _PDCLIB_SCHAR_MAX #else #define _PDCLIB_CHAR_MIN 0 #define _PDCLIB_CHAR_MAX _PDCLIB_UCHAR_MAX #endif /* Setting 'short' limits */ #if _PDCLIB_SHRT_BYTES == 2 #define _PDCLIB_SHRT_MAX 0x7fff #define _PDCLIB_SHRT_MIN (-0x7fff - 1) #define _PDCLIB_USHRT_MAX 0xffff #else #error Unsupported width of 'short' (not 16 bit). #endif #define _PDCLIB_USHRT_MIN 0 #if _PDCLIB_INT_BYTES < _PDCLIB_SHRT_BYTES #error Bogus setting: short > int? Check _PDCLIB_config.h. #endif /* Setting 'int' limits */ #if _PDCLIB_INT_BYTES == 2 #define _PDCLIB_INT_MAX 0x7fff #define _PDCLIB_INT_MIN (-0x7fff - 1) #define _PDCLIB_UINT_MAX 0xffffU #elif _PDCLIB_INT_BYTES == 4 #define _PDCLIB_INT_MAX 0x7fffffff #define _PDCLIB_INT_MIN (-0x7fffffff - 1) #define _PDCLIB_UINT_MAX 0xffffffffU #elif _PDCLIB_INT_BYTES == 8 #define _PDCLIB_INT_MAX 0x7fffffffffffffff #define _PDCLIB_INT_MIN (-0x7fffffffffffffff - 1) #define _PDCLIB_UINT_MAX 0xffffffffffffffff #else #error Unsupported width of 'int' (neither 16, 32, nor 64 bit). #endif #define _PDCLIB_UINT_MIN 0 /* Setting 'long' limits */ #if _PDCLIB_LONG_BYTES == 4 #define _PDCLIB_LONG_MAX 0x7fffffffL #define _PDCLIB_LONG_MIN (-0x7fffffffL - 1L) #define _PDCLIB_ULONG_MAX 0xffffffffUL #elif _PDCLIB_LONG_BYTES == 8 #define _PDCLIB_LONG_MAX 0x7fffffffffffffffL #define _PDCLIB_LONG_MIN (-0x7fffffffffffffffL - 1L) #define _PDCLIB_ULONG_MAX 0xffffffffffffffffUL #else #error Unsupported width of 'long' (neither 32 nor 64 bit). #endif #define _PDCLIB_ULONG_MIN 0 /* Setting 'long long' limits */ #if _PDCLIB_LLONG_BYTES == 8 #define _PDCLIB_LLONG_MAX 0x7fffffffffffffffLL #define _PDCLIB_LLONG_MIN (-0x7fffffffffffffffLL - 1LL) #define _PDCLIB_ULLONG_MAX 0xffffffffffffffffULL #elif _PDCLIB_LLONG_BYTES == 16 #define _PDCLIB_LLONG_MAX 0x7fffffffffffffffffffffffffffffffLL #define _PDCLIB_LLONG_MIN (-0x7fffffffffffffffffffffffffffffffLL - 1LL) #define _PDCLIB_ULLONG_MAX 0xffffffffffffffffffffffffffffffffULL #else #error Unsupported width of 'long long' (neither 64 nor 128 bit). #endif #define _PDCLIB_ULLONG_MIN 0 /* -------------------------------------------------------------------------- */ /* exact-width types and their limits */ /* -------------------------------------------------------------------------- */ /* Note that, for the "standard" widths of 8, 16, 32 and 64 bit, the "LEAST" */ /* types are identical to the "exact-width" types, by definition. */ /* Setting 'int8_t', its limits, its literal, and conversion macros. */ #if _PDCLIB_CHAR_BIT == 8 typedef signed char _PDCLIB_int8_t; typedef unsigned char _PDCLIB_uint8_t; #define _PDCLIB_INT8_MAX _PDCLIB_CHAR_MAX #define _PDCLIB_INT8_MIN _PDCLIB_CHAR_MIN #define _PDCLIB_UINT8_MAX _PDCLIB_UCHAR_MAX #define _PDCLIB_8_CONV hh #else #error Unsupported width of char (not 8 bits). #endif /* Setting 'int16_t', its limits, its literal, and conversion macros. */ #if _PDCLIB_INT_BYTES == 2 typedef signed int _PDCLIB_int16_t; typedef unsigned int _PDCLIB_uint16_t; #define _PDCLIB_INT16_MAX _PDCLIB_INT_MAX #define _PDCLIB_INT16_MIN _PDCLIB_INT_MIN #define _PDCLIB_UINT16_MAX _PDCLIB_UINT_MAX #define _PDCLIB_16_CONV #elif _PDCLIB_SHRT_BYTES == 2 typedef signed short _PDCLIB_int16_t; typedef unsigned short _PDCLIB_uint16_t; #define _PDCLIB_INT16_MAX _PDCLIB_SHRT_MAX #define _PDCLIB_INT16_MIN _PDCLIB_SHRT_MIN #define _PDCLIB_UINT16_MAX _PDCLIB_USHRT_MAX #define _PDCLIB_16_CONV h #else #error Neither 'short' nor 'int' are 16-bit. #endif /* Setting 'int32_t', its limits, its literal, and conversion macros. */ #if _PDCLIB_INT_BYTES == 4 typedef signed int _PDCLIB_int32_t; typedef unsigned int _PDCLIB_uint32_t; #define _PDCLIB_INT32_MAX _PDCLIB_INT_MAX #define _PDCLIB_INT32_MIN _PDCLIB_INT_MIN #define _PDCLIB_UINT32_MAX _PDCLIB_UINT_MAX #define _PDCLIB_INT32_LITERAL #define _PDCLIB_UINT32_LITERAL #define _PDCLIB_32_CONV #elif _PDCLIB_LONG_BYTES == 4 typedef signed long _PDCLIB_int32_t; typedef unsigned long _PDCLIB_uint32_t; #define _PDCLIB_INT32_MAX _PDCLIB_LONG_MAX #define _PDCLIB_INT32_MIN _PDCLIB_LONG_MIN #define _PDCLIB_UINT32_MAX _PDCLIB_LONG_MAX #define _PDCLIB_INT32_LITERAL l #define _PDCLIB_UINT32_LITERAL ul #define _PDCLIB_32_CONV l #else #error Neither 'int' nor 'long' are 32-bit. #endif /* Setting 'int64_t', its limits, its literal, and conversion macros. */ #if _PDCLIB_LONG_BYTES == 8 && !defined(_PDCLIB_INT64_IS_LLONG) typedef signed long _PDCLIB_int64_t; typedef unsigned long _PDCLIB_uint64_t; #define _PDCLIB_INT64_MAX _PDCLIB_LONG_MAX #define _PDCLIB_INT64_MIN _PDCLIB_LONG_MIN #define _PDCLIB_UINT64_MAX _PDCLIB_ULONG_MAX #define _PDCLIB_INT64_LITERAL l #define _PDCLIB_UINT64_LITERAL ul #define _PDCLIB_64_CONV l #elif _PDCLIB_LLONG_BYTES == 8 typedef signed long long _PDCLIB_int64_t; typedef unsigned long long _PDCLIB_uint64_t; #define _PDCLIB_INT64_MAX _PDCLIB_LLONG_MAX #define _PDCLIB_INT64_MIN _PDCLIB_LLONG_MIN #define _PDCLIB_UINT64_MAX _PDCLIB_ULLONG_MAX #define _PDCLIB_INT64_LITERAL ll #define _PDCLIB_UINT64_LITERAL ull #define _PDCLIB_64_CONV ll #else #error Neither 'long' nor 'long long' are 64-bit. #endif /* -------------------------------------------------------------------------- */ /* "fastest" types and their limits */ /* -------------------------------------------------------------------------- */ /* This is, admittedly, butt-ugly. But at least it's ugly where the average */ /* user of PDCLib will never see it, and makes <_PDCLIB_config.h> much */ /* cleaner. */ /* -------------------------------------------------------------------------- */ typedef _PDCLIB_fast8 _PDCLIB_int_fast8_t; typedef unsigned _PDCLIB_fast8 _PDCLIB_uint_fast8_t; #define _PDCLIB_INT_FAST8_MIN _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST8 ), _MIN ) #define _PDCLIB_INT_FAST8_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST8 ), _MAX ) #define _PDCLIB_UINT_FAST8_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_U, _PDCLIB_FAST8 ), _MAX ) typedef _PDCLIB_fast16 _PDCLIB_int_fast16_t; typedef unsigned _PDCLIB_fast16 _PDCLIB_uint_fast16_t; #define _PDCLIB_INT_FAST16_MIN _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST16 ), _MIN ) #define _PDCLIB_INT_FAST16_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST16 ), _MAX ) #define _PDCLIB_UINT_FAST16_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_U, _PDCLIB_FAST16 ), _MAX ) typedef _PDCLIB_fast32 _PDCLIB_int_fast32_t; typedef unsigned _PDCLIB_fast32 _PDCLIB_uint_fast32_t; #define _PDCLIB_INT_FAST32_MIN _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST32 ), _MIN ) #define _PDCLIB_INT_FAST32_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST32 ), _MAX ) #define _PDCLIB_UINT_FAST32_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_U, _PDCLIB_FAST32 ), _MAX ) typedef _PDCLIB_fast64 _PDCLIB_int_fast64_t; typedef unsigned _PDCLIB_fast64 _PDCLIB_uint_fast64_t; #define _PDCLIB_INT_FAST64_MIN _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST64 ), _MIN ) #define _PDCLIB_INT_FAST64_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST64 ), _MAX ) #define _PDCLIB_UINT_FAST64_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_U, _PDCLIB_FAST64 ), _MAX ) /* -------------------------------------------------------------------------- */ /* Various typedefs and limits */ /* -------------------------------------------------------------------------- */ typedef _PDCLIB_ptrdiff _PDCLIB_ptrdiff_t; #define _PDCLIB_PTRDIFF_MIN _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_PTRDIFF ), _MIN ) #define _PDCLIB_PTRDIFF_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_PTRDIFF ), _MAX ) #define _PDCLIB_SIG_ATOMIC_MIN _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_SIG_ATOMIC ), _MIN ) #define _PDCLIB_SIG_ATOMIC_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_SIG_ATOMIC ), _MAX ) typedef _PDCLIB_size _PDCLIB_size_t; #define _PDCLIB_SIZE_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_SIZE ), _MAX ) typedef _PDCLIB_wint _PDCLIB_wint_t; #ifndef __cplusplus typedef _PDCLIB_wchar _PDCLIB_wchar_t; #else typedef wchar_t _PDCLIB_wchar_t; #endif #define _PDCLIB_WCHAR_MIN _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_WCHAR ), _MIN ) #define _PDCLIB_WCHAR_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_WCHAR ), _MAX ) typedef _PDCLIB_intptr _PDCLIB_intptr_t; typedef unsigned _PDCLIB_intptr _PDCLIB_uintptr_t; #define _PDCLIB_INTPTR_MIN _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_INTPTR ), _MIN ) #define _PDCLIB_INTPTR_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_INTPTR ), _MAX ) #define _PDCLIB_UINTPTR_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_U, _PDCLIB_INTPTR ), _MAX ) typedef _PDCLIB_intmax _PDCLIB_intmax_t; typedef unsigned _PDCLIB_intmax _PDCLIB_uintmax_t; #define _PDCLIB_INTMAX_MIN _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_INTMAX ), _MIN ) #define _PDCLIB_INTMAX_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_INTMAX ), _MAX ) #define _PDCLIB_UINTMAX_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_U, _PDCLIB_INTMAX ), _MAX ) #define _PDCLIB_INTMAX_C( value ) _PDCLIB_concat( value, _PDCLIB_INTMAX_LITERAL ) #define _PDCLIB_UINTMAX_C( value ) _PDCLIB_concat( value, _PDCLIB_concat( u, _PDCLIB_INTMAX_LITERAL ) ) /* -------------------------------------------------------------------------- */ /* Various internals */ /* -------------------------------------------------------------------------- */ typedef _PDCLIB_time _PDCLIB_time_t; typedef _PDCLIB_clock _PDCLIB_clock_t; #if !defined(_PDCLIB_DEFINE_STRUCT_TIMESPEC) #define _PDCLIB_DEFINE_STRUCT_TIMESPEC() \ struct timespec { \ time_t tv_sec; \ long tv_nsec; \ }; #endif #if !defined(_PDCLIB_DEFINE_STRUCT_TM) #define _PDCLIB_DEFINE_STRUCT_TM() \ struct tm { \ int tm_sec; \ int tm_min; \ int tm_hour; \ int tm_mday; \ int tm_mon; \ int tm_year; \ int tm_wday; \ int tm_yday; \ int tm_isdst; \ }; #endif /* -------------------------------------------------------------------------- */ /* Internal data types */ /* -------------------------------------------------------------------------- */ /* Structure required by both atexit() and exit() for handling atexit functions */ struct _PDCLIB_exitfunc_t { struct _PDCLIB_exitfunc_t * next; void (*func)( void ); }; /* -------------------------------------------------------------------------- */ /* Declaration of helper functions (implemented in functions/_PDCLIB). */ /* -------------------------------------------------------------------------- */ /* This is the main function called by atoi(), atol() and atoll(). */ _PDCLIB_intmax_t _PDCLIB_atomax( const char * s ); /* Two helper functions used by strtol(), strtoul() and long long variants. */ const char * _PDCLIB_strtox_prelim( const char * p, char * sign, int * base ); _PDCLIB_uintmax_t _PDCLIB_strtox_main( const char ** p, unsigned int base, _PDCLIB_uintmax_t error, _PDCLIB_uintmax_t limval, int limdigit, char * sign ); /* Digits arrays used by various integer conversion functions */ extern char _PDCLIB_digits[]; extern char _PDCLIB_Xdigits[]; /* -------------------------------------------------------------------------- */ /* locale / wchar / uchar */ /* -------------------------------------------------------------------------- */ #ifndef __cplusplus typedef _PDCLIB_uint16_t _PDCLIB_char16_t; typedef _PDCLIB_uint32_t _PDCLIB_char32_t; #else typedef char16_t _PDCLIB_char16_t; typedef char32_t _PDCLIB_char32_t; #endif typedef struct _PDCLIB_mbstate { union { /* Is this the best way to represent this? Is this big enough? */ _PDCLIB_uint64_t _St64[15]; _PDCLIB_uint32_t _St32[31]; _PDCLIB_uint16_t _St16[62]; unsigned char _StUC[124]; signed char _StSC[124]; char _StC [124]; }; /* c16/related functions: Surrogate storage * * If zero, no surrogate pending. If nonzero, surrogate. */ _PDCLIB_uint16_t _Surrogate; /* In cases where the underlying codec is capable of regurgitating a * character without consuming any extra input (e.g. a surrogate pair in a * UCS-4 to UTF-16 conversion) then these fields are used to track that * state. In particular, they are used to buffer/fake the input for mbrtowc * and similar functions. * * See _PDCLIB_encoding.h for values of _PendState and the resultant value * in _PendChar. */ unsigned char _PendState; char _PendChar; } _PDCLIB_mbstate_t; typedef struct _PDCLIB_charcodec *_PDCLIB_charcodec_t; typedef struct _PDCLIB_locale *_PDCLIB_locale_t; typedef struct lconv _PDCLIB_lconv_t; _PDCLIB_size_t _PDCLIB_mb_cur_max( void ); /* -------------------------------------------------------------------------- */ /* stdio */ /* -------------------------------------------------------------------------- */ /* Position / status structure for getpos() / fsetpos(). */ typedef struct _PDCLIB_fpos { _PDCLIB_int_fast64_t offset; /* File position offset */ _PDCLIB_mbstate_t mbs; /* Multibyte parsing state */ } _PDCLIB_fpos_t; typedef struct _PDCLIB_fileops _PDCLIB_fileops_t; typedef union _PDCLIB_fd _PDCLIB_fd_t; typedef struct _PDCLIB_file _PDCLIB_file_t; // Rename to _PDCLIB_FILE? /* Status structure required by _PDCLIB_print(). */ struct _PDCLIB_status_t { /* XXX This structure is horrible now. scanf needs its own */ int base; /* base to which the value shall be converted */ _PDCLIB_int_fast32_t flags; /* flags and length modifiers */ unsigned n; /* print: maximum characters to be written (snprintf) */ /* scan: number matched conversion specifiers */ unsigned i; /* number of characters read/written */ unsigned current;/* chars read/written in the CURRENT conversion */ unsigned width; /* specified field width */ int prec; /* specified field precision */ union { void * ctx; /* context for callback */ const char * s; /* input string for scanf */ }; union { _PDCLIB_size_t ( *write ) ( void *p, const char *buf, _PDCLIB_size_t size ); _PDCLIB_file_t *stream; /* for scanf */ }; _PDCLIB_va_list arg; /* argument stack */ }; #endif