-/* $Id$ */
+#ifndef _PDCLIB_INT_H
+#define _PDCLIB_INT_H
/* PDCLib internal integer logic <_PDCLIB_int.h>
/* would be considered a bug / missing feature: notify the author(s). */
/* -------------------------------------------------------------------------- */
-#ifndef _PDCLIB_CONFIG_H
-#define _PDCLIB_CONFIG_H _PDCLIB_CONFIG_H
#include <_PDCLIB_config.h>
-#endif
-
-#ifndef _PDCLIB_AUX_H
-#define _PDCLIB_AUX_H _PDCLIB_AUX_H
#include <_PDCLIB_aux.h>
-#endif
/* null pointer constant */
#define _PDCLIB_NULL 0
#elif _PDCLIB_LLONG_BYTES == 16
#define _PDCLIB_LLONG_MAX 0x7fffffffffffffffffffffffffffffffLL
#define _PDCLIB_LLONG_MIN (-0x7fffffffffffffffffffffffffffffffLL - 1LL)
-#define _PDCLIB_ULLONG_MAX 0xffffffffffffffffffffffffffffffffLL
+#define _PDCLIB_ULLONG_MAX 0xffffffffffffffffffffffffffffffffULL
#else
#error Unsupported width of 'long long' (neither 64 nor 128 bit).
#endif
/* -------------------------------------------------------------------------- */
/* <stdint.h> 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, and its literal. */
+/* 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, and its literal */
+/* 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, and its literal */
+/* 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_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_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
-#if _PDCLIB_LONG_BYTES == 8
+/* 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_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_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
typedef _PDCLIB_size _PDCLIB_size_t;
#define _PDCLIB_SIZE_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_SIZE ), _MAX )
-typedef _PDCLIB_wchar _PDCLIB_wchar_t;
+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 )
#define _PDCLIB_UINTMAX_C( value ) _PDCLIB_concat( value, _PDCLIB_concat( u, _PDCLIB_INTMAX_LITERAL ) )
/* -------------------------------------------------------------------------- */
-/* Various <stdio.h> internals */
+/* Various <time.h> internals */
/* -------------------------------------------------------------------------- */
-/* Flags for representing mode (see fopen()). Note these must fit the same
- status field as the _IO?BF flags in <stdio.h> and the internal flags below.
-*/
-#define _PDCLIB_FREAD 8u
-#define _PDCLIB_FWRITE 16u
-#define _PDCLIB_FAPPEND 32u
-#define _PDCLIB_FRW 64u
-#define _PDCLIB_FBIN 128u
-
-/* Internal flags, made to fit the same status field as the flags above. */
-#define _PDCLIB_LIBBUFFER 512u
-#define _PDCLIB_ERRORFLAG 1024u
-#define _PDCLIB_EOFFLAG 2048u
-#define _PDCLIB_WIDESTREAM 4096u
-#define _PDCLIB_BYTESTREAM 8192u
-
-/* Position / status structure for getpos() / fsetpos(). */
-struct _PDCLIB_fpos_t
-{
- _PDCLIB_uint64_t offset; /* File position offset */
- int status; /* Multibyte parsing state (unused, reserved) */
-};
+typedef _PDCLIB_time _PDCLIB_time_t;
+typedef _PDCLIB_clock _PDCLIB_clock_t;
-/* FILE structure */
-struct _PDCLIB_file_t
-{
- _PDCLIB_fd_t handle; /* OS file handle */
- char * buffer; /* Pointer to buffer memory */
- _PDCLIB_size_t bufsize; /* Size of buffer */
- _PDCLIB_size_t bufidx; /* Index of current position in buffer */
- _PDCLIB_size_t bufend; /* Index of last pre-read character in buffer */
- struct _PDCLIB_fpos_t pos; /* Offset and multibyte parsing state */
- _PDCLIB_size_t ungetidx; /* Number of ungetc()'ed characters */
- unsigned char * ungetbuf; /* ungetc() buffer */
- unsigned int status; /* Status flags; see above */
- /* multibyte parsing status to be added later */
- char * filename; /* Name the current stream has been opened with */
- struct _PDCLIB_file_t * next; /* Pointer to next struct (internal) */
-};
+#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 */
/* Status structure required by _PDCLIB_print(). */
struct _PDCLIB_status_t
{
- int base; /* base to which the value shall be converted */
+ int base; /* base to which the value shall be converted */
_PDCLIB_int_fast32_t flags; /* flags and length modifiers */
- _PDCLIB_size_t n; /* maximum number of characters to be written */
- _PDCLIB_size_t i; /* number of characters already written */
- _PDCLIB_size_t this; /* output chars in the current conversion */
- char * s; /* target buffer */
- _PDCLIB_size_t width; /* width of current field */
- _PDCLIB_size_t prec; /* precision of current field */
- struct _PDCLIB_file_t * stream;/* for to-stream output */
- _PDCLIB_va_list arg; /* argument stack passed to the printf function */
+ unsigned n; /* print: maximum characters to be written */
+ /* scan: number matched conversion specifiers */
+ unsigned i; /* number of characters read/written */
+ unsigned current;/* chars read/written in the CURRENT conversion */
+ char * s; /* *sprintf(): target buffer */
+ /* *sscanf(): source string */
+ unsigned width; /* specified field width */
+ int prec; /* specified field precision */
+ struct _PDCLIB_file_t * stream; /* *fprintf() / *fscanf() stream */
+ _PDCLIB_va_list arg; /* argument stack */
};
/* -------------------------------------------------------------------------- */
/* The worker for all scanf() type of functions. The pointer spec should point
to the introducing '%' of a conversion specifier. The status structure is to
be that of the current scanf() function, of which the member stream will be
- preserved, n, i, and s will be updated; and all others will be trashed by the
- function.
- Returns a pointer to the first character not parsed as conversion specifier.
+ preserved; n, i, and s will be updated; and all others will be trashed by
+ the function.
+ Returns a pointer to the first character not parsed as conversion specifier,
+ or NULL in case of error.
+ FIXME: Should distinguish between matching and input error
*/
const char * _PDCLIB_scan( const char * spec, struct _PDCLIB_status_t * status );
*/
int _PDCLIB_prepwrite( struct _PDCLIB_file_t * stream );
+/* Closing all streams on program exit */
+void _PDCLIB_closeall( void );
+
/* -------------------------------------------------------------------------- */
/* errno */
/* -------------------------------------------------------------------------- */
+/* If PDCLib would call its error number "errno" directly, there would be no way
+ to catch its value from underlying system calls that also use it (i.e., POSIX
+ operating systems). That is why we use an internal name, providing a means to
+ access it through <errno.h>.
+*/
extern int _PDCLIB_errno;
-int * _PDCLIB_errno_func( void );
-
-/* ERANGE and EDOM are specified by the standard. */
-#define _PDCLIB_ERANGE 1
-#define _PDCLIB_EDOM 2
-/* Used in the example implementation for any kind of I/O error. */
-#define _PDCLIB_EIO 3
-/* Used in the example implementation for "unknown error". */
-#define _PDCLIB_EUNKNOWN 4
-/* Used in the example implementation for "invalid parameter value". */
-#define _PDCLIB_EINVAL 5
-/* Used in the example implementation for "I/O retries exceeded". */
-#define _PDCLIB_ERETRY 6
+/* A mechanism for delayed evaluation. (Not sure if this is really necessary, so
+ no detailed documentation on the "why".)
+*/
+int * _PDCLIB_errno_func( void ) _PDCLIB_nothrow;
+
+/* -------------------------------------------------------------------------- */
+/* <ctype.h> lookup tables */
+/* -------------------------------------------------------------------------- */
+
+#define _PDCLIB_CTYPE_ALPHA 1
+#define _PDCLIB_CTYPE_BLANK 2
+#define _PDCLIB_CTYPE_CNTRL 4
+#define _PDCLIB_CTYPE_GRAPH 8
+#define _PDCLIB_CTYPE_PUNCT 16
+#define _PDCLIB_CTYPE_SPACE 32
+#define _PDCLIB_CTYPE_LOWER 64
+#define _PDCLIB_CTYPE_UPPER 128
+#define _PDCLIB_CTYPE_DIGIT 256
+#define _PDCLIB_CTYPE_XDIGT 512
+
+struct _PDCLIB_ctype_t
+{
+ _PDCLIB_uint16_t flags;
+ unsigned char upper;
+ unsigned char lower;
+ unsigned char collation;
+};
+
+#endif
projects / pdclib.old / blobdiff