extern char _PDCLIB_digits[];
extern char _PDCLIB_Xdigits[];
-/* -------------------------------------------------------------------------- */
-/* 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;
-
-/* 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;
-
/* -------------------------------------------------------------------------- */
/* locale / wchar / uchar */
/* -------------------------------------------------------------------------- */
#ifndef __cplusplus
-typedef _PDCLIB_int16_t _PDCLIB_char16_t;
-typedef _PDCLIB_int32_t _PDCLIB_char32_t;
+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;
char _StC [124];
};
- union {
- /* c16/related functions: Surrogate storage
- *
- * If zero, no surrogate pending. If nonzero, surrogate.
- */
- _PDCLIB_uint16_t _Surrogate;
-
- /* Reserved for potential mbtoutf8/etc functions */
- unsigned char _U8[4];
- };
+ /* 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;
/* 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 */
+ 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 */
- char * s; /* *sprintf(): target buffer */
- /* *sscanf(): source string */
unsigned width; /* specified field width */
int prec; /* specified field precision */
- _PDCLIB_file_t * stream; /* *fprintf() / *fscanf() stream */
+
+ 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 */
};