/* Various <stdio.h> internals */
/* -------------------------------------------------------------------------- */
-/* Flags for representing mode (see fopen()). */
-#define _PDCLIB_FREAD 1
-#define _PDCLIB_FWRITE 2
-#define _PDCLIB_FAPPEND 4
-#define _PDCLIB_FRW 8
-#define _PDCLIB_FBIN 16
+/* 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_WROTELAST 256u
+#define _PDCLIB_LIBBUFFER 512u
+#define _PDCLIB_VIRGINSTR 1024u
+#define _PDCLIB_ERRORFLAG 2048u
+#define _PDCLIB_EOFFLAG 4096u
struct _PDCLIB_file_t
{
_PDCLIB_fd_t handle; /* OS-specific file descriptor */
_PDCLIB_fpos_t position; /* file position indicator */
- void * buffer; /* file buffer */
+ char * buffer; /* file buffer */
_PDCLIB_size_t bufsize; /* size of buffer */
- int status; /* misc. status bits */
+ _PDCLIB_size_t bufidx; /* pointer into buffer */
+ unsigned int status; /* misc. status bits */
/*mbstate_t mbstate; multibyte parse state - TODO: Unmask. */
struct _PDCLIB_file_t * next; /* provisions for linked list handling */
};
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, _PDCLIB_uintmax_t limdigit, char * sign );
-/* Digits array used by various integer conversion functions in <stdlib.h> */
+/* Digits arrays used by various integer conversion functions */
extern char _PDCLIB_digits[];
-
-/* The worker for all printf() type of functions. */
+extern char _PDCLIB_Xdigits[];
+
+/* The worker for all printf() 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 printf() function, of which the members n, s, stream
+ and arg will be preserved, i will be updated, and all others will be trashed
+ by the function.
+ Returns a pointer to the first character not parsed as conversion specifier.
+*/
const char * _PDCLIB_print( const char * spec, struct _PDCLIB_status_t * status );