Added imaxdiv_t (for inttypes.h).

[pdclib] / platform / example / internals / _PDCLIB_config.h

diff --git a/platform/example/internals/_PDCLIB_config.h b/platform/example/internals/_PDCLIB_config.h
index ef8dea4355d793f183ab4cf1b829a0bbc324f49d..4251522bc4ec88d0b787c2878f5d16cdafe7b3c8 100644 (file)
--- a/platform/example/internals/_PDCLIB_config.h
+++ b/platform/example/internals/_PDCLIB_config.h
@@ -123,6 +123,7 @@ struct _PDCLIB_lldiv_t
    interrupts). The type itself is not defined in a freestanding environment,
    but its limits are. (Don't ask.)
 */
+#define _PDCLIB_sig_atomic int
 #define _PDCLIB_SIG_ATOMIC INT
 
 /* Result type of the 'sizeof' operator (must be unsigned) */
@@ -140,10 +141,19 @@ struct _PDCLIB_lldiv_t
 
 /* Largest supported integer type. Implementation note: see _PDCLIB_atomax(). */
 #define _PDCLIB_intmax long long int
-#define _PDCLIB_INTMAX LLINT
+#define _PDCLIB_INTMAX LLONG
 /* You are also required to state the literal suffix for the intmax type      */
 #define _PDCLIB_INTMAX_LITERAL ll
 
+/* <inttypes.h> defines imaxdiv(), which is equivalent to the div() function  */
+/* family (see further above) with intmax_t as basis.                         */
+
+struct _PDCLIB_imaxdiv_t
+{
+    _PDCLIB_intmax quot;
+    _PDCLIB_intmax rem;
+};
+
 /* -------------------------------------------------------------------------- */
 /* Floating Point                                                             */
 /* -------------------------------------------------------------------------- */
@@ -211,37 +221,60 @@ typedef char * _PDCLIB_va_list;
 /* The actual *functions* of the OS interface are declared in _PDCLIB_glue.h. */
 /* -------------------------------------------------------------------------- */
 
-/* Memory management */
+/* Memory management -------------------------------------------------------- */
 
 /* Set this to the page size of your OS. If your OS does not support paging, set
    to an appropriate value. (Too small, and malloc() will call the kernel too
-   often. Too large, and you will waste memory.
+   often. Too large, and you will waste memory.)
 */
 #define _PDCLIB_PAGESIZE 4096
 
-/* Set this to the minimum memory node size. Any malloc() for a smaller siz
-   will be satisfied by a malloc() of this size instead.
+/* Set this to the minimum memory node size. Any malloc() for a smaller size
+   will be satisfied by a malloc() of this size instead (to avoid excessive
+   fragmentation).
 */
 #define _PDCLIB_MINALLOC 8
 
-/* I/O */
+/* I/O ---------------------------------------------------------------------- */
 
-/* The unique file descriptor returned by _PDCLIB_open(). */
+/* The type of the file descriptor returned by _PDCLIB_open(). */
 typedef int _PDCLIB_fd_t;
 
-/* A type in which to store file offsets. See fgetpos() / fsetpos(). */
-typedef struct
-{
-    int position;
-    int parse_state;
-} _PDCLIB_fpos_t;
+/* The value (of type _PDCLIB_fd_t) returned by _PDCLIB_open() if the operation
+   failed.
+*/
+#define _PDCLIB_NOHANDLE ( (_PDCLIB_fd_t) -1 )
+
+/* The default size for file buffers. Must be at least 256. */
+#define _PDCLIB_BUFSIZ 1024
+
+/* The minimum number of files the implementation can open simultaneously. Must
+   be at least 8. Depends largely on how the bookkeeping is done by fopen() /
+   freopen() / fclose(). The example implementation limits the number of open
+   files only by available memory.
+*/
+#define _PDCLIB_FOPEN_MAX 8
+
+/* Length of the longest filename the implementation guarantees to support. */
+#define _PDCLIB_FILENAME_MAX 128
+
+/* Buffer size for tmpnam(). */
+#define _PDCLIB_L_tmpnam 100
+
+/* Number of distinct file names that can be generated by tmpnam(). */
+#define _PDCLIB_TMP_MAX 50
+
+/* The values of SEEK_SET, SEEK_CUR and SEEK_END, used by fseek().
+   Since at least one platform (POSIX) uses the same symbols for its own "seek"
+   function, we use whatever the host defines (if it does define them).
+*/
+#define _PDCLIB_SEEK_SET 0
+#define _PDCLIB_SEEK_CUR 1
+#define _PDCLIB_SEEK_END 2
+
+/* The number of characters that can be buffered with ungetc(). The standard
+   guarantees only one (1); anything larger would make applications relying on
+   this capability dependent on implementation-defined behaviour (not good).
+*/
+#define _PDCLIB_UNGETCBUFSIZE 1
 
-/* The mode flags used in calls to _PDCLIB_open(). */
-enum _PDCLIB_iomode_e
-{
-    _PDCLIB_io_read     = 1,
-    _PDCLIB_io_write    = 2,
-    _PDCLIB_io_append   = 4,
-    _PDCLIB_io_create   = 8,
-    _PDCLIB_io_truncate = 16,
-};