/* specific platforms, e.g. by swapping int instead of char. */
#define _PDCLIB_memswp( i, j, size ) char tmp; do { tmp = *i; *i++ = *j; *j++ = tmp; } while ( --size );
-/* The maximum value that errno can be set to. This is used to set the size */
-/* of the array in struct lconv (<locale.h>) holding error messages for the */
-/* strerror() and perror() functions. (If you change this value because you */
-/* are using additional errno values, you *HAVE* to provide appropriate error */
-/* messages for *ALL* locales.) */
-/* Default is 4 (0, ERANGE, EDOM, EILSEQ). */
-#define _PDCLIB_ERRNO_MAX 4
-
/* -------------------------------------------------------------------------- */
/* Integers */
/* -------------------------------------------------------------------------- */
#define _PDCLIB_fast32 int
#define _PDCLIB_FAST32_CONV
+#ifdef __LP64__
+#define _PDCLIB_FAST64 LONG
+#define _PDCLIB_fast64 long
+#define _PDCLIB_FAST64_CONV l
+#else
#define _PDCLIB_FAST64 LLONG
#define _PDCLIB_fast64 long long
#define _PDCLIB_FAST64_CONV ll
+#endif
/* -------------------------------------------------------------------------- */
/* What follows are a couple of "special" typedefs and their limits. Again, */
_PDCLIB_intmax rem;
};
-/* <time.h>: time_t
- * The C standard doesn't define what representation of time is stored in
+/* <time.h>: time_t
+ * The C standard doesn't define what representation of time is stored in
* time_t when returned by time() , but POSIX defines it to be seconds since the
- * UNIX epoch and most appplications expect that.
+ * UNIX epoch and most appplications expect that.
*
- * time_t is also used as the tv_sec member of struct timespec, which *is*
+ * time_t is also used as the tv_sec member of struct timespec, which *is*
* defined as a linear count of seconds.
*
* time_t is defined as a "real type", so may be a floating point type, but with
* the presence of the nanosecond accurate struct timespec, and with the lack of
- * any functions for manipulating more accurate values of time_t, this is
+ * any functions for manipulating more accurate values of time_t, this is
* probably not useful.
*/
#define _PDCLIB_time long
/* <time.h>: clock_t
*
* A count of "clock ticks", where the length of a clock tick is unspecified by
- * the standard. The implementation is required to provide a macro,
+ * the standard. The implementation is required to provide a macro,
* CLOCKS_PER_SEC, which is the number of "clock ticks" which corresponds to one
* second.
*
* clock_t may be any real type (i.e. integral or floating), and its type on
- * various systems differs.
+ * various systems differs.
*
* On XSI systems, CLOCKS_PER_SEC must be defined to 1000000
*/
*
* The TIME_UTC parameter is passed to the timespec_get function in order to get
* the system time in UTC since an implementation defined epoch (not necessarily
- * the same as that used for time_t). That said, on POSIX the obvious
- * implementation of timespec_get for TIME_UTC is to wrap
+ * the same as that used for time_t). That said, on POSIX the obvious
+ * implementation of timespec_get for TIME_UTC is to wrap
* clock_gettime(CLOCK_REALTIME, ...), which is defined as time in UTC since the
* same epoch.
*
/* TODO: Better document these */
+/* Locale --------------------------------------------------------------------*/
+
+/* Locale method. See _PDCLIB_locale.h */
+#define _PDCLIB_LOCALE_METHOD _PDCLIB_LOCALE_METHOD_TSS
+
+/* wchar_t encoding */
+#define _PDCLIB_WCHAR_ENCODING _PDCLIB_WCHAR_ENCODING_UCS4
+
/* I/O ---------------------------------------------------------------------- */
/* The default size for file buffers. Must be at least 256. */
*/
#define _PDCLIB_UNGETCBUFSIZE 1
+/* errno -------------------------------------------------------------------- */
+
+/* These are the values that _PDCLIB_errno can be set to by the library.
+
+ By keeping PDCLib's errno in the _PDCLIB_* namespace, the library is capable
+ to "translate" between errno values used by the hosting operating system and
+ those used and passed out by the library.
+
+ Example: In the example platform, the remove() function uses the unlink()
+ system call as backend. Linux sets its errno to EISDIR if you try to unlink()
+ a directory, but POSIX demands EPERM. Within the remove() function, you can
+ catch the 'errno == EISDIR', and set '_PDCLIB_errno = _PDCLIB_EPERM'. Anyone
+ using PDCLib's <errno.h> will "see" EPERM instead of EISDIR (the _PDCLIB_*
+ prefix removed by <errno.h> mechanics).
+
+ If you do not want that kind of translation, you might want to "match" the
+ values used by PDCLib with those used by the host OS, to avoid confusion.
+
+ The C standard only defines three distinct errno values: ERANGE, EDOM, and
+ EILSEQ. The standard leaves it up to "the implementation" whether there are
+ any more beyond those three.
+
+ However, C++11 introduced the whole list of POSIX errno values into the
+ standard, so PDCLib might as well define those as well.
+
+ Sometimes the standard says to set errno to indicate an error, but does not
+ prescribe a value. We will use a value from the following list. If POSIX
+ defines a value, we use that; otherwise, we use as seems suitable.
+*/
+
+/* These values were taken from Linux, gcc 4.8. */
+#define _PDCLIB_E2BIG 7
+#define _PDCLIB_EACCES 13
+#define _PDCLIB_EADDRINUSE 98
+#define _PDCLIB_EADDRNOTAVAIL 99
+#define _PDCLIB_EAFNOSUPPORT 97
+#define _PDCLIB_EAGAIN 11
+#define _PDCLIB_EALREADY 114
+#define _PDCLIB_EBADF 9
+#define _PDCLIB_EBADMSG 74
+#define _PDCLIB_EBUSY 16
+#define _PDCLIB_ECANCELED 125
+#define _PDCLIB_ECHILD 10
+#define _PDCLIB_ECONNABORTED 103
+#define _PDCLIB_ECONNREFUSED 111
+#define _PDCLIB_ECONNRESET 104
+#define _PDCLIB_EDEADLK 35
+#define _PDCLIB_EDESTADDRREQ 89
+#define _PDCLIB_EDOM 33
+#define _PDCLIB_EEXIST 17
+#define _PDCLIB_EFAULT 14
+#define _PDCLIB_EFBIG 27
+#define _PDCLIB_EHOSTUNREACH 113
+#define _PDCLIB_EIDRM 43
+#define _PDCLIB_EILSEQ 84
+#define _PDCLIB_EINPROGRESS 115
+#define _PDCLIB_EINTR 4
+#define _PDCLIB_EINVAL 22
+#define _PDCLIB_EIO 5
+#define _PDCLIB_EISCONN 106
+#define _PDCLIB_EISDIR 21
+#define _PDCLIB_ELOOP 40
+#define _PDCLIB_EMFILE 24
+#define _PDCLIB_EMLINK 31
+#define _PDCLIB_EMSGSIZE 90
+#define _PDCLIB_ENAMETOOLONG 36
+#define _PDCLIB_ENETDOWN 100
+#define _PDCLIB_ENETRESET 102
+#define _PDCLIB_ENETUNREACH 101
+#define _PDCLIB_ENFILE 23
+#define _PDCLIB_ENOBUFS 105
+#define _PDCLIB_ENODATA 61
+#define _PDCLIB_ENODEV 19
+#define _PDCLIB_ENOENT 2
+#define _PDCLIB_ENOEXEC 8
+#define _PDCLIB_ENOLCK 37
+#define _PDCLIB_ENOLINK 67
+#define _PDCLIB_ENOMEM 12
+#define _PDCLIB_ENOMSG 42
+#define _PDCLIB_ENOPROTOOPT 92
+#define _PDCLIB_ENOSPC 28
+#define _PDCLIB_ENOSR 63
+#define _PDCLIB_ENOSTR 60
+#define _PDCLIB_ENOSYS 38
+#define _PDCLIB_ENOTCONN 107
+#define _PDCLIB_ENOTDIR 20
+#define _PDCLIB_ENOTEMPTY 39
+#define _PDCLIB_ENOTRECOVERABLE 131
+#define _PDCLIB_ENOTSOCK 88
+#define _PDCLIB_ENOTSUP 95
+#define _PDCLIB_ENOTTY 25
+#define _PDCLIB_ENXIO 6
+#define _PDCLIB_EOPNOTSUPP 95
+#define _PDCLIB_EOVERFLOW 75
+#define _PDCLIB_EOWNERDEAD 130
+#define _PDCLIB_EPERM 1
+#define _PDCLIB_EPIPE 32
+#define _PDCLIB_EPROTO 71
+#define _PDCLIB_EPROTONOSUPPORT 93
+#define _PDCLIB_EPROTOTYPE 91
+#define _PDCLIB_ERANGE 34
+#define _PDCLIB_EROFS 30
+#define _PDCLIB_ESPIPE 29
+#define _PDCLIB_ESRCH 3
+#define _PDCLIB_ETIME 62
+#define _PDCLIB_ETIMEDOUT 110
+#define _PDCLIB_ETXTBSY 26
+#define _PDCLIB_EWOULDBLOCK 11
+#define _PDCLIB_EXDEV 18
+
+/* This is used to set the size of the array in struct lconv (<locale.h>) */
+/* holding the error messages for the strerror() and perror() fuctions. If */
+/* you change this value because you are using additional errno values, you */
+/* *HAVE* to provide appropriate error messages for *ALL* locales. */
+/* Needs to be one higher than the highest errno value above. */
+#define _PDCLIB_ERRNO_MAX 132
+
#endif