Consistently define the rune types.

Follow NetBSD's lead and add a _BSD_MBSTATE_T_ type.

1 files changed, 19 insertions, 1 deletions

diff --git a/sys/i386/include/ansi.h b/sys/i386/include/ansi.h
index b9b62da..8f41b26 100644
--- a/sys/i386/include/ansi.h
+++ b/sys/i386/include/ansi.h
@@ -93,12 +93,14 @@ typedef	unsigned int		__uintptr_t;
  * one (perhaps nonstandard) header are defined here.  Standard headers
  * use _BSD_XXX_T_ without undef'ing it.
  */
-#define	_BSD_CT_RUNE_T_	int			/* arg type for ctype funcs */
 #define	_BSD_OFF_T_	__int64_t		/* file offset */
 #define	_BSD_PID_T_	int			/* process [group] */
 #define	_BSD_VA_LIST_	char *			/* va_list */
 
 /*
+ * NOTE: rune_t is not covered by ANSI nor other standards, and should not
+ * be instantiated outside of lib/libc/locale.  Use wchar_t.
+ *
  * The rune type is declared to be an ``int'' instead of the more natural
  * ``unsigned long'' or ``long''.  Two things are happening here.  It is not
  * unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
@@ -108,7 +110,23 @@ typedef	unsigned int		__uintptr_t;
  * ANSI C), but they use _BSD_CT_RUNE_T_ instead of int.  By changing it
  * here, you lose a bit of ANSI conformance, but your programs will still
  * work.
+ *
+ * Note that _WCHAR_T_ and _RUNE_T_ must be of the same type.
+ */
+#define	_BSD_CT_RUNE_T_	int			/* arg type for ctype funcs */
+#define	_BSD_RUNE_T_	_BSD_CT_RUNE_T_		/* rune_t */
+#define	_BSD_WCHAR_T_	_BSD_CT_RUNE_T_		/* wchar_t */
+#define	_BSD_WINT_T_	_BSD_CT_RUNE_T_		/* wint_t */
+
+/*
+ * mbstate_t is an opaque object to keep conversion state, during multibyte
+ * stream conversions.  The content must not be referenced by user programs.
  */
+typedef union {
+	char		__mbstate8[128];
+	__int64_t	_mbstateL;		/* for alignment */
+ } __mbstate_t;
+#define	_BSD_MBSTATE_T_	__mbstate_t		/* mbstate_t */
 
 /*
  * Frequencies of the clock ticks reported by clock() and times().  They