* mingwex/mbrtowc.c: New file.

	* mingwex/wcrtomb.c: New file.
	* mingwex/btowc.c: New file.
	* mingwex/wctob.c: New file.
	* mingwex/mb_wc_common.h: New file.
	* mingwex/Makefile.in (DISTFILES): Add new files.
	(Q8_OBJS): Add new objects.
	* include/wchar.h: Adjust comment about mbrtowc() and related
	funcions. Add __restrict__ to pointer params in prototypes.
	(wmemset. wmemchr, wmemcpy, wmemmove, wcstoll, wcstoull): Remove
	arg names from protototypes.

1 files changed, 19 insertions, 0 deletions

diff --git a/winsup/mingw/mingwex/btowc.c b/winsup/mingw/mingwex/btowc.c
new file mode 100755
index 000000000..b369190d7
--- /dev/null
+++ b/winsup/mingw/mingwex/btowc.c
@@ -0,0 +1,19 @@
+#include "mb_wc_common.h"
+#include <wchar.h>
+#include <stdio.h>
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+wint_t btowc (int c)
+{
+  if (c == EOF)
+    return (WEOF);
+  else
+    {
+      unsigned char ch = c;
+      wchar_t wc = WEOF;
+      MultiByteToWideChar (get_cp_from_locale(), MB_ERR_INVALID_CHARS,
+			   (char*)&ch, 1, &wc, 1);
+      return wc;
+    }
+}