1 files changed, 35 insertions, 0 deletions

diff --git a/private/crt32/misc/setmbval.c b/private/crt32/misc/setmbval.c
new file mode 100644
index 000000000..bbbf48f3f
--- /dev/null
+++ b/private/crt32/misc/setmbval.c
@@ -0,0 +1,35 @@
+/***
+*setmbval.c - sets __invalid_mb_chars variable
+*
+*	Copyright (c) 1993, Microsoft Corporation. All rights reserved.
+*
+*Purpose:
+*	sets __invalid_mb_chars flag to value apppropriate to the NLS API
+*       call support. Older versions of NT do not support this flag.
+*
+**
+*Revision History:
+*	10-22-93  CFW	Module created.
+*
+*******************************************************************************/
+
+#include <windows.h>
+#include <internal.h>
+
+
+void __set_invalid_mb_chars(void)
+{
+        char *astring = "a"; /* test string */
+            
+        /*
+         * Determine whether API supports this flag by making a dummy call.
+         *
+         */
+
+        if (0 != MultiByteToWideChar(0, MB_ERR_INVALID_CHARS, astring, -1, NULL, 0))
+            __invalid_mb_chars = MB_ERR_INVALID_CHARS;
+        else
+            __invalid_mb_chars = 0;
+}
+
+