1 files changed, 56 insertions, 0 deletions

diff --git a/private/crt32/string/wcsrev.c b/private/crt32/string/wcsrev.c
new file mode 100644
index 000000000..0ea09b944
--- /dev/null
+++ b/private/crt32/string/wcsrev.c
@@ -0,0 +1,56 @@
+/***
+*wcsrev.c - reverse a wide-character string in place
+*
+*	Copyright (c) 1985-1992, Microsoft Corporation. All rights reserved.
+*
+*Purpose:
+*	defines _wcsrev() - reverse a wchar_t string in place (not including
+*	L'\0' character)
+*
+*Revision History:
+*	09-09-91   ETC	Created from strrev.c.
+*	04-07-92   KRS	Updated and ripped out _INTL switches.
+*
+*******************************************************************************/
+
+#include <cruntime.h>
+#include <string.h>
+
+/***
+*wchar_t *_wcsrev(string) - reverse a wide-character string in place
+*
+*Purpose:
+*	Reverses the order of characters in the string.  The terminating
+*	null character remains in place (wide-characters).
+*
+*Entry:
+*	wchar_t *string - string to reverse
+*
+*Exit:
+*	returns string - now with reversed characters
+*
+*Exceptions:
+*
+*******************************************************************************/
+
+wchar_t * _CALLTYPE1 _wcsrev (
+	wchar_t * string
+	)
+{
+	wchar_t *start = string;
+	wchar_t *left = string;
+	wchar_t ch;
+
+	while (*string++)		  /* find end of string */
+		;
+	string -= 2;
+
+	while (left < string)
+	{
+		ch = *left;
+		*left++ = *string;
+		*string-- = ch;
+	}
+
+	return(start);
+}