1 files changed, 80 insertions, 0 deletions
diff --git a/StdLib/LibC/Wchar/Copying.c b/StdLib/LibC/Wchar/Copying.c
new file mode 100644
index 0000000000..7075437965
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+++ b/StdLib/LibC/Wchar/Copying.c
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+/** @file
+    Copying Functions for <wchar.h>.
+
+    Unless explicitly stated otherwise, if the execution of a function declared
+    in this file causes copying to take place between objects that overlap, the
+    behavior is undefined.
+
+    Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+    This program and the accompanying materials are licensed and made available under
+    the terms and conditions of the BSD License that accompanies this distribution.
+    The full text of the license may be found at
+    http://opensource.org/licenses/bsd-license.php.
+
+    THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+    WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+**/
+#include  <Uefi.h>
+#include  <Library/BaseLib.h>
+#include  <Library/BaseMemoryLib.h>
+
+#include  <LibConfig.h>
+
+#include  <wchar.h>
+
+/** The wcscpy function copies the wide string pointed to by s2 (including the
+    terminating null wide character) into the array pointed to by s1.
+
+    @return   The wcscpy function returns the value of s1.
+**/
+wchar_t *wcscpy(wchar_t * __restrict s1, const wchar_t * __restrict s2)
+{
+  return (wchar_t *)StrCpy( (CHAR16 *)s1, (CONST CHAR16 *)s2);
+}
+
+/** The wcsncpy function copies not more than n wide characters (those that
+    follow a null wide character are not copied) from the array pointed to by
+    s2 to the array pointed to by s1.
+
+    If the array pointed to by s2 is a wide string that is shorter than n wide
+    characters, null wide characters are appended to the copy in the array
+    pointed to by s1, until n wide characters in all have been written.
+
+    @return   The wcsncpy function returns the value of s1.
+**/
+wchar_t *wcsncpy(wchar_t * __restrict s1, const wchar_t * __restrict s2, size_t n)
+{
+  return (wchar_t *)StrnCpy( (CHAR16 *)s1, (CONST CHAR16 *)s2, (UINTN)n);
+}
+
+/** The wmemcpy function copies n wide characters from the object pointed to by
+    s2 to the object pointed to by s1.
+
+    Use this function if you know that s1 and s2 DO NOT Overlap.  Otherwise,
+    use wmemmove.
+
+    @return   The wmemcpy function returns the value of s1.
+**/
+wchar_t *wmemcpy(wchar_t * __restrict s1, const wchar_t * __restrict s2, size_t n)
+{
+  return (wchar_t *)CopyMem( s1, s2, (UINTN)(n * sizeof(wchar_t)));
+}
+
+/** The wmemmove function copies n wide characters from the object pointed to by
+    s2 to the object pointed to by s1. The objects pointed to by s1 and s2 are
+    allowed to overlap.
+
+    Because the UEFI BaseMemoryLib function CopyMem explicitly handles
+    overlapping source and destination objects, this function and wmemcpy are
+    implemented identically.
+
+    For programming clarity, it is recommended that you use wmemcpy if you know
+    that s1 and s2 DO NOT Overlap.  If s1 and s2 might possibly overlap, then
+    use wmemmove.
+
+    @return   The wmemmove function returns the value of s1.
+**/
+wchar_t *wmemmove(wchar_t *s1, const wchar_t *s2, size_t n)
+{
+  return (wchar_t *)CopyMem( s1, s2, (UINTN)(n * sizeof(wchar_t)));
+}