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1//
2// wmemmove_s.cpp
3//
4// Copyright (c) Microsoft Corporation. All rights reserved.
5//
6// Defines wmemmove_s(), which copies wide characters from a source buffer to a
7// destination buffer. Overlapping buffers are treated specially, to avoid
8// propagation.
9//
10// Returns 0 if successful; an error code on failure.
11//
12#include <corecrt_internal.h>
13#include <wchar.h>
14
15
16
17extern "C" errno_t __cdecl wmemmove_s(
18 wchar_t* const destination,
19 size_t const size_in_elements,
20 wchar_t const* const source,
21 size_t const count
22 )
23{
24 if (count == 0)
25 return 0;
26
27#pragma warning(suppress:__WARNING_HIGH_PRIORITY_OVERFLOW_POSTCONDITION)
28 _VALIDATE_RETURN_ERRCODE(destination != nullptr, EINVAL);
29 _VALIDATE_RETURN_ERRCODE(source != nullptr, EINVAL);
30 _VALIDATE_RETURN_ERRCODE(size_in_elements >= count, ERANGE);
31
32#pragma warning(suppress:__WARNING_BANNED_API_USAGEL2) /* 28726 */
33 wmemmove(destination, source, count);
34 return 0;
35}