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12345678910111213141516171819202122232425262728293031323334353637383940//// wcsncat.cpp//// Copyright (c) Microsoft Corporation. All rights reserved.//// Defines wcsncat(), which appends n characters of the source string onto the// end of the destination string. The destination string is always null// terminated. Unlike wcsncpy, this function does not pad out to 'count'// characters.//#include <string.h>
#pragma warning(disable:__WARNING_POTENTIAL_BUFFER_OVERFLOW_NULLTERMINATED) // 26018
extern "C" wchar_t* __cdecl wcsncat( wchar_t* const destination, wchar_t const* const source, size_t const count ){ wchar_t* destination_it = destination;
// Find the end of the destination string: while (*destination_it) ++destination_it;
// Append the source string: wchar_t const* source_it = source; for (size_t i = 0; i != count; ++i) { if ((*destination_it++ = *source_it++) == 0) return destination; }
*destination_it = 0;
return destination;}