StringCopy

#include <Windows.h>

PWCHAR StringCopyW(_Inout_ PWCHAR String1, _In_ LPCWSTR String2)
{
    PWCHAR p = String1;

    while ((*p++ = *String2++) != 0);

    return String1;
}

INT main(VOID)
{
    WCHAR StringExample[256] = L"Hash This String";
    WCHAR EmptyBuffer[256] = { 0 };
    
    //copy stringexample into emptybuffer
    StringCopyW(EmptyBuffer, StringExample);
    
    return ERROR_SUCCESS;
}