C / C++ / MFC

std::unique_ptr<BYTE*, std::function<void(BYTE**)>>     _VersionData{};

_VersionData = std::make_unique<BYTE*>(new BYTE[_VersionDataLength], [](BYTE** ptr) {delete *ptr; }); // Attempting to use a lambda expression as a custom destructor

error C2440: 'initializing': cannot convert from 'initializer list' to 'unsigned char *'
note: The initializer contains too many elements

std::unique_ptr<BYTE, void(*)(BYTE*)>                 _VersionData;

auto CustomDeleter = [](BYTE* ptr) {delete[] ptr; };

_VersionData = std::unique_ptr<BYTE, decltype(CustomDeleter)>(new BYTE[_VersionDataLength], CustomDeleter);

CFileVersionInfo::CFileVersionInfo()
	: _VersionData(nullptr, [](BYTE* ptr) {delete[] ptr; })
{
   // constructor code here...
}