std::unique_ptr with custom deleter for win32 LocalFree

Question

I have the win32 API CommandLineToArgvW which returns a LPWSTR* and warns me that

CommandLineToArgvW allocates a

Answer 1

Declaring of custom deleter is not so pretty, use of decltype() is faster. std::shared_ptr is an alternative, but it is larger than std::unique_ptr. If you don't want to share a pointer, then take a unique_ptr.

std::unique_ptr 
     p( ::CommandLineToArgvW( L"cmd.exe p1 p2 p3", &n ), ::LocalFree );