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

I find shared_ptr a bit more useful as a generic resource guard. It does not require the deleter to be the part of template arguments and as such can be easily passed around.

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