From: Jonathan Nieder Date: Mon, 18 Oct 2010 18:42:09 GMT Subject: empty structs Message-ID: <20101018184209.GD6877@burratino> In-Reply-To: Andreas Schwab wrote: > Jonathan Nieder writes: >> Just to throw an idea out: you can also do something like >> >> #ifndef NO_POSIX_GOODIES >> struct credentials { >> }; >> #else [...] > Empty structures are not standard C. (For those following at home: "A structure type describes a sequentially allocated nonempty set of member objects (and, in certain circumstances, an incomplete array), each of which has an optionally specified name and possibly distinct type.") So I guess future patches following the pattern of v1.7.3-rc0~33^2~13 git wrapper: introduce startup_info struct, 2010-08-05) should be written like struct startup_info { char dummy; }; Yuck. Thanks for the pointer.