Re: [libvirt] Re: [PATCH] also allow use of XZ for Qemu image compression

At Chris' suggestion, I've added a comment warning not to do what I did ;-) To make it even more obvious that these numbers matter, I've assigned explicit constants in the enum: + QEMUD_SAVE_FORMAT_RAW = 0, + QEMUD_SAVE_FORMAT_GZIP = 1, + QEMUD_SAVE_FORMAT_BZIP2 = 2, Currently, if someone accidentally adds this (mistakenly reused number): + QEMUD_SAVE_FORMAT_OOPS = 2, the compiler won't catch it. However, with a small additional change to use VIR_ENUM_DECL and VIR_ENUM_IMPL, thus replacing the if/elsif/ chains, and the compiler *would* detect that mistake. It'd also help to factor out the QEMUD_SAVE_FORMAT_<> to "<>" association, rather than having literals like "gzip" and "bzip2" in two places. Now that I've described that, I'll prepare a separate patch. For now, here's the added comment and enum initializers.