On Wed, 2014-09-10 at 09:21 +0200, Jan Kratochvil wrote: > On Tue, 09 Sep 2014 23:55:34 +0200, Roland McGrath wrote: > > > int segment; /* Index of first segment table entry. */ > > > bool gc; /* Mark/sweep flag. */ > > > + bool is_executable : 1; /* Use Dwfl::executable_for_core? */ > > > > If you're going to use a bitfield, then make every other bool in that > > struct a bitfield too. But it's not usually worthwhile. It's > > premature microoptimization that privileges memory over CPU, which > > might not even be the right tradeoff any more. > > I really do not mind, up to the maintainer how it all should be. I don't think it is very helpful or productive to refuse to have a technical opinion on a fair question about a code change you are proposing. But if you need a "ruling" to move forward then I am with Roland that the usage of booleans in a structure should be consistent. Don't introduce a one-off bool bitfield unless you group the other bools in the struct together and make them all bitfields. If you are not doing that, then just make it a regular bool field. Thanks, Mark