On: The Lost Art of C Structure Packing

[JoachimSchipper]

gcc -Wpadded is very useful, too (its chief downside is that you don't usually want to combine it with -Werror - padding is not always bad.)

[agwa → JoachimSchipper]

You can always add -Wno-error=padded to disable -Werror just for -Wpadded

[JoachimSchipper → agwa]

I seem to have missed that trick. Thanks!

[dllthomas → JoachimSchipper]

You could always pad manually to clear the warnings.