On Wed, 2 Nov 2011, DJ Delorie wrote: > > > Index: configure.ac > > > + # Dereferencing -1 is a compile-time error > > > > This (those lines) look a little cryptic (and lack punctuation ;) > > Wild improvement guess: "Too small 'int'?". > > No, the compiler specifically tests for unaligned accesses and gives a > compile-time error, at Renesas's requrest. The chip can't do > unaligned accesses correctly, but it doesn't fault - it just silently > accesses the wrong memory. So the compiler errors instead.
Ah. All validity issues aside, then "Dereferencing unaligned pointers yields a compile-time error" or "pointers with unknown alignment" would be much less cryptic: the "Dereferencing -1" just sounds like *(char *) -1 or a cut brgds, H-P
