https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86532
--- Comment #13 from Martin Sebor <msebor at gcc dot gnu.org> --- (In reply to Richard Biener from comment #9) > > I bet Martin would argue it's invalid ... That's right, the example in comment 8 is undefined because strlen() requires a nul-terminated string argument and a[0] in the call strlen(a[0]) is not such a string. It's not valid for strlen() to access one subobject when passed a pointer to another, even if the two are adjacent in memory. This applies equally to struct members as well as multidimensional arrays.
