http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38536
--- Comment #22 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-01-25 15:44:50 UTC --- Created attachment 23121 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23121 draft patch, working but too many warnings (cf. test suite failures) Currently c_loc(a(1:2)) produces the warning "Array section in '%s' call at %L" which is correct but possibly misleading as F2008 (contrary to F2003) allows it. What F2008 only requires is that the argument is contiguous. At http://gcc.gnu.org/ml/fortran/2011-01/msg00180.html was an early (and very buggy), attached a more advanced patch which gives the warning: "Array might be not contiguous in '%s' call at %L" However, the patch is also overzealous by warning for "a(1:2:5)" which is contiguous (as equivalent to "a(1:1)"). But it also warns elsewhere too much. I think it would be useful to only warn (or error out) if it is known to be noncontiguous of if one cuts down the number of warnings.
