Allow sub2ind() to accept indices outside the size of the input subscripts (bug #62184) * NEWS.8.md: Announce change in Matlab Compatibility section. * sub2ind.cc: Add '#include "utility"' for access to std::swap. * sub2ind.cc (Fsub2ind): Check nargout to figure out ndims of output. For special case of vector (1-dimension), put in code to guarantee a row vector output. Add BIST tests for bug #62184. Remove input validation BIST which no longer applies. * Array-util.cc (ind2sub): Remove input validation requiring index to be within range of subscript size. Adjust code to put all remaining elements in the final output dimension.

%!shared A
%! A = [ ...
%!  1.00003+0.00000i, -0.68292+0.26406i, -0.57670+0.25291i,  0.34986+0.03335i;
%! -0.68292-0.26406i,  0.94539+0.00000i,  0.69006-0.03967i, -0.43847+0.38619i;
%! -0.57670-0.25291i,  0.69006+0.03967i,  0.95260+0.00000i, -0.34734+0.40728i;
%!  0.34986-0.03335i, -0.43847-0.38619i, -0.34734-0.40728i,  0.98356+0.00000i];
%!

%!test <*49904>
%! [Ainv, rcond] = inv (A);
%! assert (ishermitian (Ainv));
%! assert (A * Ainv, eye (4, 'double'), eps ('double') / rcond)

%!test <*49904>
%! [Ainv, rcond] = inv (single (A));
%! assert (ishermitian (Ainv));
%! assert (A * Ainv, eye (4, 'single'), eps ('single') / rcond)