maint: style check C++ files in libinterp/ ahead of 7.1 release. * Cell.cc, __eigs__.cc, __ichol__.cc, __ilu__.cc, __magick_read__.cc, __qp__.cc, bitfcns.cc, bsxfun.cc, c-file-ptr-stream.h, ccolamd.cc, cellfun.cc, data.cc, debug.cc, defun-int.h, dlmread.cc, event-manager.cc, fftn.cc, file-io.cc, ft-text-renderer.cc, gl2ps-print.cc, graphics.cc, graphics.in.h, gzfstream.cc, gzfstream.h, jsondecode.cc, jsonencode.cc, latex-text-renderer.cc, ls-mat5.cc, lu.cc, mex.cc, oct-stream.cc, oct-strstrm.cc, ordqz.cc, pager.h, pr-output.cc, qz.cc, schur.cc, sparse-xdiv.cc, sparse-xpow.cc, sparse.cc, stack-frame.h, strfns.cc, svd.cc, symrcm.cc, symscope.h, sysdep.cc, text-engine.h, text-renderer.h, tril.cc, variables.h, xdiv.h, __glpk__.cc, __init_fltk__.cc, __init_gnuplot__.cc, __voronoi__.cc, audiodevinfo.cc, cdef-class.cc, cdef-class.h, cdef-manager.cc, cdef-manager.h, cdef-method.cc, cdef-object.cc, ov-base-diag.cc, ov-base-diag.h, ov-base-int.cc, ov-base-int.h, ov-base-mat.cc, ov-base-mat.h, ov-base-scalar.h, ov-base-sparse.cc, ov-base-sparse.h, ov-base.h, ov-bool-mat.cc, ov-cell.cc, ov-cell.h, ov-class.cc, ov-class.h, ov-dld-fcn.cc, ov-intx.h, ov-lazy-idx.cc, ov-lazy-idx.h, ov-mex-fcn.h, ov-perm.cc, ov-perm.h, ov-range.cc, ov-re-mat.cc, ov-re-mat.h, ov-str-mat.h, ov-struct.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov.h, parse.h, pt-cell.cc, pt-stmt.cc, pt-tm-const.cc, pt-walk.cc: Style check C++ files in libinterp/ ahead of 7.1 release.

--- a/libinterp/corefcn/cellfun.cc	Mon Nov 29 11:15:15 2021 +0900
+++ b/libinterp/corefcn/cellfun.cc	Sun Nov 28 21:52:08 2021 -0800
@@ -423,7 +423,7 @@
 
   if (func.is_string ())
     {
-      retval = try_cellfun_internal_ops<boolNDArray,NDArray> (args, nargin);
+      retval = try_cellfun_internal_ops<boolNDArray, NDArray> (args, nargin);
 
       if (! retval.empty ())
         return retval;
@@ -1919,7 +1919,7 @@
 template <typename container>
 static void
 prepare_idx (container *idx, int idim, int nd,
-             const Array<octave_idx_type>* d)
+             const Array<octave_idx_type> *d)
 {
   octave_idx_type nidx = (idim < nd ? d[idim].numel () : 1);
   if (nidx == 1)
@@ -1986,7 +1986,7 @@
           {
             octave_quit ();
 
-            retval.xelem (i,j) = a.index (ridx[i], cidx[j]);
+            retval.xelem (i, j) = a.index (ridx[i], cidx[j]);
           }
     }