Enable/disable editor actions based on available editor windows * libgui/src/m-editor/file-editor.h, libgui/src/m-editor/file-editor.cc (class file_editor): Added remove_bookmark, close_all and close_others actions as class variables. (file_editor::check_actions): New functions. (file_editor::add_file_editor_tab): call check_actions. (file_editor::construct): call check_actions, use new class vars where added. (file_editor::handle_tab_remove_request): call check_actions.

#include <iostream>
#include <octave/oct.h>

int
main (void)
{
  std::cout << "Hello Octave world!\n";

  int n = 2;
  Matrix a_matrix = Matrix (n, n);

  for (octave_idx_type i = 0; i < n; i++)
    for (octave_idx_type j = 0; j < n; j++)
      a_matrix(i,j) = (i + 1) * 10 + (j + 1);

  std::cout << a_matrix;

  return 0;
}