rb_exec_arg_addopt  492 include/ruby/intern.h int rb_exec_arg_addopt(struct rb_exec_arg *e, VALUE key, VALUE val);
rb_exec_arg_addopt 4526 io.c                       rb_exec_arg_addopt(eargp, INT2FIX(0), INT2FIX(arg.write_pair[0]));
rb_exec_arg_addopt 4527 io.c                       rb_exec_arg_addopt(eargp, INT2FIX(1), INT2FIX(arg.pair[1]));
rb_exec_arg_addopt 4534 io.c                       rb_exec_arg_addopt(eargp, INT2FIX(1), INT2FIX(arg.pair[1]));
rb_exec_arg_addopt 4540 io.c                       rb_exec_arg_addopt(eargp, INT2FIX(0), INT2FIX(arg.pair[0]));
rb_exec_arg_addopt 4612 io.c                       rb_exec_arg_addopt(eargp, INT2FIX(0), INT2FIX(write_pair[0]));
rb_exec_arg_addopt 4613 io.c                       rb_exec_arg_addopt(eargp, INT2FIX(1), INT2FIX(pair[1]));
rb_exec_arg_addopt 4620 io.c                       rb_exec_arg_addopt(eargp, INT2FIX(1), INT2FIX(pair[1]));
rb_exec_arg_addopt 4626 io.c                       rb_exec_arg_addopt(eargp, INT2FIX(0), INT2FIX(pair[0]));
rb_exec_arg_addopt 1466 process.c          return rb_exec_arg_addopt(e, key, val);
rb_exec_arg_addopt 1682 process.c              rb_exec_arg_addopt(&earg, ID2SYM(rb_intern("close_others")), Qfalse);
rb_exec_arg_addopt 2620 process.c              rb_exec_arg_addopt(&earg, ID2SYM(rb_intern("close_others")), v);