print.h File Reference

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Functions
LEARNER::base_learner *	print_setup (VW::config::options_i &options, vw &all)

Function Documentation

print_setup()

LEARNER::base_learner* print_setup	(	VW::config::options_i &	options,
		vw &	all
	)

Definition at line 45 of file print.cc.

References VW::config::option_group_definition::add(), VW::config::options_i::add_and_parse(), LEARNER::init_learner(), learn(), LEARNER::make_base(), VW::config::make_option(), parameters::stride_shift(), and vw::weights.

Referenced by parse_reductions().

{
  bool print_option = false;
  option_group_definition new_options("Print psuedolearner");
  new_options.add(make_option("print", print_option).keep().help("print examples"));
  options.add_and_parse(new_options);

  if (!print_option)
    return nullptr;

  auto p = scoped_calloc_or_throw<print>();
  p->all = &all;

  all.weights.stride_shift(0);

  LEARNER::learner<print, example>& ret = init_learner(p, learn, learn, 1);
  return make_base(ret);
}