Function range

sources/covscript.cpp:341–358

// Internal Functions

	var range(vector &args)
	{
		switch (args.size()) {
		case 1:
			cs_impl::check_args<numeric>(args);
			return var::make_constant<range_type>(0, args[0].const_val<numeric>(), 1);
		case 2:
			cs_impl::check_args<numeric, numeric>(args);
			return var::make_constant<range_type>(args[0].const_val<numeric>(), args[1].const_val<numeric>(), 1);
		case 3:
			cs_impl::check_args<numeric, numeric, numeric>(args);
			return var::make_constant<range_type>(args[0].const_val<numeric>(), args[1].const_val<numeric>(),
			                                      args[2].const_val<numeric>());
		default:
			throw cs::runtime_error(
			    "Wrong size of the arguments. Expected 1, 2 or 3, provided " + std::to_string(args.size()));
		}
	}

	numeric to_integer(const var &val)
	{