/** Signal data. * * @file * @author Steffen Vogel * @copyright 2014-2020, Institute for Automation of Complex Power Systems, EONERC * @license GNU General Public License (version 3) * * VILLASnode * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . *********************************************************************************/ #pragma once #include #include #include #include /** A signal value. * * Data is in host endianess! */ union signal_data { double f; /**< Floating point values. */ int64_t i; /**< Integer values. */ bool b; /**< Boolean values. */ std::complex z; /**< Complex values. */ signal_data() : i(0) { } static union signal_data nan() { union signal_data d; d.f = std::numeric_limits::quiet_NaN(); return d; } bool is_nan() { return f == std::numeric_limits::quiet_NaN(); } }; /** Convert signal data from one description/format to another. */ void signal_data_cast(union signal_data *data, enum SignalType from, enum SignalType to); /** Print value of a signal to a character buffer. */ int signal_data_print_str(const union signal_data *data, enum SignalType type, char *buf, size_t len, int precision = 5); int signal_data_parse_str(union signal_data *data, enum SignalType type, const char *ptr, char **end); int signal_data_parse_json(union signal_data *data, enum SignalType type, json_t *json); json_t * signal_data_to_json(const union signal_data *data, enum SignalType type); void signal_data_set(union signal_data *data, enum SignalType type, double val);