/*
Copyright (c) 2019 tevador

This file is part of RandomX.

RandomX 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
(at your option) any later version.

RandomX 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 RandomX.  If not, see<http://www.gnu.org/licenses/>.
*/

#pragma once

#include <cstring>
#include <cstdlib>
#include <iostream>
#include <fstream>

constexpr char hexmap[] = "0123456789abcdef";
inline void outputHex(std::ostream& os, const char* data, int length) {
	for (int i = 0; i < length; ++i) {
		os << hexmap[(data[i] & 0xF0) >> 4];
		os << hexmap[data[i] & 0x0F];
	}
}

inline void dump(const char* buffer, uint64_t count, const char* name) {
	std::ofstream fout(name, std::ios::out | std::ios::binary);
	fout.write(buffer, count);
	fout.close();
}

inline void readOption(const char* option, int argc, char** argv, bool& out) {
	for (int i = 0; i < argc; ++i) {
		if (strcmp(argv[i], option) == 0) {
			out = true;
			return;
		}
	}
	out = false;
}

inline void readIntOption(const char* option, int argc, char** argv, int& out, int defaultValue) {
	for (int i = 0; i < argc - 1; ++i) {
		if (strcmp(argv[i], option) == 0 && (out = atoi(argv[i + 1])) > 0) {
			return;
		}
	}
	out = defaultValue;
}

inline void readInt(int argc, char** argv, int& out, int defaultValue) {
	for (int i = 0; i < argc; ++i) {
		if (*argv[i] != '-' && (out = atoi(argv[i])) > 0) {
			return;
		}
	}
	out = defaultValue;
}