-#include <iostream>
-#include <string>
-#include <sstream>
+/** @file time_parser.cpp
+ *
+ * Time the parser. */
+
+/*
+ * GiNaC Copyright (C) 1999-2020 Johannes Gutenberg University Mainz, Germany
+ *
+ * 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 2 of the License, or
+ * (at your option) 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "ginac.h"
+#include "timer.h"
+using namespace GiNaC;
+
#include <cstddef>
#include <cstdlib>
-#include <vector>
+#include <iostream>
+#include <sstream>
#include <stdexcept>
-#include "ginac.h"
-#include "timer.h"
-extern void randomify_symbol_serials();
+#include <string>
+#include <vector>
using namespace std;
-using namespace GiNaC;
+
+extern void randomify_symbol_serials();
/// make a string "1+x+2*x^2+...+n*x^n"
static string prepare_str(const unsigned n, const char x = 'x')