+ lib utils

src/utils/doPopStat.h

@@ -0,0 +1,75 @@
+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+//-----------------------------------------------------------------------------
+// doPopStat.h
+// (c) Maarten Keijzer, Marc Schoenauer and GeNeura Team, 2001
+/*
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library 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
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Contact: todos@geneura.ugr.es, http://geneura.ugr.es
+             Marc.Schoenauer@polytechnique.fr
+             mkeijzer@dhi.dk
+             Johann Dreo <johann.dreo@thalesgroup.com>
+             Caner Candan <caner.candan@thalesgroup.com>
+ */
+//-----------------------------------------------------------------------------
+
+/** WARNING: this file contains 2 classes:
+
+eoPopString and eoSortedPopString
+
+that transform the population into a std::string
+that can be used to dump to the screen
+*/
+
+#ifndef _doPopStat_h
+#define _doPopStat_h
+
+#include <utils/eoStat.h>
+
+
+/** Thanks to MS/VC++, eoParam mechanism is unable to handle std::vectors of stats.
+This snippet is a workaround:
+This class will "print" a whole population into a std::string - that you can later
+send to any stream
+This is the plain version - see eoPopString for the Sorted version
+
+Note: this Stat should probably be used only within eoStdOutMonitor, and not
+inside an eoFileMonitor, as the eoState construct will work much better there.
+*/
+template <class EOT>
+class doPopStat : public eoStat<EOT, std::string>
+{
+public:
+
+    using eoStat<EOT, std::string>::value;
+
+    /** default Ctor, void std::string by default, as it appears
+	on the description line once at beginning of evolution. and
+	is meaningless there. _howMany defaults to 0, that is, the whole
+	population*/
+    doPopStat(std::string _desc ="")
+	: eoStat<EOT, std::string>("", _desc) {}
+
+    /** Fills the value() of the eoParam with the dump of the population. */
+    void operator()(const eoPop<EOT>& _pop)
+    {
+	std::ostringstream os;
+	os << _pop;
+	value() = os.str();
+    }
+};
+
+#endif // !_doPopStat_h