diff -r 9d566568d37c -r 2999fca726f3 src/RelpipeException.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/RelpipeException.cpp	Fri Nov 22 15:27:30 2019 +0100
@@ -0,0 +1,49 @@
+/**
+ * Relational pipes (library)
+ * Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
+ *
+ * This program 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;
+ *    version 3 of the License or (at your option)
+ *  - GNU General Public License as published by the Free Software Foundation;
+ *    version 2 of the License.
+ *
+ * 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 <http://www.gnu.org/licenses/>.
+ */
+
+#include "../include/relpipe/common/RelpipeException.h"
+
+namespace relpipe {
+namespace common {
+
+class RelpipeException::RelpipeExceptionInternal {
+public:
+	std::string message;
+
+	virtual ~RelpipeExceptionInternal() {
+	}
+
+};
+
+RelpipeException::RelpipeException(std::string message) {
+	internal = new RelpipeExceptionInternal();
+	internal->message = message;
+}
+
+RelpipeException::~RelpipeException() {
+	delete internal;
+}
+
+std::string RelpipeException::getMessge() {
+	return internal->message;
+}
+
+}
+}