[BL] Impl. of makeVectorUnique().

BaseLib/makeVectorUnique.h

+/**
+ *
+ * \copyright
+ * Copyright (c) 2012-2016, OpenGeoSys Community (http://www.opengeosys.org)
+ *            Distributed under a Modified BSD License.
+ *              See accompanying file LICENSE.txt or
+ *              http://www.opengeosys.org/project/license
+ *
+ */
+
+#ifndef MAKEVECTORUNIQUE_H
+#define MAKEVECTORUNIQUE_H
+
+#include <algorithm>
+#include <vector>
+
+namespace BaseLib
+{
+
+/// Make the entries of the std::vector \c v unique. The remaining entries will
+/// be sorted.
+template <typename T>
+void makeVectorUnique(std::vector<T>& v)
+{
+    std::sort(v.begin(), v.end());
+    auto it = std::unique(v.begin(), v.end());
+    v.erase(it, v.end());
+}
+
+} // end namespace BaseLib
+#endif