Scilab: update STL set example

Fixes:
- use generic support of STL set
- add example for set of string

Examples/scilab/std_set/example.cpp

@@ -0,0 +1,61 @@
+/* File : example.cpp */
+
+#include "example.hxx"
+
+#include <iostream>
+#include <iterator>
+#include <algorithm>
+#include <numeric>
+#include <sstream>
+
+
+template <typename T>
+std::set<T> concat_set(const std::set<T> set, const std::set<T> other_set)
+{
+    std::set<T> out_set(set);
+    out_set.insert(other_set.begin(), other_set.end());
+    return out_set;
+}
+
+// int sets
+
+std::set<int> create_integer_set(const int rangemin, const int rangemax)
+{
+    std::set<int> out_set;
+    for (int i = rangemin; i <= rangemax; i++)
+    {
+        out_set.insert(i);
+    }
+    return out_set;
+}
+
+int sum_integer_set(const std::set<int>& set)
+{
+    return std::accumulate(set.begin(), set.end(), 0);
+}
+
+std::set<int> concat_integer_set(const std::set<int> set, const std::set<int> other_set)
+{
+    return concat_set<int>(set, other_set);
+}
+
+// string sets
+
+std::set<std::string> create_string_set(const char* svalue)
+{
+    std::set<std::string> out_set;
+    std::string str(svalue);
+
+    std::istringstream iss(str);
+    std::copy(std::istream_iterator<std::string>(iss),
+        std::istream_iterator<std::string>(),
+        std::inserter<std::set<std::string> >(out_set, out_set.begin()));
+
+    return out_set;
+}
+
+std::set<std::string> concat_string_set(const std::set<std::string> set, const std::set<std::string> other_set)
+{
+    return concat_set<std::string>(set, other_set);
+}
+