Added LocalFunction examples.

[SVN r77021]

example/profile_lambda.cpp

@@ -0,0 +1,46 @@
+
+// Copyright (C) 2009-2012 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0
+// (see accompanying file LICENSE_1_0.txt or a copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// Home at http://www.boost.org/libs/local_function
+
+#include <boost/config.hpp>
+#ifndef BOOST_NO_LAMBDAS
+
+#include <boost/chrono.hpp>
+#include <vector>
+#include <algorithm>
+#include <iostream>
+#include "profile_helpers.hpp"
+
+int main(int argc, char* argv[]) {
+    unsigned long size = 0, trials = 0;
+    profile::args(argc, argv, size, trials);
+
+    double sum = 0.0;
+    int factor = 1;
+
+    std::vector<double> v(size);
+    std::fill(v.begin(), v.end(), 1.0);
+
+    boost::chrono::duration<double> trials_sec;
+    for(unsigned long i = 0; i < trials; ++i) {
+        boost::chrono::system_clock::time_point start =
+                boost::chrono::system_clock::now();
+        std::for_each(v.begin(), v.end(), [&sum, factor](const double& num) {
+            sum += factor * num;
+        });
+        trials_sec += boost::chrono::system_clock::now() - start;
+    }
+
+    profile::display(size, trials, sum, trials_sec.count());
+    return 0;
+}
+
+#else // NO_LAMBDAS
+
+int main(void) { return 0; } // Trivial program.
+
+#endif // NO_LAMBDAS
+