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-rw-r--r--src/boost/libs/local_function/example/profile_local_functor.cpp50
1 files changed, 50 insertions, 0 deletions
diff --git a/src/boost/libs/local_function/example/profile_local_functor.cpp b/src/boost/libs/local_function/example/profile_local_functor.cpp
new file mode 100644
index 000000000..abdef0bb7
--- /dev/null
+++ b/src/boost/libs/local_function/example/profile_local_functor.cpp
@@ -0,0 +1,50 @@
+
+// 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/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;
+
+ boost::chrono::system_clock::time_point start =
+ boost::chrono::system_clock::now();
+ struct local_add {
+ local_add(double& _sum, const int& _factor):
+ sum(_sum), factor(_factor) {}
+ inline void operator()(const double& num) {
+ sum += factor * num;
+ }
+ private:
+ double& sum;
+ const int& factor;
+ } add(sum, factor);
+ boost::chrono::duration<double> decl_sec =
+ boost::chrono::system_clock::now() - start;
+
+ 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();
+ for(unsigned long j = 0; j < v.size(); ++j) add(v[j]); // No for_each.
+ trials_sec += boost::chrono::system_clock::now() - start;
+ }
+
+ profile::display(size, trials, sum, trials_sec.count(), decl_sec.count());
+ return 0;
+}
+