1 files changed, 47 insertions, 0 deletions
diff --git a/libs/local_function/example/n2529_this.cpp b/libs/local_function/example/n2529_this.cpp
new file mode 100644
index 000000000..1a954ad3e
--- /dev/null
+++ b/libs/local_function/example/n2529_this.cpp
@@ -0,0 +1,47 @@
+
+// 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/local_function.hpp>
+#include <boost/typeof/typeof.hpp>
+#include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP()
+#include <boost/detail/lightweight_test.hpp>
+#include <vector>
+#include <algorithm>
+
+struct v;
+BOOST_TYPEOF_REGISTER_TYPE(v) // Register before `bind this_` below.
+
+struct v {
+    std::vector<int> nums;
+    
+    v(const std::vector<int>& numbers): nums(numbers) {}
+
+    void change_sign_all(const std::vector<int>& indices) {
+        void BOOST_LOCAL_FUNCTION(bind this_, int i) { // Bind object `this`.
+            this_->nums.at(i) = -this_->nums.at(i);
+        } BOOST_LOCAL_FUNCTION_NAME(complement)
+
+        std::for_each(indices.begin(), indices.end(), complement);
+    }
+};
+
+int main(void) {
+    std::vector<int> n(3);
+    n[0] = 1; n[1] = 2; n[2] = 3;
+
+    std::vector<int> i(2);
+    i[0] = 0; i[1] = 2; // Will change n[0] and n[2] but not n[1].
+    
+    v vn(n);
+    vn.change_sign_all(i);
+    
+    BOOST_TEST(vn.nums.at(0) == -1);
+    BOOST_TEST(vn.nums.at(1) == 2);
+    BOOST_TEST(vn.nums.at(2) == -3);
+    return boost::report_errors();
+}
+