Imported from /home/lorry/working-area/delta_boost-tarball/boost_1_54_0.tar.bz2.boost_1_54_0baserock/morph

1 files changed, 48 insertions, 0 deletions

diff --git a/libs/local_function/test/factorial_seq.cpp b/libs/local_function/test/factorial_seq.cpp
new file mode 100644
index 000000000..e7c242c27
--- /dev/null
+++ b/libs/local_function/test/factorial_seq.cpp
@@ -0,0 +1,48 @@
+
+// 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 <algorithm>
+#include <vector>
+
+struct calculator;
+BOOST_TYPEOF_REGISTER_TYPE(calculator) // Register before `bind this_` below.
+
+struct calculator {
+    std::vector<int> results;
+
+    void factorials(const std::vector<int>& nums) {
+        int BOOST_LOCAL_FUNCTION( (bind this_) (int num)
+                (bool recursion)(default false) ) {
+            int result = 0;
+            
+            if(num <= 0) result = 1;
+            else result = num * factorial(num - 1, true);
+
+            if(!recursion) this_->results.push_back(result);
+            return result;
+        } BOOST_LOCAL_FUNCTION_NAME(recursive factorial)
+    
+        std::for_each(nums.begin(), nums.end(), factorial);
+    }
+};
+
+int main(void) {
+    std::vector<int> v(3);
+    v[0] = 1; v[1] = 3; v[2] = 4;
+
+    calculator calc;
+    calc.factorials(v);
+    BOOST_TEST(calc.results[0] == 1);
+    BOOST_TEST(calc.results[1] == 6);
+    BOOST_TEST(calc.results[2] == 24);
+    return boost::report_errors();
+}
+