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

1 files changed, 68 insertions, 0 deletions

diff --git a/libs/lambda/test/bll_and_function.cpp b/libs/lambda/test/bll_and_function.cpp
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+//  bll_and_function.cpp  - The Boost Lambda Library -----------------------
+//
+// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
+// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+// For more information, see www.boost.org
+
+// test using BLL and boost::function
+
+#include <boost/test/minimal.hpp>    // see "Header Implementation Option"
+
+#include "boost/lambda/lambda.hpp"
+
+#include "boost/function.hpp"
+
+#include <vector>
+#include <map>
+#include <set>
+#include <string>
+
+
+using namespace boost::lambda;
+
+using namespace std;
+
+void test_function() {
+
+  boost::function<int (int, int)> f;
+  f = _1 + _2;
+
+ BOOST_CHECK(f(1, 2)== 3);
+
+ int i=1; int j=2;
+ boost::function<int& (int&, int)> g = _1 += _2;
+ g(i, j);
+ BOOST_CHECK(i==3);
+
+
+
+  int* sum = new int();
+  *sum = 0;
+  boost::function<int& (int)> counter = *sum += _1;
+  counter(5); // ok, sum* = 5;
+  BOOST_CHECK(*sum == 5);
+  delete sum; 
+  
+  // The next statement would lead to a dangling reference
+  // counter(3); // error, *sum does not exist anymore
+
+}
+
+
+int test_main(int, char *[]) {
+
+  test_function();
+
+  return 0;
+}
+
+
+
+
+
+