Update master with release-3.1.1

test/scope/lambda_tests1a.cpp

@@ -0,0 +1,71 @@
+/*=============================================================================
+    Copyright (c) 2001-2007 Joel de Guzman
+    Copyright (c) 2014      John Fletcher
+
+    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)
+==============================================================================*/
+#include <iostream>
+#include <cmath>
+#include <algorithm>
+#include <vector>
+
+#include <typeinfo>
+
+#include <boost/detail/lightweight_test.hpp>
+#include <boost/phoenix/core.hpp>
+#include <boost/phoenix/operator.hpp>
+#include <boost/phoenix/function.hpp>
+//#include <boost/phoenix/bind.hpp>
+#include <boost/phoenix/scope.hpp>
+
+int
+main()
+{
+    using boost::phoenix::lambda;
+    using boost::phoenix::let;
+    using boost::phoenix::ref;
+    using boost::phoenix::val;
+    using boost::phoenix::arg_names::_1;
+    using boost::phoenix::arg_names::_2;
+    using boost::phoenix::local_names::_a;
+    using boost::phoenix::local_names::_b;
+    //    using boost::phoenix::placeholders::arg1;
+
+    {
+        int x = 1;
+        int y = lambda[_1]()(x);
+        BOOST_TEST(x == y);
+    }
+
+    {
+        int x = 1, y = 10;
+        BOOST_TEST(
+            (_1 + lambda[_1 + 2])(x)(y) == 1+10+2
+        );
+        BOOST_TEST(
+            (_1 + lambda[-_1])(x)(y) == 1+-10
+        );
+    }
+
+    {
+        int x = 1, y = 10, z = 13;
+        BOOST_TEST(
+            lambda(_a = _1, _b = _2)
+            [
+                _1 + _a + _b
+            ]
+            (x, z)(y) == x + y + z
+        );
+    }
+
+    {
+        int x = 4;
+        int y = 5;
+        lambda(_a = _1)[_a = 555](x)();
+        BOOST_TEST(x == 555);
+        (void)y;
+    }
+
+    return boost::report_errors();
+}