Add mp_transform_if, mp_map_update

test/Jamfile.v2

@@ -30,6 +30,7 @@ run mp_append.cpp : : : $(REQ) ;
 run mp_assign.cpp : : : $(REQ) ;
 run mp_clear.cpp : : : $(REQ) ;
 run mp_transform.cpp : : : $(REQ) ;
+run mp_transform_if.cpp : : : $(REQ) ;
 run mp_fill.cpp : : : $(REQ) ;
 run mp_count.cpp : : : $(REQ) ;
 run mp_count_if.cpp : : : $(REQ) ;
@@ -95,3 +96,4 @@ run mp_map_contains.cpp : : : $(REQ) ;
 run mp_map_insert.cpp : : : $(REQ) ;
 run mp_map_replace.cpp : : : $(REQ) ;
 run mp_map_erase.cpp : : : $(REQ) ;
+run mp_map_update.cpp : : : $(REQ) ;

test/mp_map_erase.cpp

@@ -18,7 +18,6 @@ int main()
 {
     using boost::mp_map_erase;
     using boost::mp_list;
-    using boost::mp_push_back;
 
     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_map_erase<mp_list<>, void>, mp_list<>>));
     BOOST_TEST_TRAIT_TRUE((std::is_same<mp_map_erase<std::tuple<>, int>, std::tuple<>>));

test/mp_map_update.cpp

@@ -0,0 +1,48 @@
+
+// Copyright 2016, 2017 Peter Dimov.
+//
+// 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 <boost/mp11/map.hpp>
+#include <boost/mp11/list.hpp>
+#include <boost/mp11/integral.hpp>
+#include <boost/core/lightweight_test_trait.hpp>
+#include <type_traits>
+#include <tuple>
+#include <utility>
+
+using boost::mp_int;
+
+template<class T> using inc = mp_int<T::value + 1>;
+
+int main()
+{
+    using boost::mp_map_update;
+    using boost::mp_list;
+
+    using M1 = mp_list<>;
+
+    using M2 = mp_map_update< M1, std::pair<char, mp_int<0>>, inc >;
+    BOOST_TEST_TRAIT_TRUE((std::is_same<M2, mp_list<std::pair<char, mp_int<0>>>>));
+
+    using M3 = mp_map_update< M2, std::pair<char, mp_int<0>>, inc >;
+    BOOST_TEST_TRAIT_TRUE((std::is_same<M3, mp_list<std::pair<char, mp_int<1>>>>));
+
+    using M4 = mp_map_update< M3, std::pair<int, mp_int<0>>, inc >;
+    BOOST_TEST_TRAIT_TRUE((std::is_same<M4, mp_list<std::pair<char, mp_int<1>>, std::pair<int, mp_int<0>>>>));
+
+    using M5 = mp_map_update< M4, std::pair<long, mp_int<0>>, inc >;
+    BOOST_TEST_TRAIT_TRUE((std::is_same<M5, mp_list<std::pair<char, mp_int<1>>, std::pair<int, mp_int<0>>, std::pair<long, mp_int<0>>>>));
+
+    using M6 = mp_map_update< M5, std::pair<long, mp_int<0>>, inc >;
+    BOOST_TEST_TRAIT_TRUE((std::is_same<M6, mp_list<std::pair<char, mp_int<1>>, std::pair<int, mp_int<0>>, std::pair<long, mp_int<1>>>>));
+
+    using M7 = mp_map_update< M6, std::pair<char, mp_int<0>>, inc >;
+    BOOST_TEST_TRAIT_TRUE((std::is_same<M7, mp_list<std::pair<char, mp_int<2>>, std::pair<int, mp_int<0>>, std::pair<long, mp_int<1>>>>));
+
+    return boost::report_errors();
+}

test/mp_transform_if.cpp

@@ -0,0 +1,46 @@
+
+//  Copyright 2015, 2017 Peter Dimov.
+//
+// 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 <boost/mp11/algorithm.hpp>
+#include <boost/mp11/list.hpp>
+#include <boost/mp11/integral.hpp>
+#include <boost/core/lightweight_test_trait.hpp>
+#include <type_traits>
+#include <tuple>
+#include <utility>
+
+struct X1 {};
+struct X2 {};
+struct X3 {};
+struct X4 {};
+
+template<class T> using add_pointer = T*;
+template<class T> using is_not_ref = boost::mp_not<std::is_reference<T>>;
+
+int main()
+{
+    using boost::mp_list;
+    using boost::mp_transform_if;
+
+    using L1 = mp_list<X1, X2&, X3 const, X4 const&>;
+
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, add_pointer, L1>, mp_list<X1*, X2&, X3 const*, X4 const&>>));
+
+    using L2 = std::tuple<X1, X2&, X3 const, X4 const&>;
+
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, add_pointer, L2>, std::tuple<X1*, X2&, X3 const*, X4 const&>>));
+
+    using L3 = std::pair<X1 const, X2&>;
+
+    BOOST_TEST_TRAIT_TRUE((std::is_same<mp_transform_if<is_not_ref, add_pointer, L3>, std::pair<X1 const*, X2&>>));
+
+    //
+
+    return boost::report_errors();
+}