boostorg/mp11
1
0
Fork 1
mirror of https://github.com/boostorg/mp11.git synced 2025-12-05 08:09:20 +01:00
Code Issues Packages Projects Releases Wiki Activity

Add mp_fold, mp_reverse_fold.

Browse Source
This commit is contained in:
Peter Dimov
2015-07-24 02:11:40 +03:00
parent 67ef9ab3fb
commit 5de3bf8810
4 changed files with 178 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
test/mp_fold.cpp Normal file
View File

@@ -0,0 +1,57 @@
// Copyright 2015 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/core/lightweight_test_trait.hpp>
#include <type_traits>
#include <tuple>
struct X1 {};
struct X2 {};
struct X3 {};
struct X4 {};
template<class T1, class T2> struct F {};
int main()
{
using boost::mp_list;
using boost::mp_fold;
{
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_fold<mp_list<>, void, F>, void>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_fold<mp_list<X1>, void, F>, F<void, X1>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_fold<mp_list<X1, X2>, void, F>, F<F<void, X1>, X2>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_fold<mp_list<X1, X2, X3>, void, F>, F<F<F<void, X1>, X2>, X3>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_fold<mp_list<X1, X2, X3, X4>, void, F>, F<F<F<F<void, X1>, X2>, X3>, X4>>));
}
{
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_fold<std::tuple<>, void, F>, void>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_fold<std::tuple<X1>, void, F>, F<void, X1>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_fold<std::tuple<X1, X2>, void, F>, F<F<void, X1>, X2>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_fold<std::tuple<X1, X2, X3>, void, F>, F<F<F<void, X1>, X2>, X3>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_fold<std::tuple<X1, X2, X3, X4>, void, F>, F<F<F<F<void, X1>, X2>, X3>, X4>>));
}
using boost::mp_push_back;
{
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_fold<std::tuple<X1, X2, X3, X4>, mp_list<>, mp_push_back>, mp_list<X1, X2, X3, X4>>));
}
using boost::mp_push_front;
{
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_fold<std::tuple<X1, X2, X3, X4>, mp_list<>, mp_push_front>, mp_list<X4, X3, X2, X1>>));
}
return boost::report_errors();
}