forked from boostorg/mp11
Feature/lambda (#96)
* added mp_lambda * launched GHA * skipped ICE-generating test in GCC < 4.9 * fixed GCC detection in workaround * test-skipped and documented GCC 4.8 bug * added missing s/const/CONST * tempirarily expanded macro to isolate problem with VS2017 * tried workaround for C3546 * tried another workaround * wrapped workaround up * dropped unnecessary devoiding in variadic (member) functions * temporary code to check VS compliance wrt function qualifiers * removed version printer * checked compliance with qualified (member) function partial specialization * checked each partial specialization individually * wrapped up VS2013 investigation * left variadics out of VS2013 * skipped noexcept-involving tests for VS2013 (keyword not supported) * given up on VS2013 support for mp_lambda * dropped lambda_devoid_args
This commit is contained in:
joaquintides
GitHub
154
test/mp_lambda.cpp
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154
test/mp_lambda.cpp
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// Copyright 2024 Joaquin M Lopez Munoz.
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//
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// Distributed under the Boost Software License, Version 1.0.
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//
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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#include <boost/mp11/detail/config.hpp>
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#if BOOST_MP11_WORKAROUND(BOOST_MP11_MSVC, <= 1800)
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#pragma message("Test skipped because mp_lambda is not supported")
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int main() {}
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#else
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#include <boost/mp11/lambda.hpp>
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#include <boost/core/lightweight_test_trait.hpp>
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#include <tuple>
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#include <type_traits>
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#include <utility>
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struct X;
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enum E {};
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#if BOOST_MP11_WORKAROUND(BOOST_MP11_GCC, < 40900)
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// A bug in GCC < 4.9 results in const/volatile qualifiers being stripped
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#define CONST
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#define VOLATILE
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#else
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#define CONST const
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#define VOLATILE volatile
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#endif
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int main()
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{
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using namespace boost::mp11;
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<int>::fn<>, int>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<int>::fn<void>, int>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<int*>::fn<void>, int*>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<X>::fn<>, X>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<X>::fn<void>, X>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<X*>::fn<void>, X*>));
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#if !BOOST_MP11_WORKAROUND(BOOST_MP11_GCC, < 40900)
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// GCC < 4.9 ICEs when dealing with enum types
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<E>::fn<void>, E>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<E*>::fn<void>, E*>));
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#endif
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1>::fn<int>, int>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_2>::fn<void, int>, int>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<const _1>::fn<int>, CONST int>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<volatile _1>::fn<int>, VOLATILE int>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<const volatile _2>::fn<void, int>, CONST VOLATILE int>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1*>::fn<int>, int*>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<const _1*>::fn<int>, CONST int*>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<const _1* const>::fn<int>, CONST int* CONST>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<const _1*>::fn<void>, CONST void*>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1&>::fn<int>, int&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<volatile _1*&>::fn<int>, VOLATILE int*&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1&&>::fn<int>, int&&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<volatile _1*&&>::fn<int>, VOLATILE int*&&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1[]>::fn<int>, int[]>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1[5]>::fn<int>, int[5]>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1*[][5]>::fn<int>, int*[][5]>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2, _3)>::fn<int, char, double>, int(char, double)>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<int(_2)>::fn<void, char>, int(char)>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(void)>::fn<void>, void()>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2, _2*)>::fn<int, char>, int(char, char*)>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(*[])(_2)>::fn<int, char>, int(*[])(char)>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2, ...)>::fn<int, char>, int(char, ...)>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(X::*)(_2, ...)>::fn<int, char>, int(X::*)(char, ...)>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2)>::fn<int, char>, int(char)>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) const>::fn<int, char>, int(char) const>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) volatile>::fn<int, char>, int(char) volatile>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) const volatile>::fn<int, char>, int(char) const volatile>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2)&>::fn<int, char>, int(char)&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) const&>::fn<int, char>, int(char) const&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) volatile&>::fn<int, char>, int(char) volatile&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) const volatile&>::fn<int, char>, int(char) const volatile&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2)&&>::fn<int, char>, int(char)&&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) const&&>::fn<int, char>, int(char) const&&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) volatile&&>::fn<int, char>, int(char) volatile&&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) const volatile&&>::fn<int, char>, int(char) const volatile&&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) noexcept>::fn<int, char>, int(char) noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) const noexcept>::fn<int, char>, int(char) const noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) volatile noexcept>::fn<int, char>, int(char) volatile noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) const volatile noexcept>::fn<int, char>, int(char) const volatile noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2)& noexcept>::fn<int, char>, int(char)& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) const& noexcept>::fn<int, char>, int(char) const& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) volatile& noexcept>::fn<int, char>, int(char) volatile& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) const volatile& noexcept>::fn<int, char>, int(char) const volatile& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2)&& noexcept>::fn<int, char>, int(char)&& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) const&& noexcept>::fn<int, char>, int(char) const&& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) volatile&& noexcept>::fn<int, char>, int(char) volatile&& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1(_2) const volatile&& noexcept>::fn<int, char>, int(char) const volatile&& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2)>::fn<int, char, X>, int (X::*)(char)>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) const>::fn<int, char, X>, int (X::*)(char) const>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) volatile>::fn<int, char, X>, int (X::*)(char) volatile>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) const volatile>::fn<int, char, X>, int (X::*)(char) const volatile>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2)&>::fn<int, char, X>, int (X::*)(char)&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) const&>::fn<int, char, X>, int (X::*)(char) const&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) volatile&>::fn<int, char, X>, int (X::*)(char) volatile&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) const volatile&>::fn<int, char, X>, int (X::*)(char) const volatile&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2)&&>::fn<int, char, X>, int (X::*)(char)&&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) const&&>::fn<int, char, X>, int (X::*)(char) const&&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) volatile&&>::fn<int, char, X>, int (X::*)(char) volatile&&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) const volatile&&>::fn<int, char, X>, int (X::*)(char) const volatile&&>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) noexcept>::fn<int, char, X>, int (X::*)(char) noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) const noexcept>::fn<int, char, X>, int (X::*)(char) const noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) volatile noexcept>::fn<int, char, X>, int (X::*)(char) volatile noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) const volatile noexcept>::fn<int, char, X>, int (X::*)(char) const volatile noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2)& noexcept>::fn<int, char, X>, int (X::*)(char)& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) const& noexcept>::fn<int, char, X>, int (X::*)(char) const& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) volatile& noexcept>::fn<int, char, X>, int (X::*)(char) volatile& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) const volatile& noexcept>::fn<int, char, X>, int (X::*)(char) const volatile& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2)&& noexcept>::fn<int, char, X>, int (X::*)(char)&& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) const&& noexcept>::fn<int, char, X>, int (X::*)(char) const&& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) volatile&& noexcept>::fn<int, char, X>, int (X::*)(char) volatile&& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_3::*)(_2) const volatile&& noexcept>::fn<int, char, X>, int (X::*)(char) const volatile&& noexcept >));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<_1 (_2::*)>::fn<int, X>, int (X::*)>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<std::pair<_1, _2>>::fn<char, int>, std::pair<char, int>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<std::pair<_2, _1>>::fn<char, int>, std::pair<int, char>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<std::pair<const _1*, _2&>>::fn<char, int>, std::pair<CONST char*, int&>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<std::tuple<_1, _2>>::fn<char, int>, std::tuple<char, int>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<std::tuple<_2, _1>*>::fn<X, int>, std::tuple<int, X>*>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<std::tuple<const _1*, _2&>*>::fn<char, int>, std::tuple<CONST char*, int&>*>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<std::tuple<_3, std::pair<_2, _1>>>::fn<char, int, double>, std::tuple<double, std::pair<int, char>>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<std::tuple<_1, _2>>::fn<_2, _1>, std::tuple<_2, _1>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_lambda<mp_bind<std::pair, _1, _2>>::fn<char, int>, mp_bind<std::pair, _1, _2>>));
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//
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return boost::report_errors();
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}
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#endif
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