mirror of
https://github.com/boostorg/compat.git
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Add bind_back
This commit is contained in:
Peter Dimov
72
include/boost/compat/bind_back.hpp
Normal file
72
include/boost/compat/bind_back.hpp
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@@ -0,0 +1,72 @@
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#ifndef BOOST_COMPAT_BIND_BACK_HPP_INCLUDED
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#define BOOST_COMPAT_BIND_BACK_HPP_INCLUDED
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// Copyright 2024 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/compat/invoke.hpp>
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#include <boost/compat/type_traits.hpp>
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#include <boost/compat/integer_sequence.hpp>
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#include <boost/compat/detail/returns.hpp>
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#include <boost/config.hpp>
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#include <boost/config/workaround.hpp>
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#include <tuple>
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#include <utility>
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namespace boost {
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namespace compat {
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namespace detail {
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#if BOOST_WORKAROUND(BOOST_MSVC, < 1910)
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# pragma warning(push)
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# pragma warning(disable: 4100) // 'a': unreferenced formal parameter
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#endif
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template<class F, class A, class... B, std::size_t... I>
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static constexpr auto invoke_bind_back_( F&& f, A&& a, index_sequence<I...>, B&&... b )
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BOOST_COMPAT_RETURNS( compat::invoke( std::forward<F>(f), std::forward<B>(b)..., std::get<I>( std::forward<A>(a) )... ) )
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#if BOOST_WORKAROUND(BOOST_MSVC, < 1910)
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# pragma warning(pop)
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#endif
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template<class F, class... A> class bind_back_
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{
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private:
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F f_;
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std::tuple<A...> a_;
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public:
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template<class F2, class... A2>
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constexpr bind_back_( F2&& f2, A2&&... a2 ): f_( std::forward<F2>(f2) ), a_( std::forward<A2>(a2)... ) {}
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public:
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template<class... B> BOOST_CXX14_CONSTEXPR auto operator()( B&&... b ) &
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BOOST_COMPAT_RETURNS( detail::invoke_bind_back_( f_, a_, make_index_sequence<sizeof...(A)>(), std::forward<B>(b)... ) )
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template<class... B> constexpr auto operator()( B&&... b ) const &
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BOOST_COMPAT_RETURNS( detail::invoke_bind_back_( f_, a_, make_index_sequence<sizeof...(A)>(), std::forward<B>(b)... ) )
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template<class... B> BOOST_CXX14_CONSTEXPR auto operator()( B&&... b ) &&
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BOOST_COMPAT_RETURNS( detail::invoke_bind_back_( std::move(f_), std::move(a_), make_index_sequence<sizeof...(A)>(), std::forward<B>(b)... ) )
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template<class... B> constexpr auto operator()( B&&... b ) const &&
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BOOST_COMPAT_RETURNS( detail::invoke_bind_back_( std::move(f_), std::move(a_), make_index_sequence<sizeof...(A)>(), std::forward<B>(b)... ) )
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};
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} // namespace detail
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template<class F, class... A> constexpr auto bind_back( F&& f, A&&... a ) -> detail::bind_back_< decay_t<F>, decay_t<A>... >
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{
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return { std::forward<F>(f), std::forward<A>(a)... };
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}
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} // namespace compat
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} // namespace boost
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#endif // BOOST_COMPAT_BIND_BACK_HPP_INCLUDED
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@@ -64,3 +64,8 @@ compile bind_front_mfn_constexpr_test.cpp ;
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compile bind_front_md_constexpr_test.cpp ;
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run integer_sequence_test.cpp ;
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run bind_back_fn_test.cpp ;
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run bind_back_obj_test.cpp ;
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run bind_back_mfn_test.cpp ;
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run bind_back_md_test.cpp ;
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57
test/bind_back_fn_test.cpp
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57
test/bind_back_fn_test.cpp
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@@ -0,0 +1,57 @@
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// Copyright 2024 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#if defined(__GNUC__) && __GNUC__ == 7
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# pragma GCC diagnostic ignored "-Wnoexcept-type"
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#endif
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#include <boost/compat/bind_back.hpp>
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#include <boost/core/lightweight_test.hpp>
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#include <memory>
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int f0()
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{
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return -1;
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}
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int f1( int x1 ) noexcept
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{
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return x1;
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}
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int f2( int x1, int x2 )
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{
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return 10*x1+x2;
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}
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int f3( int x1, int x2, int x3 ) noexcept
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{
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return 100*x1 + 10*x2 + x3;
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}
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int g( std::unique_ptr<int> p, std::unique_ptr<int> q )
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{
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return 10 * *p + *q;
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}
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int main()
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{
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BOOST_TEST_EQ( boost::compat::bind_back( f0 )(), -1 );
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BOOST_TEST_EQ( boost::compat::bind_back( f1 )( 1 ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( f2 )( 1, 2 ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( f3 )( 1, 2, 3 ), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( f1, 1 )(), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( f2, 1 )( 2 ), 21 );
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BOOST_TEST_EQ( boost::compat::bind_back( f3, 1 )( 2, 3 ), 231 );
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BOOST_TEST_EQ( boost::compat::bind_back( f2, 1, 2 )(), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( f3, 1, 2 )( 3 ), 312 );
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BOOST_TEST_EQ( boost::compat::bind_back( f3, 1, 2, 3 )(), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( g, std::unique_ptr<int>( new int(1) ) )( std::unique_ptr<int>( new int(2) ) ), 21 );
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return boost::report_errors();
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}
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101
test/bind_back_md_test.cpp
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101
test/bind_back_md_test.cpp
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@@ -0,0 +1,101 @@
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// Copyright 2024 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/compat/bind_back.hpp>
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#include <boost/core/lightweight_test.hpp>
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#include <functional>
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struct X
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{
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int m = -1;
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};
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struct Y: public virtual X
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{
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};
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int main()
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{
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{
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, X() )(), -1 );
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}
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{
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, Y() )(), -1 );
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}
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{
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X x;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, x )(), -1 );
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}
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{
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X x;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, &x )(), -1 );
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boost::compat::bind_back( &X::m, &x )() = +1;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, &x )(), +1 );
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}
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{
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X x;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, std::ref(x) )(), -1 );
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boost::compat::bind_back( &X::m, std::ref(x) )() = +1;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, std::ref(x) )(), +1 );
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}
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{
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X x;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, std::cref(x) )(), -1 );
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}
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{
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Y y;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, y )(), -1 );
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}
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{
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Y y;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, &y )(), -1 );
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boost::compat::bind_back( &X::m, &y )() = +1;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, &y )(), +1 );
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}
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{
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Y y;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, std::ref(y) )(), -1 );
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boost::compat::bind_back( &X::m, std::ref(y) )() = +1;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, std::ref(y) )(), +1 );
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}
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{
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Y y;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, std::cref(y) )(), -1 );
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}
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{
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X const x = {};
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, x )(), -1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, &x )(), -1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, std::ref(x) )(), -1 );
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}
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{
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Y const y = {};
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, y )(), -1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, &y )(), -1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::m, std::ref(y) )(), -1 );
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}
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return boost::report_errors();
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}
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308
test/bind_back_mfn_test.cpp
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308
test/bind_back_mfn_test.cpp
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@@ -0,0 +1,308 @@
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// Copyright 2024 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#if defined(__GNUC__) && __GNUC__ == 7
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# pragma GCC diagnostic ignored "-Wnoexcept-type"
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#endif
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#include <boost/compat/bind_back.hpp>
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#include <boost/core/lightweight_test.hpp>
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#include <functional>
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#include <memory>
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struct X
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{
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int f0()
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{
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return -1;
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}
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int f1( int x1 ) noexcept
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{
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return x1;
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}
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int f2( int x1, int x2 ) const
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{
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return 10*x1+x2;
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}
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int f3( int x1, int x2, int x3 ) const noexcept
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{
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return 100*x1 + 10*x2 + x3;
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}
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};
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struct Y: public virtual X
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{
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};
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int main()
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{
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{
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f0 )( X() ), -1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1 )( X(), 1 ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( X(), 1, 2 ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( X(), 1, 2, 3 ), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, X(), 1 )(), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, X(), 1, 2 )(), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, X(), 1, 2, 3 )(), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, 1 )( X() ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( X() ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( X() ), 123 );
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}
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{
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f0 )( Y() ), -1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1 )( Y(), 1 ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( Y(), 1, 2 ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( Y(), 1, 2, 3 ), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, Y(), 1 )(), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, Y(), 1, 2 )(), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, Y(), 1, 2, 3 )(), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, 1 )( Y() ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( Y() ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( Y() ), 123 );
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}
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{
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X x;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f0 )( x ), -1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1 )( x, 1 ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( x, 1, 2 ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( x, 1, 2, 3 ), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, x, 1 )(), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, x, 1, 2 )(), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, x, 1, 2, 3 )(), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, 1 )( x ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( x ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( x ), 123 );
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}
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{
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Y x;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f0 )( x ), -1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1 )( x, 1 ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( x, 1, 2 ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( x, 1, 2, 3 ), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, x, 1 )(), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, x, 1, 2 )(), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, x, 1, 2, 3 )(), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, 1 )( x ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( x ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( x ), 123 );
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}
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{
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X x;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f0 )( &x ), -1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1 )( &x, 1 ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( &x, 1, 2 ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( &x, 1, 2, 3 ), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, &x, 1 )(), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, &x, 1, 2 )(), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, &x, 1, 2, 3 )(), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, 1 )( &x ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( &x ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( &x ), 123 );
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}
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{
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Y x;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f0 )( &x ), -1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1 )( &x, 1 ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( &x, 1, 2 ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( &x, 1, 2, 3 ), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, &x, 1 )(), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, &x, 1, 2 )(), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, &x, 1, 2, 3 )(), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, 1 )( &x ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( &x ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( &x ), 123 );
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}
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{
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X x;
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f0 )( std::ref(x) ), -1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1 )( std::ref(x), 1 ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( std::ref(x), 1, 2 ), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( std::ref(x), 1, 2, 3 ), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, std::ref(x), 1 )(), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, std::ref(x), 1, 2 )(), 12 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, std::ref(x), 1, 2, 3 )(), 123 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, 1 )( std::ref(x) ), 1 );
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BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( std::ref(x) ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( std::ref(x) ), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
Y x;
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f0 )( std::ref(x) ), -1 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f1 )( std::ref(x), 1 ), 1 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( std::ref(x), 1, 2 ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( std::ref(x), 1, 2, 3 ), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, std::ref(x), 1 )(), 1 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, std::ref(x), 1, 2 )(), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, std::ref(x), 1, 2, 3 )(), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f1, 1 )( std::ref(x) ), 1 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( std::ref(x) ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( std::ref(x) ), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
X x;
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( std::cref(x), 1, 2 ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( std::cref(x), 1, 2, 3 ), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, std::cref(x), 1, 2 )(), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, std::cref(x), 1, 2, 3 )(), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( std::cref(x) ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( std::cref(x) ), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
Y x;
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( std::cref(x), 1, 2 ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( std::cref(x), 1, 2, 3 ), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, std::cref(x), 1, 2 )(), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, std::cref(x), 1, 2, 3 )(), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( std::cref(x) ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( std::cref(x) ), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
X const x = {};
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( x, 1, 2 ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( x, 1, 2, 3 ), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, x, 1, 2 )(), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, x, 1, 2, 3 )(), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( x ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( x ), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
Y const x = {};
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( x, 1, 2 ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( x, 1, 2, 3 ), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, x, 1, 2 )(), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, x, 1, 2, 3 )(), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( x ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( x ), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
X const x = {};
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( &x, 1, 2 ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( &x, 1, 2, 3 ), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, &x, 1, 2 )(), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, &x, 1, 2, 3 )(), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( &x ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( &x ), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
Y const x = {};
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( &x, 1, 2 ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( &x, 1, 2, 3 ), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, &x, 1, 2 )(), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, &x, 1, 2, 3 )(), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( &x ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( &x ), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
X const x = {};
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( std::ref(x), 1, 2 ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( std::ref(x), 1, 2, 3 ), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, std::ref(x), 1, 2 )(), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, std::ref(x), 1, 2, 3 )(), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( std::ref(x) ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( std::ref(x) ), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
Y const x = {};
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2 )( std::ref(x), 1, 2 ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3 )( std::ref(x), 1, 2, 3 ), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, std::ref(x), 1, 2 )(), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, std::ref(x), 1, 2, 3 )(), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f2, 1, 2 )( std::ref(x) ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( std::ref(x) ), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
std::unique_ptr<X> px( new X );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( std::move(px) ), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
std::unique_ptr<Y> px( new Y );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, 1, 2, 3 )( std::move(px) ), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
std::unique_ptr<X> px( new X );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, std::move(px), 1, 2, 3 )(), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
std::unique_ptr<Y> px( new Y );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( &X::f3, std::move(px), 1, 2, 3 )(), 123 );
|
||||
}
|
||||
|
||||
return boost::report_errors();
|
||||
}
|
||||
101
test/bind_back_obj_test.cpp
Normal file
101
test/bind_back_obj_test.cpp
Normal file
@@ -0,0 +1,101 @@
|
||||
// Copyright 2024 Peter Dimov
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// https://www.boost.org/LICENSE_1_0.txt
|
||||
|
||||
#include <boost/compat/bind_back.hpp>
|
||||
#include <boost/core/lightweight_test.hpp>
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/config/workaround.hpp>
|
||||
|
||||
struct F1
|
||||
{
|
||||
int operator()()
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
int operator()( int x1 ) noexcept
|
||||
{
|
||||
return x1;
|
||||
}
|
||||
|
||||
int operator()( int x1, int x2 ) const
|
||||
{
|
||||
return 10*x1+x2;
|
||||
}
|
||||
|
||||
int operator()( int x1, int x2, int x3 ) const noexcept
|
||||
{
|
||||
return 100*x1 + 10*x2 + x3;
|
||||
}
|
||||
};
|
||||
|
||||
struct F2
|
||||
{
|
||||
int operator()( int x1, int x2 ) &
|
||||
{
|
||||
return 100*x1 + 10*x2 + 1;
|
||||
}
|
||||
|
||||
int operator()( int x1, int x2 ) const &
|
||||
{
|
||||
return 100*x1 + 10*x2 + 2;
|
||||
}
|
||||
int operator()( int x1, int x2 ) &&
|
||||
{
|
||||
return 100*x1 + 10*x2 + 3;
|
||||
}
|
||||
int operator()( int x1, int x2 ) const &&
|
||||
{
|
||||
return 100*x1 + 10*x2 + 4;
|
||||
}
|
||||
};
|
||||
|
||||
int main()
|
||||
{
|
||||
{
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( F1() )(), -1 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( F1() )( 1 ), 1 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( F1() )( 1, 2 ), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( F1() )( 1, 2, 3 ), 123 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( F1(), 1 )(), 1 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( F1(), 1 )( 2 ), 21 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( F1(), 1 )( 2, 3 ), 231 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( F1(), 1, 2 )(), 12 );
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( F1(), 1, 2 )( 3 ), 312 );
|
||||
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( F1(), 1, 2, 3 )(), 123 );
|
||||
}
|
||||
|
||||
{
|
||||
BOOST_TEST_EQ( boost::compat::bind_back( F2(), 9 )( 8 ), 893 );
|
||||
}
|
||||
|
||||
{
|
||||
auto fn = boost::compat::bind_back( F2(), 9 );
|
||||
BOOST_TEST_EQ( fn( 8 ), 891 );
|
||||
}
|
||||
|
||||
{
|
||||
auto const fn = boost::compat::bind_back( F2(), 9 );
|
||||
BOOST_TEST_EQ( fn( 8 ), 892 );
|
||||
}
|
||||
|
||||
{
|
||||
auto fn = boost::compat::bind_back( F2(), 9 );
|
||||
BOOST_TEST_EQ( std::move( fn )( 8 ), 893 );
|
||||
}
|
||||
|
||||
#if !BOOST_WORKAROUND(BOOST_GCC, < 40900)
|
||||
|
||||
{
|
||||
auto const fn = boost::compat::bind_back( F2(), 9 );
|
||||
BOOST_TEST_EQ( std::move( fn )( 8 ), 894 );
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
return boost::report_errors();
|
||||
}
|
||||
@@ -6,6 +6,7 @@
|
||||
#include <boost/compat/shared_lock.hpp>
|
||||
#include <boost/compat/invoke.hpp>
|
||||
#include <boost/compat/bind_front.hpp>
|
||||
#include <boost/compat/bind_back.hpp>
|
||||
|
||||
int main()
|
||||
{
|
||||
|
||||
Reference in New Issue
Block a user