boost/compat
2
0
Fork 0
mirror of https://github.com/boostorg/compat.git synced 2026-01-19 04:02:16 +00:00
Code Issues Projects Releases Wiki Activity

Add invoke_r

Browse Source
This commit is contained in:
Peter Dimov
2024-04-06 19:03:58 +03:00
parent 87e758f538
commit 984d6b39da
6 changed files with 490 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
include/boost/compat/invoke.hpp
View File

@@ -61,6 +61,24 @@ template<class F, class... A> struct is_nothrow_invocable: conditional_t< is_inv
#endif #endif
// invoke_r
template<class R, class F, class... A, class En = enable_if_t<
std::is_void<R>::value && is_invocable<F, A...>::value>>
constexpr R invoke_r( F&& f, A&&... a )
noexcept( is_nothrow_invocable<F, A...>::value )
{
compat::invoke( std::forward<F>(f), std::forward<A>(a)... );
}
template<class R, class F, class... A, class = void, class En = enable_if_t<
!std::is_void<R>::value && std::is_convertible< invoke_result_t<F, A...>, R >::value >>
constexpr R invoke_r( F&& f, A&&... a )
noexcept( noexcept( static_cast<R>( compat::invoke( std::forward<F>(f), std::forward<A>(a)... ) ) ) )
{
return compat::invoke( std::forward<F>(f), std::forward<A>(a)... );
}
} // namespace compat } // namespace compat
} // namespace boost } // namespace boost

5
test/Jamfile
View File

@@ -74,3 +74,8 @@ compile bind_back_fn_constexpr_test.cpp ;
compile bind_back_obj_constexpr_test.cpp ; compile bind_back_obj_constexpr_test.cpp ;
compile bind_back_mfn_constexpr_test.cpp ; compile bind_back_mfn_constexpr_test.cpp ;
compile bind_back_md_constexpr_test.cpp ; compile bind_back_md_constexpr_test.cpp ;
run invoke_r_fn_test.cpp ;
run invoke_r_obj_test.cpp ;
run invoke_r_mfn_test.cpp ;
run invoke_r_md_test.cpp ;

45
test/invoke_r_fn_test.cpp Normal file
View File

@@ -0,0 +1,45 @@
// Copyright 2024 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#if defined(__GNUC__) && __GNUC__ == 7
# pragma GCC diagnostic ignored "-Wnoexcept-type"
#endif
#include <boost/compat/invoke.hpp>
#include <boost/core/lightweight_test.hpp>
int f0()
{
return -1;
}
int f1( int x1 ) noexcept
{
return x1;
}
int f2( int x1, int x2 )
{
return 10*x1+x2;
}
int f3( int x1, int x2, int x3 ) noexcept
{
return 100*x1 + 10*x2 + x3;
}
int main()
{
BOOST_TEST_EQ( boost::compat::invoke_r<long>( f0 ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( f1, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( f2, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( f3, 1, 2, 3 ), 123 );
boost::compat::invoke_r<void>( f0 );
boost::compat::invoke_r<void>( f1, 1 );
boost::compat::invoke_r<void>( f2, 1, 2 );
boost::compat::invoke_r<void>( f3, 1, 2, 3 );
return boost::report_errors();
}

131
test/invoke_r_md_test.cpp Normal file
View File

@@ -0,0 +1,131 @@
// Copyright 2024 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/compat/invoke.hpp>
#include <boost/core/lightweight_test.hpp>
#include <functional>
struct X
{
int m = -1;
};
struct Y: public virtual X
{
};
int main()
{
{
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, X() ), -1 );
}
{
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, Y() ), -1 );
}
{
X x;
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, x ), -1 );
boost::compat::invoke_r<int&>( &X::m, x ) = +1;
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, x ), +1 );
boost::compat::invoke_r<void>( &X::m, x );
}
{
X x;
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, &x ), -1 );
boost::compat::invoke_r<int&>( &X::m, &x ) = +1;
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, &x ), +1 );
boost::compat::invoke_r<void>( &X::m, &x );
}
{
X x;
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, std::ref(x) ), -1 );
boost::compat::invoke_r<int&>( &X::m, std::ref(x) ) = +1;
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, std::ref(x) ), +1 );
boost::compat::invoke_r<void>( &X::m, std::ref(x) );
}
{
X x;
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, std::cref(x) ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, std::cref(x) ), -1 );
boost::compat::invoke_r<void>( &X::m, std::cref(x) );
}
{
Y y;
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, y ), -1 );
boost::compat::invoke_r<int&>( &X::m, y ) = +1;
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, y ), +1 );
boost::compat::invoke_r<void>( &X::m, y );
}
{
Y y;
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, &y ), -1 );
boost::compat::invoke_r<int&>( &X::m, &y ) = +1;
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, &y ), +1 );
boost::compat::invoke_r<void>( &X::m, &y );
}
{
Y y;
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, std::ref(y) ), -1 );
boost::compat::invoke_r<int&>( &X::m, std::ref(y) ) = +1;
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, std::ref(y) ), +1 );
boost::compat::invoke_r<void>( &X::m, std::ref(y) );
}
{
Y y;
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, std::cref(y) ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, std::cref(y) ), -1 );
boost::compat::invoke_r<void>( &X::m, std::cref(y) );
}
{
X const x = {};
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, x ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, x ), -1 );
boost::compat::invoke_r<void>( &X::m, x );
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, &x ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, &x ), -1 );
boost::compat::invoke_r<void>( &X::m, &x );
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, std::ref(x) ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, std::ref(x) ), -1 );
boost::compat::invoke_r<void>( &X::m, std::ref(x) );
}
{
Y const y = {};
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, y ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, y ), -1 );
boost::compat::invoke_r<void>( &X::m, y );
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, &y ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, &y ), -1 );
boost::compat::invoke_r<void>( &X::m, &y );
BOOST_TEST_EQ( boost::compat::invoke_r<int const&>( &X::m, std::ref(y) ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::m, std::ref(y) ), -1 );
boost::compat::invoke_r<void>( &X::m, std::ref(y) );
}
return boost::report_errors();
}

211
test/invoke_r_mfn_test.cpp Normal file
View File

@@ -0,0 +1,211 @@
// Copyright 2024 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#if defined(__GNUC__) && __GNUC__ == 7
# pragma GCC diagnostic ignored "-Wnoexcept-type"
#endif
#include <boost/compat/invoke.hpp>
#include <boost/core/lightweight_test.hpp>
#include <functional>
struct X
{
int f0()
{
return -1;
}
int f1( int x1 ) noexcept
{
return x1;
}
int f2( int x1, int x2 ) const
{
return 10*x1+x2;
}
int f3( int x1, int x2, int x3 ) const noexcept
{
return 100*x1 + 10*x2 + x3;
}
};
struct Y: public virtual X
{
};
int main()
{
{
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f0, X() ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f1, X(), 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, X(), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, X(), 1, 2, 3 ), 123 );
}
{
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f0, Y() ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f1, Y(), 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, Y(), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, Y(), 1, 2, 3 ), 123 );
}
{
X x;
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f0, x ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f1, x, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, x, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, x, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f0, &x ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f1, &x, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, &x, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, &x, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f0, std::ref(x) ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f1, std::ref(x), 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, std::ref(x), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, std::ref(x), 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, std::cref(x), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, std::cref(x), 1, 2, 3 ), 123 );
}
{
Y y;
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f0, y ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f1, y, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, y, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, y, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f0, &y ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f1, &y, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, &y, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, &y, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f0, std::ref(y) ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f1, std::ref(y), 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, std::ref(y), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, std::ref(y), 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, std::cref(y), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, std::cref(y), 1, 2, 3 ), 123 );
}
{
X const x = {};
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, x, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, x, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, &x, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, &x, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, std::ref(x), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, std::ref(x), 1, 2, 3 ), 123 );
}
{
Y const y = {};
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, y, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, y, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, &y, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, &y, 1, 2, 3 ), 123 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f2, std::ref(y), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( &X::f3, std::ref(y), 1, 2, 3 ), 123 );
}
{
boost::compat::invoke_r<void>( &X::f0, X() );
boost::compat::invoke_r<void>( &X::f1, X(), 1 );
boost::compat::invoke_r<void>( &X::f2, X(), 1, 2 );
boost::compat::invoke_r<void>( &X::f3, X(), 1, 2, 3 );
}
{
boost::compat::invoke_r<void>( &X::f0, Y() );
boost::compat::invoke_r<void>( &X::f1, Y(), 1 );
boost::compat::invoke_r<void>( &X::f2, Y(), 1, 2 );
boost::compat::invoke_r<void>( &X::f3, Y(), 1, 2, 3 );
}
{
X x;
boost::compat::invoke_r<void>( &X::f0, x );
boost::compat::invoke_r<void>( &X::f1, x, 1 );
boost::compat::invoke_r<void>( &X::f2, x, 1, 2 );
boost::compat::invoke_r<void>( &X::f3, x, 1, 2, 3 );
boost::compat::invoke_r<void>( &X::f0, &x );
boost::compat::invoke_r<void>( &X::f1, &x, 1 );
boost::compat::invoke_r<void>( &X::f2, &x, 1, 2 );
boost::compat::invoke_r<void>( &X::f3, &x, 1, 2, 3 );
boost::compat::invoke_r<void>( &X::f0, std::ref(x) );
boost::compat::invoke_r<void>( &X::f1, std::ref(x), 1 );
boost::compat::invoke_r<void>( &X::f2, std::ref(x), 1, 2 );
boost::compat::invoke_r<void>( &X::f3, std::ref(x), 1, 2, 3 );
boost::compat::invoke_r<void>( &X::f2, std::cref(x), 1, 2 );
boost::compat::invoke_r<void>( &X::f3, std::cref(x), 1, 2, 3 );
}
{
Y y;
boost::compat::invoke_r<void>( &X::f0, y );
boost::compat::invoke_r<void>( &X::f1, y, 1 );
boost::compat::invoke_r<void>( &X::f2, y, 1, 2 );
boost::compat::invoke_r<void>( &X::f3, y, 1, 2, 3 );
boost::compat::invoke_r<void>( &X::f0, &y );
boost::compat::invoke_r<void>( &X::f1, &y, 1 );
boost::compat::invoke_r<void>( &X::f2, &y, 1, 2 );
boost::compat::invoke_r<void>( &X::f3, &y, 1, 2, 3 );
boost::compat::invoke_r<void>( &X::f0, std::ref(y) );
boost::compat::invoke_r<void>( &X::f1, std::ref(y), 1 );
boost::compat::invoke_r<void>( &X::f2, std::ref(y), 1, 2 );
boost::compat::invoke_r<void>( &X::f3, std::ref(y), 1, 2, 3 );
boost::compat::invoke_r<void>( &X::f2, std::cref(y), 1, 2 );
boost::compat::invoke_r<void>( &X::f3, std::cref(y), 1, 2, 3 );
}
{
X const x = {};
boost::compat::invoke_r<void>( &X::f2, x, 1, 2 );
boost::compat::invoke_r<void>( &X::f3, x, 1, 2, 3 );
boost::compat::invoke_r<void>( &X::f2, &x, 1, 2 );
boost::compat::invoke_r<void>( &X::f3, &x, 1, 2, 3 );
boost::compat::invoke_r<void>( &X::f2, std::ref(x), 1, 2 );
boost::compat::invoke_r<void>( &X::f3, std::ref(x), 1, 2, 3 );
}
{
Y const y = {};
boost::compat::invoke_r<long>( &X::f2, y, 1, 2 );
boost::compat::invoke_r<long>( &X::f3, y, 1, 2, 3 );
boost::compat::invoke_r<long>( &X::f2, &y, 1, 2 );
boost::compat::invoke_r<long>( &X::f3, &y, 1, 2, 3 );
boost::compat::invoke_r<long>( &X::f2, std::ref(y), 1, 2 );
boost::compat::invoke_r<long>( &X::f3, std::ref(y), 1, 2, 3 );
}
return boost::report_errors();
}

80
test/invoke_r_obj_test.cpp Normal file
View File

@@ -0,0 +1,80 @@
// Copyright 2024 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/compat/invoke.hpp>
#include <boost/core/lightweight_test.hpp>
struct F
{
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;
}
};
int main()
{
{
BOOST_TEST_EQ( boost::compat::invoke_r<long>( F() ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( F(), 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( F(), 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( F(), 1, 2, 3 ), 123 );
}
{
F f;
BOOST_TEST_EQ( boost::compat::invoke_r<long>( f ), -1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( f, 1 ), 1 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( f, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( f, 1, 2, 3 ), 123 );
}
{
F const f = {};
BOOST_TEST_EQ( boost::compat::invoke_r<long>( f, 1, 2 ), 12 );
BOOST_TEST_EQ( boost::compat::invoke_r<long>( f, 1, 2, 3 ), 123 );
}
{
boost::compat::invoke_r<void>( F() );
boost::compat::invoke_r<void>( F(), 1 );
boost::compat::invoke_r<void>( F(), 1, 2 );
boost::compat::invoke_r<void>( F(), 1, 2, 3 );
}
{
F f;
boost::compat::invoke_r<void>( f );
boost::compat::invoke_r<void>( f, 1 );
boost::compat::invoke_r<void>( f, 1, 2 );
boost::compat::invoke_r<void>( f, 1, 2, 3 );
}
{
F const f = {};
boost::compat::invoke_r<void>( f, 1, 2 );
boost::compat::invoke_r<void>( f, 1, 2, 3 );
}
return boost::report_errors();
}