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Add is_nothrow_invocable_r
This commit is contained in:
Peter Dimov
@@ -92,6 +92,27 @@ template<class R, class F, class... A> struct is_invocable_r:
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conditional_t< std::is_void<R>::value, std::true_type,
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detail::is_invocable_r_<R, F, A...> >> {};
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// is_nothrow_invocable_r
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#if BOOST_WORKAROUND(BOOST_MSVC, < 1910)
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template<class R, class F, class... A> struct is_nothrow_invocable_r: std::false_type {};
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#else
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namespace detail {
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template<class R, class F, class... A> struct is_nothrow_invocable_r_
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{
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using type = std::integral_constant<bool, noexcept( compat::invoke_r<R>( std::declval<F>(), std::declval<A>()... ) )>;
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};
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} // namespace detail
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template<class R, class F, class... A> struct is_nothrow_invocable_r: conditional_t< is_invocable_r<R, F, A...>::value, detail::is_nothrow_invocable_r_<R, F, A...>, std::false_type >::type {};
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#endif
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} // namespace compat
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} // namespace boost
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@@ -93,3 +93,4 @@ compile invoke_r_md_constexpr_test.cpp
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: <toolset>gcc-4.8:<build>no <toolset>gcc-4.9:<build>no ;
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run is_invocable_r_test.cpp ;
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run is_nothrow_invocable_r_test.cpp ;
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288
test/is_nothrow_invocable_r_test.cpp
Normal file
288
test/is_nothrow_invocable_r_test.cpp
Normal file
@@ -0,0 +1,288 @@
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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/core/lightweight_test_trait.hpp>
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#include <boost/config.hpp>
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#include <boost/config/workaround.hpp>
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struct F
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{
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void operator()()
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{
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}
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char operator()( char x1 ) noexcept
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{
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return x1;
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}
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int operator()( 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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double operator()( float x1, float x2, float 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 X
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{
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};
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struct Y
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{
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Y( int );
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Y( double ) noexcept;
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};
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int main()
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{
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using boost::compat::is_nothrow_invocable_r;
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// nonfunction
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, int, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, int, int, int> ));
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// function reference
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, void(&)()> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, char(&)(int), char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, int(&)(int, int), int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, double(&)(double, double, double), float, float, float> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, void(&)()> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, char(&)(int), char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, int(&)(int, int), int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, double(&)(double, double, double), float, float, float> ));
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#if defined(__cpp_noexcept_function_type)
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, void(&)() noexcept> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, char(&)(int) noexcept, char> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, int(&)(int, int) noexcept, int, int> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, double(&)(double, double, double) noexcept, float, float, float> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, void(&)() noexcept> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, char(&)(int) noexcept, char> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, int(&)(int, int) noexcept, int, int> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, double(&)(double, double, double) noexcept, float, float, float> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, void(&)() noexcept> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, char(&)(int) noexcept, char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, int(&)(int, int) noexcept, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, double(&)(double, double, double) noexcept, float, float, float> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, void(&)() noexcept> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, char(&)(int) noexcept, char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, int(&)(int, int) noexcept, int, int> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<Y, double(&)(double, double, double) noexcept, float, float, float> ));
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#endif
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, void(&)(), int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, char(&)(int)> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, char(&)(int), int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, void(&)(), int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, char(&)(int)> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, char(&)(int), int, int> ));
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// function pointer
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, void(*)()> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, char(*)(int), char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, int(*)(int, int), int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, double(*)(double, double, double), float, float, float> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, void(*)()> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, char(*)(int), char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, int(*)(int, int), int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, double(*)(double, double, double), float, float, float> ));
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#if defined(__cpp_noexcept_function_type)
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, void(*)() noexcept> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, char(*)(int) noexcept, char> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, int(*)(int, int) noexcept, int, int> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, double(*)(double, double, double) noexcept, float, float, float> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, void(*)() noexcept> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, char(*)(int) noexcept, char> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, int(*)(int, int) noexcept, int, int> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, double(*)(double, double, double) noexcept, float, float, float> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, void(*)() noexcept> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, char(*)(int) noexcept, char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, int(*)(int, int) noexcept, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, double(*)(double, double, double) noexcept, float, float, float> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, void(*)() noexcept> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, char(*)(int) noexcept, char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, int(*)(int, int) noexcept, int, int> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<Y, double(*)(double, double, double) noexcept, float, float, float> ));
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#endif
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, void(*)(), int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, char(*)(int)> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, char(*)(int), int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, void(*)(), int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, char(*)(int)> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, char(*)(int), int, int> ));
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// object
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, F> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, F, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, F> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, F, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, F> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, F, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, F> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, F, int, int> ));
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#if !BOOST_WORKAROUND(BOOST_MSVC, < 1910)
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, F, char> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, F, float, float, float> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, F, char> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, F, float, float, float> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, F, char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, F, float, float, float> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, F, char> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<Y, F, float, float, float> ));
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#endif
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, F, int, int, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, F const> ));
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// member function pointer
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, void(X::*)(), X> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, char(X::*)(int), X, char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, int(X::*)(int, int), X, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, double(X::*)(double, double, double), X, float, float, float> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, void(X::*)(), X> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, char(X::*)(int), X, char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, int(X::*)(int, int), X, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, double(X::*)(double, double, double), X, float, float, float> ));
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#if defined(__cpp_noexcept_function_type)
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, void(X::*)() noexcept, X> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, char(X::*)(int) noexcept, X, char> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, int(X::*)(int, int) noexcept, X, int, int> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, double(X::*)(double, double, double) noexcept, X, float, float, float> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, void(X::*)() noexcept, X> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, char(X::*)(int) noexcept, X, char> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, int(X::*)(int, int) noexcept, X, int, int> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, double(X::*)(double, double, double) noexcept, X, float, float, float> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, void(X::*)() noexcept, X> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, char(X::*)(int) noexcept, X, char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, int(X::*)(int, int) noexcept, X, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, double(X::*)(double, double, double) noexcept, X, float, float, float> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, void(X::*)() noexcept, X> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, char(X::*)(int) noexcept, X, char> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, int(X::*)(int, int) noexcept, X, int, int> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<Y, double(X::*)(double, double, double) noexcept, X, float, float, float> ));
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#endif
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, void(X::*)()> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, void(X::*)(), int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, void(X::*)(), X, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, char(X::*)(int)> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, char(X::*)(int), int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, char(X::*)(int), X> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, char(X::*)(int), X, int, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, void(X::*)()> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, void(X::*)(), int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, void(X::*)(), X, int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, char(X::*)(int)> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, char(X::*)(int), int> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, char(X::*)(int), X> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, char(X::*)(int), X, int, int> ));
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// member data pointer
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#if !BOOST_WORKAROUND(BOOST_MSVC, < 1910)
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, int X::*, X> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, int X::*, X const> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, int X::*, X&> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, int X::*, X const&> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, int X::*, X*> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<long, int X::*, X const*> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, int X::*, X> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, int X::*, X const> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, int X::*, X&> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, int X::*, X const&> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, int X::*, X*> ));
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BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<void, int X::*, X const*> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, int X::*, X> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, int X::*, X const> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, int X::*, X&> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, int X::*, X const&> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, int X::*, X*> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<X, int X::*, X const*> ));
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BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, int X::*, X> ));
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||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, int X::*, X const> ));
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, int X::*, X&> ));
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, int X::*, X const&> ));
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, int X::*, X*> ));
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<Y, int X::*, X const*> ));
|
||||
|
||||
BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<Y, double X::*, X> ));
|
||||
BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<Y, double X::*, X const> ));
|
||||
BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<Y, double X::*, X&> ));
|
||||
BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<Y, double X::*, X const&> ));
|
||||
BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<Y, double X::*, X*> ));
|
||||
BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<Y, double X::*, X const*> ));
|
||||
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<int&, int X::*, X> ));
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<int&, int X::*, X const> ));
|
||||
BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<int&, int X::*, X&> ));
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<int&, int X::*, X const&> ));
|
||||
BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<int&, int X::*, X*> ));
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<int&, int X::*, X const*> ));
|
||||
|
||||
BOOST_TEST_TRAIT_TRUE(( is_nothrow_invocable_r<int&&, int X::*, X> ));
|
||||
|
||||
#endif
|
||||
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, int X::*> ));
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, int X::*, int> ));
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<long, int X::*, X, int> ));
|
||||
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, int X::*> ));
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, int X::*, int> ));
|
||||
BOOST_TEST_TRAIT_FALSE(( is_nothrow_invocable_r<void, int X::*, X, int> ));
|
||||
|
||||
return boost::report_errors();
|
||||
}
|
||||
Reference in New Issue
Block a user