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Resolve C++20 issue with fn == bind(...). Fixes #45.

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This commit is contained in:
Peter Dimov
2023-02-12 19:25:39 +02:00
parent bb841ed397
commit 5470c5fa32
2 changed files with 41 additions and 0 deletions
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2
include/boost/function.hpp
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@ -71,4 +71,6 @@
# undef BOOST_PP_ITERATION_PARAMS_1 # undef BOOST_PP_ITERATION_PARAMS_1
#endif #endif
#include <boost/function/detail/epilogue.hpp>
#endif // !defined(BOOST_FUNCTION_MAX_ARGS_DEFINED) || (BOOST_FUNCTION_MAX_ARGS_DEFINED != BOOST_FUNCTION_MAX_ARGS) #endif // !defined(BOOST_FUNCTION_MAX_ARGS_DEFINED) || (BOOST_FUNCTION_MAX_ARGS_DEFINED != BOOST_FUNCTION_MAX_ARGS)

39
include/boost/function/detail/epilogue.hpp Normal file
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@ -0,0 +1,39 @@
// Boost.Function library
#ifndef BOOST_FUNCTION_EPILOGUE_HPP
#define BOOST_FUNCTION_EPILOGUE_HPP
// Copyright 2023 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
// Resolve C++20 issue with fn == bind(...)
// https://github.com/boostorg/function/issues/45
#if !defined(BOOST_FUNCTION_NO_FUNCTION_TYPE_SYNTAX)
namespace boost
{
namespace _bi
{
template<class R, class F, class L> class bind_t;
} // namespace _bi
template<class S, class R, class F, class L> bool operator==( function<S> const& f, _bi::bind_t<R, F, L> const& b )
{
return f.contains( b );
}
template<class S, class R, class F, class L> bool operator!=( function<S> const& f, _bi::bind_t<R, F, L> const& b )
{
return !f.contains( b );
}
} // namespace boost
#endif // #if !defined(BOOST_FUNCTION_NO_FUNCTION_TYPE_SYNTAX)
#endif // #ifndef BOOST_FUNCTION_EPILOGUE_HPP