// Copyright Alain Miniussi 2014.
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// Distributed under the Boost Software License, Version 1.0.
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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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// Authors: Alain Miniussi
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#ifndef BOOST_MPI_ANTIQUES_HPP
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#define BOOST_MPI_ANTIQUES_HPP
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#include <vector>
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// Support for some obsolette compilers
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namespace boost { namespace mpi {
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namespace detail {
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// Some old gnu compiler have no support for vector<>::data
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// Use this in the mean time, the cumbersome syntax should
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// serve as an incentive to get rid of this when those compilers
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// are dropped.
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template <typename T, typename A>
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T* c_data(std::vector<T,A>& v) { return v.empty() ? static_cast<T*>(0) : &(v[0]); }
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template <typename T, typename A>
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T const* c_data(std::vector<T,A> const& v) { return v.empty() ? static_cast<T const*>(0) : &(v[0]); }
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// Some old MPI implementation (OpenMPI 1.6 for example) have non
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// conforming API w.r.t. constness.
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// We choose to fix this trhough this converter in order to
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// explain/remember why we're doing this and remove it easilly
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// when support for those MPI is dropped.
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// The fix is as specific (un templatized, for one) as possible
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// in order to encourage it usage for the probleme at hand.
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// Problematic API include MPI_Send
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inline
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void *unconst(void const* addr) { return const_cast<void*>(addr); }
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} } }
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#endif
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