1 // Copyright Alain Miniussi 2014. 2 // Distributed under the Boost Software License, Version 1.0. 3 // (See accompanying file LICENSE_1_0.txt or copy at 4 // http://www.boost.org/LICENSE_1_0.txt) 5 6 // Authors: Alain Miniussi 7 8 #ifndef BOOST_MPI_ANTIQUES_HPP 9 #define BOOST_MPI_ANTIQUES_HPP 10 11 #include <vector> 12 13 // Support for some obsolette compilers 14 15 namespace boost { namespace mpi { 16 namespace detail { 17 // Some old gnu compiler have no support for vector<>::data 18 // Use this in the mean time, the cumbersome syntax should 19 // serve as an incentive to get rid of this when those compilers 20 // are dropped. 21 template <typename T, typename A> c_data(std::vector<T,A> & v)22 T* c_data(std::vector<T,A>& v) { return v.empty() ? static_cast<T*>(0) : &(v[0]); } 23 24 template <typename T, typename A> c_data(std::vector<T,A> const & v)25 T const* c_data(std::vector<T,A> const& v) { return v.empty() ? static_cast<T const*>(0) : &(v[0]); } 26 27 // Some old MPI implementation (OpenMPI 1.6 for example) have non 28 // conforming API w.r.t. constness. 29 // We choose to fix this trhough this converter in order to 30 // explain/remember why we're doing this and remove it easilly 31 // when support for those MPI is dropped. 32 // The fix is as specific (un templatized, for one) as possible 33 // in order to encourage it usage for the probleme at hand. 34 // Problematic API include MPI_Send 35 inline unconst(void const * addr)36 void *unconst(void const* addr) { return const_cast<void*>(addr); } 37 38 } } } 39 40 #endif 41