Edit: /usr/include/boost/mpi/inplace.hpp (1559B)
// Copyright (C) 2005-2006 Alain Miniussi
.
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// Message Passing Interface 1.1 -- Section 4. MPI Collectives
/** @file inplace.hpp
*
* This header provides helpers to indicate to MPI collective operation
* that a buffer can be use both as an input and output.
*/
#ifndef BOOST_MPI_INPLACE_HPP
#define BOOST_MPI_INPLACE_HPP
#include
#include
namespace boost { namespace mpi {
/**
* @brief Wrapper type to explicitly indicate that a input data
* can be overriden with an output value.
*/
template
struct inplace_t {
inplace_t(T& inout) : buffer(inout) {}
T& buffer;
};
template
struct inplace_t {
inplace_t(T* inout) : buffer(inout) {}
T* buffer;
};
/**
* @brief Wrapp a input data to indicate that it can be overriden
* with an ouput value.
* @param inout the contributing input value, it will be overriden
* with the output value where one is expected. If it is a pointer,
* the number of elements will be provided separatly.
* @returns The wrapped value or pointer.
*/
template
inplace_t
inplace(T& inout) {
return inplace_t(inout);
}
/**
* \overload
*/
template
inplace_t
inplace(T* inout) {
return inplace_t(inout);
}
} } // end namespace boost::mpi
#endif // BOOST_MPI_INPLACE_HPP