Edit: /usr/include/boost/core/swap.hpp (2123B)
// Copyright (C) 2007, 2008 Steven Watanabe, Joseph Gauterin, Niels Dekker
//
// Distributed under 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)
// For more information, see http://www.boost.org
#ifndef BOOST_CORE_SWAP_HPP
#define BOOST_CORE_SWAP_HPP
// Note: the implementation of this utility contains various workarounds:
// - swap_impl is put outside the boost namespace, to avoid infinite
// recursion (causing stack overflow) when swapping objects of a primitive
// type.
// - swap_impl has a using-directive, rather than a using-declaration,
// because some compilers (including MSVC 7.1, Borland 5.9.3, and
// Intel 8.1) don't do argument-dependent lookup when it has a
// using-declaration instead.
// - boost::swap has two template arguments, instead of one, to
// avoid ambiguity when swapping objects of a Boost type that does
// not have its own boost::swap overload.
#include
#include
#if __cplusplus >= 201103L || defined(BOOST_DINKUMWARE_STDLIB)
#include // for std::swap (C++11)
#else
#include // for std::swap (C++98)
#endif
#include // for std::size_t
namespace boost_swap_impl
{
// we can't use type_traits here
template struct is_const { enum _vt { value = 0 }; };
template struct is_const { enum _vt { value = 1 }; };
template
BOOST_GPU_ENABLED
void swap_impl(T& left, T& right)
{
using namespace std;//use std::swap if argument dependent lookup fails
swap(left,right);
}
template
BOOST_GPU_ENABLED
void swap_impl(T (& left)[N], T (& right)[N])
{
for (std::size_t i = 0; i < N; ++i)
{
::boost_swap_impl::swap_impl(left[i], right[i]);
}
}
}
namespace boost
{
template
BOOST_GPU_ENABLED
typename enable_if_c< !boost_swap_impl::is_const::value && !boost_swap_impl::is_const::value >::type
swap(T1& left, T2& right)
{
::boost_swap_impl::swap_impl(left, right);
}
}
#endif