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// (C) Copyright 2008-10 Anthony Williams
// (C) Copyright 2011-2015 Vicente J. Botet Escriba
//
// 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)
#ifndef BOOST_THREAD_FUTURES_WAIT_FOR_ALL_HPP
#define BOOST_THREAD_FUTURES_WAIT_FOR_ALL_HPP
#include <boost/thread/detail/config.hpp>
#include <boost/thread/futures/is_future_type.hpp>
#include <boost/core/enable_if.hpp>
namespace boost
{
template<typename Iterator>
typename boost::disable_if<is_future_type<Iterator>,void>::type wait_for_all(Iterator begin,Iterator end)
{
for(Iterator current=begin;current!=end;++current)
{
current->wait();
}
}
#ifdef BOOST_NO_CXX11_VARIADIC_TEMPLATES
template<typename F1,typename F2>
typename boost::enable_if<is_future_type<F1>,void>::type wait_for_all(F1& f1,F2& f2)
{
f1.wait();
f2.wait();
}
template<typename F1,typename F2,typename F3>
void wait_for_all(F1& f1,F2& f2,F3& f3)
{
f1.wait();
f2.wait();
f3.wait();
}
template<typename F1,typename F2,typename F3,typename F4>
void wait_for_all(F1& f1,F2& f2,F3& f3,F4& f4)
{
f1.wait();
f2.wait();
f3.wait();
f4.wait();
}
template<typename F1,typename F2,typename F3,typename F4,typename F5>
void wait_for_all(F1& f1,F2& f2,F3& f3,F4& f4,F5& f5)
{
f1.wait();
f2.wait();
f3.wait();
f4.wait();
f5.wait();
}
#else
template<typename F1, typename... Fs>
typename boost::enable_if<is_future_type<F1>,void>::type wait_for_all(F1& f1, Fs&... fs)
{
bool dummy[] = { (f1.wait(), true), (fs.wait(), true)... };
// prevent unused parameter warning
(void) dummy;
}
#endif // !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)}
}
#endif // header
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