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msvc-14.0 can not deal with using declaration

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This commit is contained in:
Oliver Kowalke
2015-12-16 19:33:48 +01:00
parent af9b2cef21
commit 710fec359c
1 changed files with 14 additions and 12 deletions
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26
include/boost/fiber/future/async.hpp
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@@ -19,21 +19,17 @@
namespace boost {
namespace fibers {
namespace detail {
// based on libstdc++-v3
template< typename Fn, typename ... Args >
using result_of =
future<
typename std::result_of<
typename std::decay< Fn >::type( typename std::decay< Args >::type ... )
>::type;
}
template< typename Fn, typename ... Args >
future< detail::result_of< Fn, Args ... > >
>::type
>
async( Fn && fn, Args && ... args) {
using result_t = detail::result_of< Fn, Args ... >;
typedef typename std::result_of<
typename std::decay< Fn >::type( typename std::decay< Args >::type ... )
>::type result_t;
packaged_task< result_t( Args ... ) > pt{ std::forward< Fn >( fn) };
future< result_t > f{ pt.get_future() };
@@ -42,9 +38,15 @@ async( Fn && fn, Args && ... args) {
}
template< typename StackAllocator, typename Fn, typename ... Args >
future< detail::result_of< Fn, Args ... > >
future<
typename std::result_of<
typename std::decay< Fn >::type( typename std::decay< Args >::type ... )
>::type
>
async( std::allocator_arg_t, StackAllocator salloc, Fn && fn, Args && ... args) {
using result_t = detail::result_of< Fn, Args ... >;
typedef typename std::result_of<
typename std::decay< Fn >::type( typename std::decay< Args >::type ... )
>::type result_t;
packaged_task< result_t( Args ... ) > pt{
std::allocator_arg, salloc, std::forward< Fn >( fn) };