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-rw-r--r--libcxx/include/functional19
1 files changed, 17 insertions, 2 deletions
diff --git a/libcxx/include/functional b/libcxx/include/functional
index a13772f31ae..581f965b2b8 100644
--- a/libcxx/include/functional
+++ b/libcxx/include/functional
@@ -2618,18 +2618,33 @@ public:
template <class ..._Args>
_LIBCPP_INLINE_VISIBILITY
- auto operator()(_Args&& ...__args)
+ auto operator()(_Args&& ...__args) &
noexcept(noexcept(!_VSTD::invoke(__fd, _VSTD::forward<_Args>(__args)...)))
-> decltype(!_VSTD::invoke(__fd, _VSTD::forward<_Args>(__args)...))
{ return !_VSTD::invoke(__fd, _VSTD::forward<_Args>(__args)...); }
template <class ..._Args>
_LIBCPP_INLINE_VISIBILITY
- auto operator()(_Args&& ...__args) const
+ auto operator()(_Args&& ...__args) &&
+ noexcept(noexcept(!_VSTD::invoke(_VSTD::move(__fd), _VSTD::forward<_Args>(__args)...)))
+ -> decltype(!_VSTD::invoke(_VSTD::move(__fd), _VSTD::forward<_Args>(__args)...))
+ { return !_VSTD::invoke(_VSTD::move(__fd), _VSTD::forward<_Args>(__args)...); }
+
+ template <class ..._Args>
+ _LIBCPP_INLINE_VISIBILITY
+ auto operator()(_Args&& ...__args) const&
noexcept(noexcept(!_VSTD::invoke(__fd, _VSTD::forward<_Args>(__args)...)))
-> decltype(!_VSTD::invoke(__fd, _VSTD::forward<_Args>(__args)...))
{ return !_VSTD::invoke(__fd, _VSTD::forward<_Args>(__args)...); }
+
+ template <class ..._Args>
+ _LIBCPP_INLINE_VISIBILITY
+ auto operator()(_Args&& ...__args) const&&
+ noexcept(noexcept(!_VSTD::invoke(_VSTD::move(__fd), _VSTD::forward<_Args>(__args)...)))
+ -> decltype(!_VSTD::invoke(_VSTD::move(__fd), _VSTD::forward<_Args>(__args)...))
+ { return !_VSTD::invoke(_VSTD::move(__fd), _VSTD::forward<_Args>(__args)...); }
+
private:
template <class _RawFunc,
class = enable_if_t<!is_same<decay_t<_RawFunc>, __not_fn_imp>::value>>
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