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fixed digraphs in optional refs

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This commit is contained in:
Andrzej Krzemienski
2015-10-05 23:50:11 +02:00
parent cf4b2e8b16
commit e7cab0e233
1 changed files with 7 additions and 7 deletions
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12
include/boost/optional/detail/optional_reference_spec.hpp
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@ -28,29 +28,29 @@ void prevent_binding_rvalue()
}
template <class T>
typename boost::remove_reference<T>::type& forward_reference(T&& r)
BOOST_DEDUCED_TYPENAME boost::remove_reference<T>::type& forward_reference(T&& r)
{
BOOST_STATIC_ASSERT_MSG(boost::is_lvalue_reference<T>::value,
"binding rvalue references to optional lvalue references is disallowed");
return boost::forward<T>(r);
}
template <typename T>
template <class T>
struct is_optional_
{
static const bool value = false;
};
template <typename U>
template <class U>
struct is_optional_< ::boost::optional<U> >
{
static const bool value = true;
};
template <typename T>
template <class T>
struct is_no_optional
{
static const bool value = !is_optional_<typename boost::decay<T>::type>::value;
static const bool value = !is_optional_<BOOST_DEDUCED_TYPENAME boost::decay<T>::type>::value;
};
} // namespace detail
@ -90,7 +90,7 @@ public:
T& value() const { return ptr_ ? *ptr_ : (throw_exception(bad_optional_access()), *ptr_); }
template <typename F>
template <class F>
T& value_or_eval(F f) const { return ptr_ ? *ptr_ : detail::forward_reference(f()); }
bool operator!() const BOOST_NOEXCEPT { return ptr_ == 0; }