diff options
Diffstat (limited to 'libstdc++-v3/include/std/ranges')
| -rw-r--r-- | libstdc++-v3/include/std/ranges | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/libstdc++-v3/include/std/ranges b/libstdc++-v3/include/std/ranges index 220a44e..b294349 100644 --- a/libstdc++-v3/include/std/ranges +++ b/libstdc++-v3/include/std/ranges @@ -197,11 +197,13 @@ namespace ranges constexpr explicit single_view(const _Tp& __t) + noexcept(is_nothrow_copy_constructible_v<_Tp>) : _M_value(__t) { } constexpr explicit single_view(_Tp&& __t) + noexcept(is_nothrow_move_constructible_v<_Tp>) : _M_value(std::move(__t)) { } @@ -211,6 +213,7 @@ namespace ranges requires constructible_from<_Tp, _Args...> constexpr explicit single_view(in_place_t, _Args&&... __args) + noexcept(is_nothrow_constructible_v<_Tp, _Args...>) : _M_value{in_place, std::forward<_Args>(__args)...} { } @@ -604,6 +607,7 @@ namespace views template<typename _Tp> constexpr auto operator()(_Tp&& __e) const + noexcept(noexcept(single_view<decay_t<_Tp>>(std::forward<_Tp>(__e)))) { return single_view<decay_t<_Tp>>(std::forward<_Tp>(__e)); } }; @@ -1022,6 +1026,7 @@ namespace views::__adaptor && requires { _S_fun(declval<_Tp>()); } constexpr ref_view(_Tp&& __t) + noexcept(noexcept(static_cast<_Range&>(std::declval<_Tp>()))) : _M_r(std::__addressof(static_cast<_Range&>(std::forward<_Tp>(__t)))) { } @@ -1069,12 +1074,25 @@ namespace views::__adaptor struct _All : __adaptor::_RangeAdaptorClosure { + template<typename _Range> + static constexpr bool + _S_noexcept() + { + if constexpr (view<decay_t<_Range>>) + return is_nothrow_constructible_v<decay_t<_Range>, _Range>; + else if constexpr (__detail::__can_ref_view<_Range>) + return true; + else + return noexcept(subrange{std::declval<_Range>()}); + } + template<viewable_range _Range> requires view<decay_t<_Range>> || __detail::__can_ref_view<_Range> || __detail::__can_subrange<_Range> constexpr auto operator()(_Range&& __r) const + noexcept(_S_noexcept<_Range>()) { if constexpr (view<decay_t<_Range>>) return std::forward<_Range>(__r); |