libstdc++: Remove unused functions in std::variant implementation
These functions aren't used, and accessing the storage as a void* isn't
compatible with C++20 constexpr requirements anyway, so we're unlikely
to ever start using them in future.
libstdc++-v3/ChangeLog:
* include/std/variant (_Variant_storage::_M_storage()): Remove.
(__detail::__variant::__get_storage): Remove.
(variant): Remove friend declaration of __get_storage.
diff --git a/libstdc++-v3/include/std/variant b/libstdc++-v3/include/std/variant
index b85a89d..4a6826b 100644
--- a/libstdc++-v3/include/std/variant
+++ b/libstdc++-v3/include/std/variant
@@ -434,13 +434,6 @@
~_Variant_storage()
{ _M_reset(); }
- void*
- _M_storage() const noexcept
- {
- return const_cast<void*>(static_cast<const void*>(
- std::addressof(_M_u)));
- }
-
constexpr bool
_M_valid() const noexcept
{
@@ -472,13 +465,6 @@
void _M_reset() noexcept
{ _M_index = static_cast<__index_type>(variant_npos); }
- void*
- _M_storage() const noexcept
- {
- return const_cast<void*>(static_cast<const void*>(
- std::addressof(_M_u)));
- }
-
constexpr bool
_M_valid() const noexcept
{
@@ -809,11 +795,6 @@
: _FUN_type<_Tp, _Variant>
{ };
- // Returns the raw storage for __v.
- template<typename _Variant>
- void* __get_storage(_Variant&& __v) noexcept
- { return __v._M_storage(); }
-
template <typename _Maybe_variant_cookie, typename _Variant>
struct _Extra_visit_slot_needed
{
@@ -1690,10 +1671,6 @@
friend constexpr decltype(auto)
__detail::__variant::__get(_Vp&& __v) noexcept;
- template<typename _Vp>
- friend void*
- __detail::__variant::__get_storage(_Vp&& __v) noexcept;
-
#define _VARIANT_RELATION_FUNCTION_TEMPLATE(__OP) \
template<typename... _Tp> \
friend constexpr bool \
