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stl_tree.h (_Rb_tree::_M_end()): Return _Base_ptr instead of downcasting.

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* include/bits/stl_tree.h (_Rb_tree::_M_end()): Return _Base_ptr
	instead of downcasting.
	(_Rb_tree::_M_copy): Change second parameter to _Base_ptr.
	(_Rb_tree::_M_lower_bound, _Rb_tree:_M_upper_bound): Likewise.
	(_Rb_tree::_S_iter): Remove.
	(_Rb_tree::_S_lower_bound_tr, _Rb_tree::_S_upper_bound_tr): Remove.
	(_Rb_tree::_M_find_tr(const _Kt&) const): Call _M_lower_bound_tr
	instead of _S_lower_bound_tr
	(_Rb_tree::_M_find_tr(const _Kt&)): Call const overload.
	(_Rb_tree::_M_lower_bound_tr(const _Kt&) const): Do the search here
	instead of calling _S_lower_bound_tr.
	(_Rb_tree::_M_lower_bound_tr(const _Kt&)): Call const overload.
	(_Rb_tree::_M_upper_bound_tr(const _Kt&) const): Do the search here
	instead of calling _S_upper_bound_tr.
	(_Rb_tree::_M_upper_bound_tr(const _Kt&)): Call const overload.
	(_Rb_tree::_M_equal_range_tr(const _Kt&)): Likewise.
	(_Rb_tree::equal_range): Use _Base_ptr for end pointer.
	(_Rb_tree::_M_get_insert_unique_pos): Likewise.
	(_Rb_tree::_M_get_insert_equal_pos): Likewise.
	(_Rb_tree::_M_insert_equal_lower_node): Likewise.
	(_Rb_tree::_M_insert_unique, _Rb_tree::_M_emplace_unique,
	_Rb_tree::_M_emplace_hint_unique): Remove static_cast.

From-SVN: r223746
This commit is contained in:
Jonathan Wakely 2015-05-27 12:18:44 +01:00 committed by Jonathan Wakely
parent 2097b5b029
commit 151fbaac5c
2 changed files with 87 additions and 77 deletions
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23
libstdc++-v3/ChangeLog
View File

@ -1,5 +1,28 @@
2015-05-27 Jonathan Wakely <jwakely@redhat.com>
* include/bits/stl_tree.h (_Rb_tree::_M_end()): Return _Base_ptr
instead of downcasting.
(_Rb_tree::_M_copy): Change second parameter to _Base_ptr.
(_Rb_tree::_M_lower_bound, _Rb_tree:_M_upper_bound): Likewise.
(_Rb_tree::_S_iter): Remove.
(_Rb_tree::_S_lower_bound_tr, _Rb_tree::_S_upper_bound_tr): Remove.
(_Rb_tree::_M_find_tr(const _Kt&) const): Call _M_lower_bound_tr
instead of _S_lower_bound_tr
(_Rb_tree::_M_find_tr(const _Kt&)): Call const overload.
(_Rb_tree::_M_lower_bound_tr(const _Kt&) const): Do the search here
instead of calling _S_lower_bound_tr.
(_Rb_tree::_M_lower_bound_tr(const _Kt&)): Call const overload.
(_Rb_tree::_M_upper_bound_tr(const _Kt&) const): Do the search here
instead of calling _S_upper_bound_tr.
(_Rb_tree::_M_upper_bound_tr(const _Kt&)): Call const overload.
(_Rb_tree::_M_equal_range_tr(const _Kt&)): Likewise.
(_Rb_tree::equal_range): Use _Base_ptr for end pointer.
(_Rb_tree::_M_get_insert_unique_pos): Likewise.
(_Rb_tree::_M_get_insert_equal_pos): Likewise.
(_Rb_tree::_M_insert_equal_lower_node): Likewise.
(_Rb_tree::_M_insert_unique, _Rb_tree::_M_emplace_unique,
_Rb_tree::_M_emplace_hint_unique): Remove static_cast.
PR libstdc++/66017
* include/bits/stl_tree.h (_Rb_tree_node): Use __aligned_membuf.
(_Rb_tree_iterator, _Rb_tree_const_iterator): Support construction

141
libstdc++-v3/include/bits/stl_tree.h
View File

@ -658,13 +658,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
(this->_M_impl._M_header._M_parent);
}
_Link_type
_Base_ptr
_M_end() _GLIBCXX_NOEXCEPT
{ return reinterpret_cast<_Link_type>(&this->_M_impl._M_header); }
{ return &this->_M_impl._M_header; }
_Const_Link_type
_Const_Base_ptr
_M_end() const _GLIBCXX_NOEXCEPT
{ return reinterpret_cast<_Const_Link_type>(&this->_M_impl._M_header); }
{ return &this->_M_impl._M_header; }
static const_reference
_S_value(_Const_Link_type __x)
@ -774,10 +774,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
template<typename _NodeGen>
_Link_type
_M_copy(_Const_Link_type __x, _Link_type __p, _NodeGen&);
_M_copy(_Const_Link_type __x, _Base_ptr __p, _NodeGen&);
_Link_type
_M_copy(_Const_Link_type __x, _Link_type __p)
_M_copy(_Const_Link_type __x, _Base_ptr __p)
{
_Alloc_node __an(*this);
return _M_copy(__x, __p, __an);
@ -787,19 +787,19 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_erase(_Link_type __x);
iterator
_M_lower_bound(_Link_type __x, _Link_type __y,
_M_lower_bound(_Link_type __x, _Base_ptr __y,
const _Key& __k);
const_iterator
_M_lower_bound(_Const_Link_type __x, _Const_Link_type __y,
_M_lower_bound(_Const_Link_type __x, _Const_Base_ptr __y,
const _Key& __k) const;
iterator
_M_upper_bound(_Link_type __x, _Link_type __y,
_M_upper_bound(_Link_type __x, _Base_ptr __y,
const _Key& __k);
const_iterator
_M_upper_bound(_Const_Link_type __x, _Const_Link_type __y,
_M_upper_bound(_Const_Link_type __x, _Const_Base_ptr __y,
const _Key& __k) const;
public:
@ -1117,43 +1117,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
__is_transparent<_Cmp, _Kt, __void_t<typename _Cmp::is_transparent>>
{ typedef void type; };
static auto _S_iter(_Link_type __x) { return iterator(__x); }
static auto _S_iter(_Const_Link_type __x) { return const_iterator(__x); }
template<typename _Cmp, typename _Link, typename _Kt>
static auto
_S_lower_bound_tr(_Cmp& __cmp, _Link __x, _Link __y, const _Kt& __k)
{
while (__x != 0)
if (!__cmp(_S_key(__x), __k))
__y = __x, __x = _S_left(__x);
else
__x = _S_right(__x);
return _S_iter(__y);
}
template<typename _Cmp, typename _Link, typename _Kt>
static auto
_S_upper_bound_tr(_Cmp& __cmp, _Link __x, _Link __y, const _Kt& __k)
{
while (__x != 0)
if (__cmp(__k, _S_key(__x)))
__y = __x, __x = _S_left(__x);
else
__x = _S_right(__x);
return _S_iter(__y);
}
template<typename _Kt,
typename _Req = typename __is_transparent<_Compare, _Kt>::type>
iterator
_M_find_tr(const _Kt& __k)
{
auto& __cmp = _M_impl._M_key_compare;
auto __j = _S_lower_bound_tr(__cmp, _M_begin(), _M_end(), __k);
return (__j == end() || __cmp(__k, _S_key(__j._M_node)))
? end() : __j;
const _Rb_tree* __const_this = this;
return __const_this->_M_find_tr(__k)._M_const_cast();
}
template<typename _Kt,
@ -1161,10 +1131,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
const_iterator
_M_find_tr(const _Kt& __k) const
{
auto& __cmp = _M_impl._M_key_compare;
auto __j = _S_lower_bound_tr(__cmp, _M_begin(), _M_end(), __k);
return (__j == end() || __cmp(__k, _S_key(__j._M_node)))
? end() : __j;
auto __j = _M_lower_bound_tr(__k);
if (__j != end() && _M_impl._M_key_compare(__k, _S_key(__j._M_node)))
__j = end();
return __j;
}
template<typename _Kt,
@ -1181,8 +1151,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
iterator
_M_lower_bound_tr(const _Kt& __k)
{
auto& __cmp = _M_impl._M_key_compare;
return _S_lower_bound_tr(__cmp, _M_begin(), _M_end(), __k);
const _Rb_tree* __const_this = this;
return __const_this->_M_lower_bound_tr(__k)._M_const_cast();
}
template<typename _Kt,
@ -1190,8 +1160,17 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
const_iterator
_M_lower_bound_tr(const _Kt& __k) const
{
auto& __cmp = _M_impl._M_key_compare;
return _S_lower_bound_tr(__cmp, _M_begin(), _M_end(), __k);
auto __x = _M_begin();
auto __y = _M_end();
while (__x != 0)
if (!_M_impl._M_key_compare(_S_key(__x), __k))
{
__y = __x;
__x = _S_left(__x);
}
else
__x = _S_right(__x);
return const_iterator(__y);
}
template<typename _Kt,
@ -1199,8 +1178,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
iterator
_M_upper_bound_tr(const _Kt& __k)
{
auto& __cmp = _M_impl._M_key_compare;
return _S_upper_bound_tr(__cmp, _M_begin(), _M_end(), __k);
const _Rb_tree* __const_this = this;
return __const_this->_M_upper_bound_tr(__k)._M_const_cast();
}
template<typename _Kt,
@ -1208,8 +1187,17 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
const_iterator
_M_upper_bound_tr(const _Kt& __k) const
{
auto& __cmp = _M_impl._M_key_compare;
return _S_upper_bound_tr(__cmp, _M_begin(), _M_end(), __k);
auto __x = _M_begin();
auto __y = _M_end();
while (__x != 0)
if (_M_impl._M_key_compare(__k, _S_key(__x)))
{
__y = __x;
__x = _S_left(__x);
}
else
__x = _S_right(__x);
return const_iterator(__y);
}
template<typename _Kt,
@ -1217,12 +1205,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
pair<iterator, iterator>
_M_equal_range_tr(const _Kt& __k)
{
auto __low = _M_lower_bound_tr(__k);
auto __high = __low;
auto& __cmp = _M_impl._M_key_compare;
while (__high != end() && !__cmp(__k, _S_key(__high._M_node)))
++__high;
return { __low, __high };
const _Rb_tree* __const_this = this;
auto __ret = __const_this->_M_equal_range_tr(__k);
return { __ret.first._M_const_cast(), __ret.second._M_const_cast() };
}
template<typename _Kt,
@ -1553,7 +1538,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
#endif
{
_Link_type __x = _M_begin();
_Link_type __y = _M_end();
_Base_ptr __y = _M_end();
while (__x != 0)
{
__y = __x;
@ -1568,7 +1553,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
template<typename _NodeGen>
typename _Rb_tree<_Key, _Val, _KoV, _Compare, _Alloc>::_Link_type
_Rb_tree<_Key, _Val, _KoV, _Compare, _Alloc>::
_M_copy(_Const_Link_type __x, _Link_type __p, _NodeGen& __node_gen)
_M_copy(_Const_Link_type __x, _Base_ptr __p, _NodeGen& __node_gen)
{
// Structural copy. __x and __p must be non-null.
_Link_type __top = _M_clone_node(__x, __node_gen);
@ -1621,7 +1606,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
typename _Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>::iterator
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
_M_lower_bound(_Link_type __x, _Link_type __y,
_M_lower_bound(_Link_type __x, _Base_ptr __y,
const _Key& __k)
{
while (__x != 0)
@ -1637,7 +1622,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
typename _Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>::const_iterator
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
_M_lower_bound(_Const_Link_type __x, _Const_Link_type __y,
_M_lower_bound(_Const_Link_type __x, _Const_Base_ptr __y,
const _Key& __k) const
{
while (__x != 0)
@ -1653,7 +1638,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
typename _Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>::iterator
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
_M_upper_bound(_Link_type __x, _Link_type __y,
_M_upper_bound(_Link_type __x, _Base_ptr __y,
const _Key& __k)
{
while (__x != 0)
@ -1669,7 +1654,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
typename _Rb_tree<_Key, _Val, _KeyOfValue,
_Compare, _Alloc>::const_iterator
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
_M_upper_bound(_Const_Link_type __x, _Const_Link_type __y,
_M_upper_bound(_Const_Link_type __x, _Const_Base_ptr __y,
const _Key& __k) const
{
while (__x != 0)
@ -1690,7 +1675,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
equal_range(const _Key& __k)
{
_Link_type __x = _M_begin();
_Link_type __y = _M_end();
_Base_ptr __y = _M_end();
while (__x != 0)
{
if (_M_impl._M_key_compare(_S_key(__x), __k))
@ -1699,7 +1684,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
__y = __x, __x = _S_left(__x);
else
{
_Link_type __xu(__x), __yu(__y);
_Link_type __xu(__x);
_Base_ptr __yu(__y);
__y = __x, __x = _S_left(__x);
__xu = _S_right(__xu);
return pair<iterator,
@ -1721,7 +1707,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
equal_range(const _Key& __k) const
{
_Const_Link_type __x = _M_begin();
_Const_Link_type __y = _M_end();
_Const_Base_ptr __y = _M_end();
while (__x != 0)
{
if (_M_impl._M_key_compare(_S_key(__x), __k))
@ -1730,7 +1716,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
__y = __x, __x = _S_left(__x);
else
{
_Const_Link_type __xu(__x), __yu(__y);
_Const_Link_type __xu(__x);
_Const_Base_ptr __yu(__y);
__y = __x, __x = _S_left(__x);
__xu = _S_right(__xu);
return pair<const_iterator,
@ -1802,7 +1789,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{
typedef pair<_Base_ptr, _Base_ptr> _Res;
_Link_type __x = _M_begin();
_Link_type __y = _M_end();
_Base_ptr __y = _M_end();
bool __comp = true;
while (__x != 0)
{
@ -1834,7 +1821,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{
typedef pair<_Base_ptr, _Base_ptr> _Res;
_Link_type __x = _M_begin();
_Link_type __y = _M_end();
_Base_ptr __y = _M_end();
while (__x != 0)
{
__y = __x;
@ -1870,7 +1857,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
true);
}
return _Res(iterator(static_cast<_Link_type>(__res.first)), false);
return _Res(iterator(__res.first), false);
}
template<typename _Key, typename _Val, typename _KeyOfValue,
@ -1976,7 +1963,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
return _M_insert_(__res.first, __res.second,
_GLIBCXX_FORWARD(_Arg, __v),
__node_gen);
return iterator(static_cast<_Link_type>(__res.first));
return iterator(__res.first);
}
template<typename _Key, typename _Val, typename _KeyOfValue,
@ -2102,7 +2089,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
_M_insert_equal_lower_node(_Link_type __z)
{
_Link_type __x = _M_begin();
_Link_type __y = _M_end();
_Base_ptr __y = _M_end();
while (__x != 0)
{
__y = __x;
@ -2130,7 +2117,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
return _Res(_M_insert_node(__res.first, __res.second, __z), true);
_M_drop_node(__z);
return _Res(iterator(static_cast<_Link_type>(__res.first)), false);
return _Res(iterator(__res.first), false);
}
__catch(...)
{
@ -2177,7 +2164,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
return _M_insert_node(__res.first, __res.second, __z);
_M_drop_node(__z);
return iterator(static_cast<_Link_type>(__res.first));
return iterator(__res.first);
}
__catch(...)
{