1berry/qtbase
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

QHash: code tidies

Browse Source 
Apply std::exchange. Remove a wrong comment about MultiNode
-- the compiler isn't generating any move operations, the
move constructor is user-provided and there isn't a move
assignment operator...

Change-Id: Idd69458c69cc93e4575c119daba564e0046452c1
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
This commit is contained in:
Giuseppe D'Angelo 2020-10-15 02:30:18 +02:00
parent 9fa848dcaf
commit 9f1e1eb552
1 changed files with 5 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/corelib/tools/qhash.h
View File

@ -185,9 +185,8 @@ struct MultiNode
MultiNode(MultiNode &&other)
: key(other.key),
value(other.value)
value(qExchange(other.value, nullptr))
{
other.value = nullptr;
}
MultiNode(const MultiNode &other)
@ -217,16 +216,13 @@ struct MultiNode
void insertMulti(Args &&... args)
{
Chain *e = new Chain{ T(std::forward<Args>(args)...), nullptr };
e->next = value;
value = e;
e->next = qExchange(value, e);
}
template<typename ...Args>
void emplaceValue(Args &&... args)
{
value->value = T(std::forward<Args>(args)...);
}
// compiler generated move operators are fine
};
template<typename Node>
@ -1212,10 +1208,10 @@ public:
}
return *this;
}
QMultiHash(QMultiHash &&other) noexcept : d(other.d), m_size(other.m_size)
QMultiHash(QMultiHash &&other) noexcept
: d(qExchange(other.d, nullptr)),
m_size(qExchange(other.m_size, 0))
{
other.d = nullptr;
other.m_size = 0;
}
QMultiHash &operator=(QMultiHash &&other) noexcept(std::is_nothrow_destructible<Node>::value)
{