QCollatorSortKey Class

The QCollatorSortKey class can be used to speed up string collation. 更多...

头：	#include <QCollatorSortKey>
CMake:	find_package(Qt6 REQUIRED COMPONENTS Core) target_link_libraries(mytarget PRIVATE Qt6::Core)
qmake:	QT += core

• 所有成员列表，包括继承成员
• QCollatorSortKey is part of 用于字符串数据的类 and 隐式共享类 .

注意： 此类的所有函数 可重入 .

公共函数

	QCollatorSortKey (const QCollatorSortKey & other )
(从 6.8 起)	QCollatorSortKey (QCollatorSortKey && other )
	~QCollatorSortKey ()
int	compare (const QCollatorSortKey & otherKey ) const
void	swap (QCollatorSortKey & other )
QCollatorSortKey &	operator= (QCollatorSortKey && other )
QCollatorSortKey &	operator= (const QCollatorSortKey & other )

相关非成员

bool	operator< (const QCollatorSortKey & lhs , const QCollatorSortKey & rhs )

详细描述

The QCollatorSortKey class is always created by QCollator::sortKey () and is used for fast strings collation, for example when collating many strings.

另请参阅 QCollator , QCollator::sortKey ()，和 compare ().

成员函数文档编制

QCollatorSortKey:: QCollatorSortKey (const QCollatorSortKey & other )

构造副本为 other collator key.

[noexcept, since 6.8] QCollatorSortKey:: QCollatorSortKey ( QCollatorSortKey && other )

Move-constructs a new QCollatorSortKey from other .

注意： The moved-from object other is placed in a partially-formed state, in which the only valid operations are destruction and assignment of a new value.

该函数在 Qt 6.8 引入。

[noexcept] QCollatorSortKey:: ~QCollatorSortKey ()

Destroys the collator key.

int QCollatorSortKey:: compare (const QCollatorSortKey & otherKey ) const

Compares this key to otherKey , which must have been created by the same QCollator 's sortKey() as this key. The comparison is performed in accordance with that QCollator 's sort order.

Returns a negative value if this key sorts before otherKey , 0 if the two keys are equal or a positive value if this key sorts after otherKey .

另请参阅 operator< ().

[noexcept] void QCollatorSortKey:: swap ( QCollatorSortKey & other )

Swaps this collator key with other 。此操作非常快且从不失败。

[noexcept] QCollatorSortKey &QCollatorSortKey:: operator= ( QCollatorSortKey && other )

移动赋值 other 到此 QCollatorSortKey 实例。

注意： The moved-from object other is placed in a partially-formed state, in which the only valid operations are destruction and assignment of a new value.

QCollatorSortKey &QCollatorSortKey:: operator= (const QCollatorSortKey & other )

赋值 other to this collator key.

相关非成员

bool operator< (const QCollatorSortKey & lhs , const QCollatorSortKey & rhs )

Both keys must have been created by the same QCollator 's sortKey(). Returns true if lhs should be sorted before rhs , according to the QCollator that created them; otherwise returns false .

另请参阅 QCollatorSortKey::compare ().

内容

1. 公共函数

2. 相关非成员

3. 详细描述