内容

• 函数
• 详细描述

QtLiterals 名称空间

QtLiterals 名称空间为 Qt 类型声明文字运算符。 更多...

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

函数

QByteArray	operator""_qba (const char * str , size_t size )
QString	operator""_qs (const char16_t * str , size_t size )

详细描述

函数文档编制

[since 6.2] QByteArray operator""_qba (const char * str , size_t size )

文字运算符创建的 QByteArray out of the first size characters in the char string literal str .

QByteArray is created at compile time, and the generated string data is stored in the read-only segment of the compiled object file. Duplicate literals may share the same read-only memory. This functionality is interchangeable with QByteArrayLiteral , but saves typing when many string literals are present in the code.

以下代码创建 QByteArray :

auto str = "hello"_qba;
					

该函数在 Qt 6.2 引入。

另请参阅 QByteArrayLiteral and QtLiterals::operator""_qs (const char16_t *str, size_t size).

[since 6.2] QString operator""_qs (const char16_t * str , size_t size )

文字运算符创建的 QString out of the first size characters in the char16_t string literal str .

QString is created at compile time, and the generated string data is stored in the read-only segment of the compiled object file. Duplicate literals may share the same read-only memory. This functionality is interchangeable with QStringLiteral , but saves typing when many string literals are present in the code.

以下代码创建 QString :

auto str = u"hello"_qs;
					

该函数在 Qt 6.2 引入。

另请参阅 QStringLiteral and QtLiterals::operator""_qba (const char *str, size_t size).