std::string_view是C++17中引入的轻量级字符串视图,而QString是Qt框架中用于处理字符串的类。将std::string_view转换为QString可以通过以下步骤完成: 1...
QStringView也有toUtf8，它返回QByteArray，并具有与QString相同的保证。
std::stringtoStdString( QStringView view ){returnQString(view).toStdString(); } Run Code Online (Sandbox Code Playgroud) 理论上,有 1 个中间内存副本也可以删除;您可以直接从 UTF16 QStringView 数据转换为std::string. std::stringtoStdString( QStringView view ){autotoUtf8 = QStringEncoder(...
Compile time and code size is reduced because only one instance of count_letter_Rs need be compiled. The interface of the string types in use need not be uniform, allowing types like winrt::hstring, MFC CString, or QString to work as long as a suitable conversion function is added to ...