qtcreator expected a declarationQt creator expected a declaration 当Qt Creator显示"expected a declaration"错误时,意味着您的代码存在语法或结构问题。这个错误通常发生在您在不允许的位置上有一个语句或表达式。 要解决此错误,您应该检查以下内容: 1. 确保您正确声明变量、函数或其他实体。检查语句末尾是否缺少...
然而,在某些情况下,我们可能会在错误的位置或格式中尝试进行声明,这就会导致编译器报错并显示"expected a declaration"的消息。 错误消息"expected a declaration"的常见原因之一是在函数体之外尝试进行声明。在C++中,变量和函数通常在函数内部声明。因此,如果我们在函数体之外尝试声明变量或函数,编译器就会报错并显示"...
-Watomic-property-with-user-defined-accessor writable atomic property %0 cannot pair a synthesized %select{getter|setter}1 with a user defined %select{getter|setter}2 -Wattributes unknown attribute %0 ignored -Wauto-var-id 'auto' deduced as 'id' in declaration of %0 -Wavailability unknown ...
您需要添加一个转发声明，以告知编译器saveLine类已存在：
// As conectionList.last could equal last, this could be a noop connectionList.last = last; } connectionLists->dirty = false; } } QObjectPrivate::Sender *QObjectPrivate::setCurrentSender(QObject *receiver, Sender *sender) { Sender *previousSender = receiver->d_func()->currentSender; ...
存在交叉编译的情况时，cgo 工具是不可用的。在标准 go 命令的上下文环境中，交叉编译意味着程序构建环境...
We read every piece of feedback, and take your input very seriously. Include my email address so I can be contacted Cancel Submit feedback Saved searches Use saved searches to filter your results more quickly Cancel Create saved search Sign in Sign up Reseting focus {...
../../include/QtGui/private/../../../src/gui/kernel/qt_x11_p.h:280:error:‘Colormap’ does not name a type../../include/QtGui/private/../../../src/gui/kernel/qt_x11_p.h:281:error:ISO C++ forbids declaration of ‘Visual’ with no type...
qatomic_aarch64.h ../corelib/arch/qatomic_alpha.h ../corelib/arch/qatomic_arch.h ../corelib/arch/qatomic_arm.h ../corelib/arch/qatomic_armv5.h ../corelib/arch/qatomic_armv6.h ../corelib/arch/qatomic_armv7.h ../corelib/arch/qatomic_avr32.h ../corelib/arch/qatomic_bfin.h...
The fix depends on what this code is expected to achieve. If the check is duplicated by accident, one can delete it. A different scenario is also possible: some other necessary condition has been left out.Fragment #5: one too many local variables...