我有一个从boost::exception
继承的自定义异常类如下:子类升压例外
class ConfigurationException : public boost::exception
{
public:
ConfigurationException(const std::string & title, const std::string & message) {
QMessageBox box(QMessageBox::Critical, QString::fromStdString(title), QString::fromStdString(parse(message)), QMessageBox::Ok);
box.exec();
}
}
,它可以在代码中这样调用:
try {
// Do some stuff here
} catch (std::exception e) {
BOOST_THROW_EXCEPTION(ConfigurationException("Configuration Error", e.what()));
}
然而,当我尝试编译,我得到的错误
Libs\boost\include\boost/throw_exception.hpp(58): error C2664:'boost::throw_exception_assert_compatibility' : cannot convert parameter 1 from 'const ConfigurationException' to 'const std::exception &'
Reason: cannot convert from 'const ConfigurationException' to 'const std::exception'
No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called
Libs\boost\include\boost/throw_exception.hpp(85) : see reference to function template instantiation 'void boost::throw_exception<E>(const E &)' being compiled
with
[
E=ConfigurationException
]
src\ConfigurationReader.cpp(81) : see reference to function template instantiation 'void boost::exception_detail::throw_exception_<ConfigurationException>(const E &,const char *,const char *,int)' being compiled
with
[
E=ConfigurationException
]
我不是很确定为什么它试图将我的例外投给std::exception
。有人能告诉我如何抛出这个异常并获取文件,函数等数据吗? 。struct ConfigurationException : virtual std::exception, virtual boost::exception
std::exception
和boost::exception
几乎说显然是throw ConfigurationException("some title", "some message");
工作正常
感谢您的解决方案。您是否可以详细说明将Qt与异常混合的观点?你能否提出一种更好的方式来部署一条消息来通知用户损坏的配置文件? –