I try to use boost::exception but have the trouble. I write following code:
struct BaseExceptionXXX : public virtual std::exception, public virtual boost::exception
{
public:
BaseExceptionXXX()
{ };
virtual ~BaseExceptionXXX() {};
BaseExceptionXXX(char const* const message)
: std::exception(message)
{ }
BaseExceptionXXX(const std::exception& e)
: std::exception(e)
{ }
BaseExceptionXXX(const BaseException& e)
: std::exception(e)
, boost::exception(e)
{ }
bool IsEmpty() const
{
const std::string what_err = std::exception::what();
return (what_err.empty() && boost::get_error_info<UserErrorInfo>(*this) == nullptr);
}
const char* what() const throw() override
{
return boost::diagnostic_information(*this).c_str(); //<-- crash here
}
};
int main()
{
std::string exception_description;
try
{
BOOST_THROW_EXCEPTION(BaseExceptionXXX("hello exception"));
}
catch (BaseExceptionXXX& ex)
{
exception_description = ex.what(); //<-- crash here
}
}
But it crashed in the function: boost::diagnostic_information(*this). It crashed by the reason: Stack overflow
Why it happens and how to use the boost::exception in the correct way?
Boost version - 1.66
MSVS2017 version - 15.5.5
Aucun commentaire:
Enregistrer un commentaire