C++ Question
NotImplementedExcpetion C++
From the answer here I implemented my
NotImplementedException//exceptions.h
namespace base
{
class NotImplementedException : public std::logic_error
{
public:
virtual char const* what() { return "Function not yet implemented."; }
};
}
In another class I want to throw this exception (same namespace)
std::string to_string() override
{
throw new NotImplementedException();
}
The
to_stringnamespace BSE {
class BaseObject
{
virtual std::string to_string() = 0;
};
}
This gives me the error
error C2280: 'BSE::NotImplementedException::NotImplementedException(void)': attempting to reference a deleted functionFrom here I understood that it has something to do with move constructor or assignment which according to cppreference.com - throw (1) this could be the case:
First, copy-initializes the exception object from expression (this may call the move constructor for rvalue expression, and the copy/move may be subject to copy elision)
I tried adding
NotImplementedException(const NotImplementedException&) = default;
NotImplementedException& operator=(const NotImplementedException&) = default;
to my class but that gives me
error C2512: 'BSE::NotImplementedException': no appropriate default constructor availablestd::logic_error
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Answer Source
It should be something like:
namespace base
{
class NotImplementedException : public std::logic_error
{
public:
NotImplementedException () : std::logic_error{"Function not yet implemented."} {}
};
}
And then
std::string to_string() override
{
throw NotImplementedException(); // with new.
}
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