| Defined in header <exception> | ||
|---|---|---|
class bad_exception; |
std::bad_exception is the type of the exception thrown by the C++ runtime in the following situations:
1) If a dynamic exception specification is violated and
std::unexpected throws or rethrows an exception that still violates the exception specification, but the exception specification allows std::bad_exception, std::bad_exception is thrown. 2) If
std::exception_ptr stores a copy of the caught exception and if the copy constructor of the exception object caught by current_exception throws an exception, the captured exception is an instance of std::bad_exception.
Inheritance diagram.
Member functions
constructs the bad_exception object (public member function) | |
| operator=
| copies the object (public member function) |
| [virtual] | returns the explanatory string (virtual public member function) |
Inherited from std::exception
Member functions
| (destructor)
[virtual] | destructs the exception object (virtual public member function of std::exception) |
| [virtual] | returns an explanatory string (virtual public member function of std::exception) |
Example
#include <iostream>
#include <exception>
#include <stdexcept>
void my_unexp() { throw; }
void test() throw(std::bad_exception)
{
throw std::runtime_error("test");
}
int main()
{
std::set_unexpected(my_unexp);
try {
test();
} catch(const std::bad_exception& e)
{
std::cerr << "Caught " << e.what() << '\n';
}
}Output:
Caught std::bad_exception
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