std::bad_exception
From cppreference.com
| Defined in header
<exception>
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| class bad_exception;
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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
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[edit] Member functions
constructs the bad_exception object (public member function) |
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| copies the object (public member function) |
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| [virtual]
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returns the explanatory string (virtual public member function) |
Inherited from std::exception
Member functions
| [virtual]
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destructs the exception object (virtual public member function of std::exception)
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| [virtual]
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returns an explanatory string (virtual public member function of std::exception)
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[edit] Example
Run this code
#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