Defined in header <exception> | ||
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class bad_exception; |
std::bad_exception
is the type of the exception thrown by the C++ runtime in the following situations:
std::exception_ptr
stores a copy of the caught exception and if the copy constructor of the exception object caught by std::current_exception
throws an exception, the captured exception is an instance of std::bad_exception
. 2) 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. | (until C++17) |
Inheritance diagram.
constructs the bad_exception object (public member function) |
|
copies the object (public member function) |
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[virtual] | returns the explanatory string (virtual public member function) |
[virtual] | destroys the exception object (virtual public member function of std::exception ) |
[virtual] | returns an explanatory string (virtual public member function of std::exception ) |
#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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