Defined in header <exception> | ||
---|---|---|
[[noreturn]] void rethrow_exception( std::exception_ptr p ) | (since C++11) |
Throws the previously captured exception object, referred to by the exception pointer p
.
p | - | non-null std::exception_ptr |
(none).
#include <iostream> #include <string> #include <exception> #include <stdexcept> void handle_eptr(std::exception_ptr eptr) // passing by value is ok { try { if (eptr) { std::rethrow_exception(eptr); } } catch(const std::exception& e) { std::cout << "Caught exception \"" << e.what() << "\"\n"; } } int main() { std::exception_ptr eptr; try { std::string().at(1); // this generates an std::out_of_range } catch(...) { eptr = std::current_exception(); // capture } handle_eptr(eptr); } // destructor for std::out_of_range called here, when the eptr is destructed
Output:
Caught exception "basic_string::at"
(C++11) | shared pointer type for handling exception objects (typedef) |
(C++11) | captures the current exception in a std::exception_ptr (function) |
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