std::rethrow_exception
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<metanoindex/>
<tbody> </tbody>| definiert in Header <exception>
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[[noreturn]] void rethrow_exception( std::exception_ptr p ) |
(seit C++11) | |
Wirft den zuvor aufgenommenen Exception-Objekt, auf das sich der Ausnahme-Zeiger
p .Original:
Throws the previously captured exception object, referred to by the exception pointer
p.The text has been machine-translated via Google Translate.
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Parameter
| p | - | Nicht-Null-std::exception_ptr
Original: non-null std::exception_ptr The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Rückgabewert
(None)
Original:
(none)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Beispiel
#include <iostream>
#include <string>
#include <exception>
#include <stdexcept>
void handle_eptr(std::exception_ptr eptr) // passing by value is ok
{
try {
if (eptr != std::exception_ptr()) {
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"