Namespace
Varianti

std::rethrow_exception

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C++
 
Utilità libreria
Tipo di supporto (basic types, RTTI, type traits)
Gestione della memoria dinamica
La gestione degli errori
Programma di utilità
Funzioni variadic
Data e ora
Funzione oggetti
initializer_list(C++11)
bitset
hash(C++11)
Gli operatori relazionali
Original:
Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Coppie e tuple
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Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Swap, in avanti e spostare
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Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
La gestione degli errori
Gestione delle eccezioni
Original:
Exception handling
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exception
uncaught_exception
exception_ptr(C++11)
make_exception_ptr(C++11)
current_exception(C++11)
rethrow_exception(C++11)
nested_exception(C++11)
throw_with_nested(C++11)
rethrow_if_nested(C++11)
Gestione delle eccezioni fallimenti
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Exception handling failures
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terminate
terminate_handler
get_terminate(C++11)
set_terminate
unexpected(deprecato)
bad_exception
unexpected_handler(deprecato)
get_unexpected(C++11)(deprecato)
set_unexpected(deprecato)
Eccezione categorie
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Exception categories
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logic_error
invalid_argument
domain_error
length_error
out_of_range
runtime_error
range_error
overflow_error
underflow_error
Codici di errore
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Error codes
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Codici di errore
errno
Asserzioni
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Assertions
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assert
impianto system_error
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system_error facility
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error_category(C++11)
generic_category(C++11)
system_category(C++11)
error_condition(C++11)
errc(C++11)
error_code(C++11)
system_error(C++11)
 
Elemento definito nell'header <exception>
[[noreturn]] void rethrow_exception( std::exception_ptr p )
 (dal C++11)
Genera l'oggetto eccezione catturata in precedenza, cui fa riferimento il puntatore eccezione p.
Original:
Throws the previously captured exception object, referred to by the exception pointer p.
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Indice

[modifica] Parametri

p -
non nullo std::exception_ptr
Original:
non-null std::exception_ptr
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[modifica] Valore di ritorno

(Nessuno)
Original:
(none)
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[modifica] Esempio

[edit]
#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"

[modifica] Vedi anche

(C++11)
puntatore di tipo comune per la gestione di oggetti eccezione
Original:
shared pointer type for handling exception objects
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(typedef) [modifica]
(C++11)
 captures the current exception in a std::exception_ptr
(funzione) [modifica]
Estratto da "https://it.cppreference.com/mwiki/index.php?title=cpp/error/rethrow_exception&oldid=25586"