std::rethrow_exception

 

C++

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Os operadores relacionais Original: Relational operators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

rel_ops::operator!= rel_ops::operator> rel_ops::operator<= rel_ops::operator>=

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Manipulação de exceção Original: Exception handling 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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Defined in header <exception>
[[noreturn]] void rethrow_exception( std::exception_ptr p )		(a partir do C++ 11)

Lança o objeto de exceção anteriormente capturados, referido pelo ponteiro de exceção p.

Original:

Throws the previously captured exception object, referred to by the exception pointer p.

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Parâmetros

p

-

não nulo 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.

Valor de retorno

(Nenhum)

Original:

(none)

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Exemplo

#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"

Veja também

exception_ptr (C++11)	tipo ponteiro compartilhado para manusear objetos de exceção Original: shared pointer type for handling exception objects The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (typedef)
current_exception (C++11)	captures the current exception in a std::exception_ptr (função)