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    std::exception_ptr

    De cppreference.com

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    <metanoindex/>

     
    C++
     
    Bibliothèque d'utilitaires
     
    Erreur de manipulation
    La gestion des exceptions
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    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)
    Défaillances de gestion des exceptions
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    Exception handling failures
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    terminate
    terminate_handler
    get_terminate (C++11)
    set_terminate
    unexpected (obsolète)
    bad_exception
    unexpected_handler (obsolète)
    get_unexpected (C++11) (obsolète)
    set_unexpected (obsolète)
    Catégories d'exception
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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
    Les codes d'erreur
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    Error codes
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    Les codes d'erreur
    errno
    Les assertions
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    Assertions
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    assert
    system_error installation
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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)
     
    <tbody> </tbody>
    Déclaré dans l'en-tête <exception>
    typedef /*unspecified*/ exception_ptr;
    		 (depuis C++11)
    std::exception_ptr est un nullable pointeur comme le type qui gère un objet d'exception qui a été levée et capturé avec std::current_exception. Une instance de std::exception_ptr peut être transmise à une autre fonction, peut-être sur un autre thread, où l'exception peut-être relancée et manipulé avec une clause catch .
    Original:
    std::exception_ptr is a nullable pointer-like type that manages an exception object which has been thrown and captured with std::current_exception. An instance of std::exception_ptr may be passed to another function, possibly on another thread, where the exception may be rethrown and handled with a catch clause.
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    Par défaut, construit std::exception_ptr est un pointeur NULL, il ne pointe pas vers un objet d'exception .
    Original:
    Default-constructed std::exception_ptr is a null pointer, it does not point to an exception object.
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    Deux instances de std::exception_ptr comparer égales seulement si elles sont à la fois nulle ou deux points à l'objet même exception .
    Original:
    Two instances of std::exception_ptr compare equal only if they are both null or both point at the same exception object.
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    std::exception_ptr n'est pas convertible implicitement en aucun calcul, dénombrement, ou de type pointeur. Il est convertible en bool .
    Original:
    std::exception_ptr is not implicitly convertible to any arithmetic, enumeration, or pointer type. It is convertible to bool.
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    L'objet exception référencée par une std::exception_ptr reste valable tant qu'il reste au moins un std::exception_ptr qui est son référencement: std::exception_ptr est un pointeur la copropriété intelligente .
    Original:
    The exception object referenced by an std::exception_ptr remains valid as long as there remains at least one std::exception_ptr that is referencing it: std::exception_ptr is a shared-ownership smart pointer.
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    Exemple

    [edit]
    #include <iostream>
#include <string>
#include <exception>
#include <stdexcept>

void handle_eptr(std::exception_ptr eptr) // passing by value is ok