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std::system_error::system_error

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< cpp‎ | error‎ | system error

 
 
Utilidades de la biblioteca
Escriba apoyo (basic types, RTTI, type traits)
Gestión de memoria dinámica
Gestión de errores
Programa de servicios públicos
Funciones variadic
Fecha y hora
Objetos Function
initializer_list(C++11)
bitset
hash(C++11)
Operadores relacionales
Original:
Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Pares y tuplas
Original:
Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Cambiar, hacia adelante y mover
Original:
Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
Gestión de errores
Manejo de excepciones
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)
Fallas de control de excepciones
Original:
Exception handling failures
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terminate
terminate_handler
get_terminate(C++11)
set_terminate
unexpected(obsoleto)
bad_exception
unexpected_handler(obsoleto)
get_unexpected(C++11)(obsoleto)
set_unexpected(obsoleto)
Categorías excepción
Original:
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
Los códigos de error
Original:
Error codes
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Los códigos de error
errno
Las afirmaciones
Original:
Assertions
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assert
instalación SYSTEM_ERROR
Original:
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)
 
std::system_error
Las funciones miembro
Original:
Member functions
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system_error::system_error
system_error::code
system_error::what
 
system_error( std::error_code ec );
(1) (desde C++11)
system_error( std::error_code ec, const std::string& what_arg );
(2) (desde C++11)
system_error( std::error_code ec, const char* what_arg );
(2) (desde C++11)
system_error( int ev, const std::error_category& ecat
(3) (desde C++11)
system_error( int ev, const std::error_category& ecat,
              const std::string& what_arg);
(4) (desde C++11)
system_error( int ev, const std::error_category& ecat,
              const char* what_arg);
(4) (desde C++11)
Construye objeto nuevo error del sistema .
Original:
Constructs new system error object.
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1)
Las construcciones con ec código de error
Original:
Constructs with error code ec
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2)
Las construcciones con ec código de error y what_arg cadena explicación. La cadena devuelta por what() está garantizado para contener what_arg .
Original:
Constructs with error code ec and explanation string what_arg. The string returned by what() is guaranteed to contain what_arg.
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3)
Las construcciones con ev subyacente código de error y categoría asociada error ecat .
Original:
Constructs with underlying error code ev and associated error category ecat.
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4)
Las construcciones con ev subyacente código de error, error asociado ecat categoría y what_arg cadena explicativa. La cadena devuelta por what() está garantizado para contener what_arg .
Original:
Constructs with underlying error code ev, associated error category ecat and explanatory string what_arg. The string returned by what() is guaranteed to contain what_arg.
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[editar] Parámetros

ec -
código de error
Original:
error code
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ev -
el código de error en la codificación de base
Original:
error code in base encoding
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ecat -
la categoría de error
Original:
the category of error
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what_arg -
cadena explicativa
Original:
explanatory string
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[editar] Ejemplo

Muestra cómo crear una excepción SYSTEM_ERROR de un valor errno
Original:
Demonstrates how to create a system_error exception from a errno value
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#include <iostream>
#include <system_error>
 
int main()
{
    try
    {
        throw std::system_error(EDOM, std::system_category());
    }
    catch (const std::system_error& error)
    {
        std::cout << "Error: " << error.code()
                  << " - " << error.code().message() << '\n';
    }
}

Output:

Error: system:33 - Numerical argument out of domain