std::generic_category
De cppreference.com
| Definido en el archivo de encabezado <system_error>
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const std::error_category& generic_category();
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(desde C++11) | |
Obtiene una referencia al objeto de error de categoría estática de los errores genéricos. El objeto es necesaria para anular el
error_category::name() función virtual para devolver un puntero a la cadena "generic". Se utiliza para identificar condiciones de error que corresponden a los códigos de POSIX errno .Original:
Obtains a reference to the static error category object for generic errors. The object is required to override the virtual function
error_category::name() to return a pointer to the string "generic". It is used to identify error conditions that correspond to the POSIX errno codes.The text has been machine-translated via Google Translate.
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Parámetros
(Ninguno)
Original:
(none)
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Valor de retorno
Una referencia al objeto estático de tipo no especificado de tiempo de ejecución, derivado de std::error_category .
Original:
A reference to the static object of unspecified runtime type, derived from std::error_category.
The text has been machine-translated via Google Translate.
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Excepciones
Ejemplo
Ejecuta este código
#include <iostream>
#include <system_error>
#include <cerrno>
#include <string>
int main()
{
std::error_condition econd = std::generic_category().default_error_condition(EDOM);
std::cout << "Category: " << econd.category().name() << '\n'
<< "Value: " << econd.value() << '\n'
<< "Message: " << econd.message() << '\n';
}
Salida:
Category: generic
Value: 33
Message: Numerical argument out of domain
