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std::ctime

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Utilidades de fecha y hora estilo C
Funciones
Manipulación de tiempo
Conversiones de formato
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(C++17)
 
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Definido en el archivo de encabezado <ctime>
char* ctime( const std::time_t* time );
Convierte dado tiempo desde la época para un tiempo de calendario local y luego a una representación textual, como si se aplicase std::asctime(std::localtime(time)). La cadena resultante tiene el siguiente formato:
Original:
Converts given time since epoch to a calendar local time and then to a textual representation, as if by calling std::asctime(std::localtime(time)). The resulting string has the following format:
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Www Mmm dd hh:mm:ss yyyy
  • Www - el día de la semana (uno de Mon, Tue, Wed, Thu, Fri, Sat, Sun) .
    Original:
    Www - the day of the week (one of Mon, Tue, Wed, Thu, Fri, Sat, Sun).
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  • Mmm - el mes (una de Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec) .
    Original:
    Mmm - the month (one of Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec).
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  • dd - el día del mes
    Original:
    dd - the day of the month
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  • hh - horas
    Original:
    hh - hours
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  • mm - minutos
    Original:
    mm - minutes
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  • ss - segundos
    Original:
    ss - seconds
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  • yyyy - años
    Original:
    yyyy - years
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La función no es compatible con localización .
Original:
The function does not support localization.
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Parámetros

time -
puntero a un objeto std::time_t especificando el tiempo de imprimir
Original:
pointer to a std::time_t object specifying the time to print
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Valor de retorno

Puntero a una cadena de caracteres terminada en cero estático celebración de la representación textual de fecha y hora. La cadena puede ser compartida entre std::asctime y std::ctime, y puede ser sobreescrita en cada invocación de cualquiera de estas funciones .
Original:
Pointer to a static null-terminated character string holding the textual representation of date and time. The string may be shared between std::asctime and std::ctime, and may be overwritten on each invocation of any of those functions.
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Notas

Esta función devuelve un puntero a datos estáticos y no es seguro para subprocesos. Además, se modifica el objeto std::tm estática que puede ser compartida con std::gmtime y std::localtime. POSIX marca esta función obsoleta y recomienda std::strftime lugar .
Original:
This function returns a pointer to static data and is not thread-safe. In addition, it modifies the static std::tm object which may be shared with std::gmtime and std::localtime. POSIX marks this function obsolete and recommends std::strftime instead.
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El comportamiento puede ser definido por los valores de time_t que resultan en la cadena de más de 25 caracteres (por ejemplo, año 10000)
Original:
The behavior may be undefined for the values of time_t that result in the string longer than 25 characters (e.g. year 10000)
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Ejemplo

#include <ctime>
#include <iostream>

int main()
{
    std::time_t result = std::time(NULL);
    std::cout << std::ctime(&result);
}

Salida:

Tue Dec 27 17:21:29 2011

Ver también

Convierte un objeto tm a una representación textual.
(función) [editar]
Convierte un objeto tm a una representación textual personalizada.
(función) [editar]
(C++11)
formatos y las salidas un valor de fecha / tiempo de acuerdo con el formato especificado
Original:
formats and outputs a date/time value according to the specified format
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(plantilla de función) [editar]