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std::asctime

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< cpp‎ | chrono‎ | c

 
 
Biblioteca de utilitários
Digite apoio (basic types, RTTI, type traits)
Gerenciamento de memória dinâmica
De tratamento de erros
Utilidades do programa
Variadic funções
Data e hora
Objetos de função
initializer_list(C++11)
bitset
hash(C++11)
Os operadores relacionais
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Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Pares e tuplas
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Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Troque, avançar e avançar
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Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
 
C estilo de utilitários de data e hora
Funções
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Functions
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Manipulação do tempo
Original:
Time manipulation
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difftime
time
clock
Conversões de formato
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Format conversions
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asctime
ctime
strftime
wcsftime
gmtime
localtime
mktime
Constantes
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Constants
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CLOCKS_PER_SEC
Tipos
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Types
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tm
time_t
clock_t
 
Defined in header <ctime>
char* asctime( const std::tm* time_ptr );
Converte dado std::tm tempo calendário para uma representação textual.
Original:
Converts given calendar time std::tm to a textual representation.
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A seqüência resultante tem o seguinte formato:
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The resulting string has the following format:
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Www Mmm dd hh:mm:ss yyyy
  • Www - o dia da semana (um dos 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 - o mês (um dos 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 - o dia do mês
    Original:
    dd - the day of the month
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  • hh - horas
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    hh - hours
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  • mm - minutos
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    mm - minutes
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  • ss - segundos
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    ss - seconds
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  • yyyy - anos
    Original:
    yyyy - years
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A função não suporta localização.
Original:
The function does not support localization.
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Índice

[editar] Parâmetros

time_ptr -
ponteiro para um objeto std::tm especificando o tempo para imprimir
Original:
pointer to a std::tm object specifying the time to print
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[editar] Valor de retorno

Ponteiro para uma cadeia de caracteres estática terminada em nulo segurando a representação textual de data e hora. A seqüência pode ser compartilhado entre std::asctime e std::ctime, e pode ser substituído em cada invocação de qualquer dessas funções.
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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[editar] Notas

Esta função retorna um ponteiro para dados estáticos e não é thread-safe. POSIX marca esta função obsoleta e recomenda std::strftime vez.
Original:
This function returns a pointer to static data and is not thread-safe. POSIX marks this function obsolete and recommends std::strftime instead.
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O comportamento é indefinido se a cadeia de produção seria maior que 25 caracteres, se timeptr->tm_wday ou timeptr->tm_mon não estão dentro do prazo previsto, ou se excede timeptr->tm_year INT_MAX-1990.
Original:
The behavior is undefined if the output string would be longer than 25 characters, if timeptr->tm_wday or timeptr->tm_mon are not within the expected ranges, or if timeptr->tm_year exceeds INT_MAX-1990.
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Algumas implementações de lidar com timeptr->tm_mday==0 no sentido de o último dia do mês anterior.
Original:
Some implementations handle timeptr->tm_mday==0 as meaning the last day of the preceding month.
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[editar] Exemplo

#include <ctime>
#include <iostream>
 
int main()
{
    std::time_t result = std::time(NULL);
    std::cout << std::asctime(std::localtime(&result));
}

Output:

Tue Dec 27 16:45:52 2011

[editar] Veja também

converte um objeto time_t a uma representação textual
Original:
converts a time_t object to a textual representation
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(função) [edit]
converte um objeto tm a representação textual personalizado
Original:
converts a tm object to custom textual representation
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(função) [edit]
(C++11)
formatos e saídas de um valor de data / hora de acordo com o formato especificado
Original:
formats and outputs a date/time value according to the specified format
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(modelo de função) [edit]
C documentation for asctime