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std::ctime

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C++
 
Утилиты библиотеки
 
Дата и время коммунальные услуги
 
C-стиле дату и время коммунальные услуги
Функции
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Functions
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Время манипуляции
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Time manipulation
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difftime
time
clock
Формат преобразования
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Format conversions
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asctime
ctime
strftime
wcsftime
gmtime
localtime
mktime
Константы
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Constants
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CLOCKS_PER_SEC
Типы
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Types
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tm
time_t
clock_t
 
Заголовочный файл <ctime>
char* ctime( const std::time_t* time );
Преобразует заданное время с начала эпохи в календаре по местному времени, а затем в текстовом представлении, как при вызове std::asctime(std::localtime(time)). В результате строка имеет следующий формат:
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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 - день недели (один из 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 - месяц (один из Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec).
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    Mmm - the month (one of Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec).
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  • dd - день месяца
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    dd - the day of the month
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  • hh - часы
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    hh - hours
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  • mm - минуты
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    mm - minutes
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  • ss - секунды
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    ss - seconds
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  • yyyy - лет
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    yyyy - years
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Функция не поддерживает локализацию.
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The function does not support localization.
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Содержание

[править] Параметры

time -
Указатель на std::time_t объекта с указанием времени для печати
Original:
pointer to a std::time_t object specifying the time to print
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[править] Возвращаемое значение

Указатель на статическую нулем строку символов проведения текстовое представление даты и времени. Эта строка может быть разделена между std::asctime и std::ctime, и могут быть перезаписаны при каждом вызове любой из этих функций.
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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[править] Notes

Эта функция возвращает указатель на статические данные и не является поточно-ориентированными. Кроме того, он изменяет статический объект std::tm, которые могут использоваться совместно с std::gmtime и std::localtime. POSIX отмечает эту функцию устаревшей, и рекомендует std::strftime вместо.
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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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Поведение может быть определено для значений time_t, в результате строка длиннее 25 символов (например, год 10000)
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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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[править] Пример

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

Вывод: 

Tue Dec 27 17:21:29 2011

[править] См. также
преобразует tm объекта в текстовое представление
Original:
converts a tm object to a textual representation
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(функция) [edit]
преобразует tm объект пользовательского текстовое представление
Original:
converts a tm object to custom textual representation
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(функция) [edit]
(C++11)
Форматы и выходы значение даты / времени в соответствии с указанным форматом
Original:
formats and outputs a date/time value according to the specified format
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(шаблон функции) [edit]
C документация для ctime
Источник — «http://ru.cppreference.com/mwiki/index.php?title=cpp/chrono/c/ctime&oldid=30589»