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std::ctime

提供: cppreference.com
< cpp‎ | chrono‎ | c

 
 
ユーティリティライブラリ
支援を入力します (basic types, RTTI, type traits)
動的なメモリ管理
エラー処理
プログラムユーティリティ
可変個引数関数
日付と時刻
関数オブジェクト
initializer_list(C++11)
bitset
hash(C++11)
関係演算子
Original:
Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
ペアとタプル
Original:
Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
フォワード、スワップ、および移動
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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形式の日付と時刻のユーティリティ
機能します
Original:
Functions
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時間操作
Original:
Time manipulation
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difftime
time
clock
フォーマット変換
Original:
Format conversions
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asctime
ctime
strftime
wcsftime
gmtime
localtime
mktime
定数
Original:
Constants
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CLOCKS_PER_SEC
タイプ
Original:
Types
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tm
time_t
clock_t
 
Defined in header <ctime>
char* ctime( const std::time_t* time );
std::asctime(std::localtime(time))を呼び出したかのように、カレンダーをローカル時間にしてから、テキスト表現にエポックからの経過時間を与えられたに変換します。結果の文字列の形式は次のとおりです
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 - 曜日(Monの一つ、TueWedThuFriSatSun).
    Original:
    Www - the day of the week (one of Mon, Tue, Wed, Thu, Fri, Sat, Sun).
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  • Mmm - 月(Janの一つ、FebMarAprMayJunJulAugSepOctNovDec).
    Original:
    Mmm - the month (one of Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec).
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  • dd - 月の日
    Original:
    dd - the day of the month
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  • hh - 時間
    Original:
    hh - hours
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  • mm - 分
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    mm - minutes
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  • ss - 秒
    Original:
    ss - seconds
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  • yyyy - 年
    Original:
    yyyy - years
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この関数は、ローカリゼーションをサポートしていません.
Original:
The function does not support localization.
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目次

[編集] パラメータ

time -
印刷する時間を指定してstd::time_tオブジェクトへのポインタを返します
Original:
pointer to a std::time_t object specifying the time to print
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[編集] 値を返します

日付と時刻のテキスト表現を保持する静的ヌル終端の文字列へのポインタ。文字列はstd::asctimestd::ctime間で共有することができ、これらの機能のいずれかを呼び出すたびに上書きされる可能性があります.
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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[編集] ノート

この関数は、静的データへのポインタを返し、スレッドセーフではありません。また、std::tmstd::gmtimeと共有することができる静的なstd::localtimeオブジェクトを変更します。 POSIXでは、この関数は廃止されたとマークして、代わりにstd::strftimeお勧め.
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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挙動は、time_t型の値は文字列で、その結果より長い25文字(例:年間10000)のために定義されていないかもしれません
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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[編集]

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

Output:

Tue Dec 27 17:21:29 2011

[編集] も参照してください

テキスト表現にtmオブジェクトを変換します
Original:
converts a tm object to a textual representation
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(機能) [edit]
カスタムテキスト表現にtmオブジェクトを変換します
Original:
converts a tm object to custom textual representation
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(機能) [edit]
(C++11)
フォーマットと指定された書式に従って日付/時刻の値を出力します
Original:
formats and outputs a date/time value according to the specified format
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(関数テンプレート) [edit]
C documentation for ctime