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std::wcsftime

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C++
 
Utilities-Bibliothek
 
Datum und Uhrzeit Versorgungsunternehmen
 
C-style Datum und Uhrzeit Versorgungsunternehmen
Funktionen
Original:
Functions
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Zeit Manipulation
Original:
Time manipulation
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difftime
time
clock
Format Konvertierungen
Original:
Format conversions
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asctime
ctime
strftime
wcsftime
gmtime
localtime
mktime
Konstanten
Original:
Constants
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CLOCKS_PER_SEC
Types
Original:
Types
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tm
time_t
clock_t
 
definiert in Header <cwchar>
std::size_t wcsftime( wchar_t* str, std::size_t count, const wchar_t* format, std::tm* time );
Konvertiert das Datum und die Uhrzeit von einem bestimmten Kalenderjahr Zeit time auf NULL-terminierten breite Zeichenfolge str nach Format-String format. Bis zu count Byte geschrieben werden .
Original:
Converts the date and time information from a given calendar time time to a null-terminated wide character string str according to format string format. Up to count bytes are written.
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Inhaltsverzeichnis

[Bearbeiten] Parameter

str -
Zeiger auf das erste Element des Arrays wchar_t für die Ausgabe
Original:
pointer to the first element of the wchar_t array for output
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count -
maximale Anzahl von breiten Zeichen zu schreiben
Original:
maximum number of wide characters to write
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format -
Zeiger auf einen null-terminierten breite Zeichenfolge Festlegung des Formats für Konvertierung.
Der Format-String besteht aus null oder mehr Umwandlungsspezifikatoren und gewöhnlichen Zeichen (außer %). Alle gewöhnlichen Zeichen, einschließlich des abschließenden Null-Zeichen, sind mit dem Ausgang String ohne Änderungen kopiert. Jede Konvertierung Spezifikation beginnt mit % Charakter, gegebenenfalls gefolgt von E oder O Modifier (ignoriert, wenn nicht durch die locale), gefolgt von dem Zeichen, die das Verhalten der Planer bestimmt. Die folgenden Formatangaben stehen zur Verfügung:
Original:
The format string consists of zero or more conversion specifiers and ordinary characters (except %). All ordinary characters, including the terminating null character, are copied to the output string without modification. Each conversion specification begins with % character, optionally followed by E or O modifier (ignored if unsupported by the locale), followed by the character that determines the behavior of the specifier. The following format specifiers are available:
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Conversion
specifier 		Explanation Used fields
% writes literal %. The full conversion specification must be %%.
n(C++11) writes newline character
t(C++11) writes horizontal tab character
Year
Y writes year as a 4 digit decimal number tm_year
EY(C++11) writes year in the alternative representation, e.g.平成23年 (year Heisei 23) instead of 2011年 (year 2011) in ja_JP locale tm_year
y writes last 2 digits of year as a decimal number (range [00,99]) tm_year
Oy(C++11) writes last 2 digits of year using the alternative numeric system, e.g. 十一 instead of 11 in ja_JP locale tm_year
Ey(C++11) writes year as offset from locale's alternative calendar period %EC (locale-dependent) tm_year
C(C++11) writes first 2 digits of year as a decimal number (range [00,99]) tm_year
EC(C++11) writes name of the base year (period) in the locale's alternative representation, e.g. 平成 (Heisei era) in ja_JP tm_year
G(C++11) writes ISO 8601 week-based year, i.e. the year that contains the specified week.
In IS0 8601 Wochen beginnt mit Montag und die erste Woche des Jahres muss die folgenden Anforderungen erfüllen:
Original:
In IS0 8601 weeks begin with Monday and the first week of the year must satisfy the following requirements:
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  • Inklusive 4. Januar
    Original:
    Includes January 4
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  • Beinhaltet ersten Donnerstag des Jahres
    Original:
    Includes first Thursday of the year
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 tm_year, tm_wday, tm_yday
g(C++11) writes last 2 digits of ISO 8601 week-based year, i.e. the year that contains the specified week (range [00,99]).
In IS0 8601 Wochen beginnt mit Montag und die erste Woche des Jahres muss die folgenden Anforderungen erfüllen:
Original:
In IS0 8601 weeks begin with Monday and the first week of the year must satisfy the following requirements:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
  • Inklusive 4. Januar
    Original:
    Includes January 4
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • Beinhaltet ersten Donnerstag des Jahres
    Original:
    Includes first Thursday of the year
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
 tm_year, tm_wday, tm_yday
Month
b writes abbreviated month name, e.g. Oct (locale dependent) tm_mon
h(C++11) synonym of b tm_mon
B writes full month name, e.g. October (locale dependent) tm_mon
m writes month as a decimal number (range [01,12]) tm_mon
Om(C++11) writes month using the alternative numeric system, e.g. 十二 instead of 12 in ja_JP locale tm_mon
Week
U writes week of the year as a decimal number (Sunday is the first day of the week) (range [00,53]) tm_year, tm_wday, tm_yday
OU(C++11) writes week of the year, as by %U, using the alternative numeric system, e.g. 五十二 instead of 52 in ja_JP locale tm_year, tm_wday, tm_yday
W writes week of the year as a decimal number (Monday is the first day of the week) (range [00,53]) tm_year, tm_wday, tm_yday
OW(C++11) writes week of the year, as by %W, using the alternative numeric system, e.g. 五十二 instead of 52 in ja_JP locale tm_year, tm_wday, tm_yday
V(C++11) writes ISO 8601 week of the year (range [01,53]).
In IS0 8601 Wochen beginnt mit Montag und die erste Woche des Jahres muss die folgenden Anforderungen erfüllen:
Original:
In IS0 8601 weeks begin with Monday and the first week of the year must satisfy the following requirements:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
  • Inklusive 4. Januar
    Original:
    Includes January 4
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • Beinhaltet ersten Donnerstag des Jahres
    Original:
    Includes first Thursday of the year
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
 tm_year, tm_wday, tm_yday
OV(C++11) writes week of the year, as by %V, using the alternative numeric system, e.g. 五十二 instead of 52 in ja_JP locale tm_year, tm_wday, tm_yday
Day of the year/month
j writes day of the year as a decimal number (range [001,366]) tm_yday
d writes day of the month as a decimal number (range [01,31]) tm_mday
Od(C++11) writes zero-based day of the month using the alternative numeric system, e.g 二十七 instead of 23 in ja_JP locale
Einzel-Charakter wird durch ein Leerzeichen .
Original:
Single character is preceded by a space.
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 tm_mday
e(C++11) writes day of the month as a decimal number (range [1,31]).
Einstelligen wird durch ein Leerzeichen .
Original:
Single digit is preceded by a space.
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 tm_mday
Oe(C++11) writes one-based day of the month using the alternative numeric system, e.g. 二十七 instead of 27 in ja_JP locale
Einzel-Charakter wird durch ein Leerzeichen .
Original:
Single character is preceded by a space.
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 tm_mday
Day of the week
a writes abbreviated weekday name, e.g. Fri (locale dependent) tm_wday
A writes full weekday name, e.g. Friday (locale dependent) tm_wday
w writes weekday as a decimal number, where Sunday is 0 (range [0-6]) tm_wday
Ow(C++11) writes weekday, where Sunday is 0, using the alternative numeric system, e.g. 二 instead of 2 in ja_JP locale tm_wday
u(C++11) writes weekday as a decimal number, where Monday is 1 (ISO 8601 format) (range [1-7]) tm_wday
Ou(C++11) writes weekday, where Monday is 1, using the alternative numeric system, e.g. 二 instead of 2 in ja_JP locale tm_wday
Hour, minute, second
H writes hour as a decimal number, 24 hour clock (range [00-23]) tm_hour
OH(C++11) writes hour from 24-hour clock using the alternative numeric system, e.g. 十八 instead of 18 in ja_JP locale tm_hour
I writes hour as a decimal number, 12 hour clock (range [01,12]) tm_hour
OI(C++11) writes hour from 12-hour clock using the alternative numeric system, e.g. 六 instead of 06 in ja_JP locale tm_hour
M writes minute as a decimal number (range [00,59]) tm_min
OM(C++11) writes minute using the alternative numeric system, e.g. 二十五 instead of 25 in ja_JP locale tm_min
S writes second as a decimal number (range [00,60]) tm_sec
OS(C++11) writes second using the alternative numeric system, e.g. 二十四 instead of 24 in ja_JP locale tm_sec
Other
c writes standard date and time string, e.g. Sun Oct 17 04:41:13 2010 (locale dependent) all
Ec(C++11) writes alternative date and time string, e.g. using 平成23年 (year Heisei 23) instead of 2011年 (year 2011) in ja_JP locale all
x writes localized date representation (locale dependent) all
Ex(C++11) writes alternative date representation, e.g. using 平成23年 (year Heisei 23) instead of 2011年 (year 2011) in ja_JP locale all
X writes localized time representation (locale dependent) all
EX(C++11) writes alternative time representation (locale dependent) all
D(C++11) equivalent to "%m/%d/%y" tm_mon, tm_mday, tm_year
F(C++11) equivalent to "%Y-%m-%d" (the ISO 8601 date format) tm_mon, tm_mday, tm_year
r(C++11) writes localized 12-hour clock time (locale dependent) tm_hour, tm_min, tm_sec
R(C++11) equivalent to "%H:%M" tm_hour, tm_min
T(C++11) equivalent to "%H:%M:%S" (the ISO 8601 time format) tm_hour, tm_min, tm_sec
p writes localized a.m. or p.m. (locale dependent) tm_hour
z(C++11) writes offset from UTC in the ISO 8601 format (e.g. -0430), or no characters if the time zone information is not available tm_isdst
Z writes time zone name or abbreviation, or no characters if the time zone information is not available (locale dependent) tm_isdst
Original:
pointer to a null-terminated wide character string specifying the format of conversion.
Der Format-String besteht aus null oder mehr Umwandlungsspezifikatoren und gewöhnlichen Zeichen (außer %). Alle gewöhnlichen Zeichen, einschließlich des abschließenden Null-Zeichen, sind mit dem Ausgang String ohne Änderungen kopiert. Jede Konvertierung Spezifikation beginnt mit % Charakter, gegebenenfalls gefolgt von E oder O Modifier (ignoriert, wenn nicht durch die locale), gefolgt von dem Zeichen, die das Verhalten der Planer bestimmt. Die folgenden Formatangaben stehen zur Verfügung:
Original:
The format string consists of zero or more conversion specifiers and ordinary characters (except %). All ordinary characters, including the terminating null character, are copied to the output string without modification. Each conversion specification begins with % character, optionally followed by E or O modifier (ignored if unsupported by the locale), followed by the character that determines the behavior of the specifier. The following format specifiers are available:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Conversion
specifier 		Explanation Used fields
% writes literal %. The full conversion specification must be %%.
n(C++11) writes newline character
t(C++11) writes horizontal tab character
Year
Y writes year as a 4 digit decimal number tm_year
EY(C++11) writes year in the alternative representation, e.g.平成23年 (year Heisei 23) instead of 2011年 (year 2011) in ja_JP locale tm_year
y writes last 2 digits of year as a decimal number (range [00,99]) tm_year
Oy(C++11) writes last 2 digits of year using the alternative numeric system, e.g. 十一 instead of 11 in ja_JP locale tm_year
Ey(C++11) writes year as offset from locale's alternative calendar period %EC (locale-dependent) tm_year
C(C++11) writes first 2 digits of year as a decimal number (range [00,99]) tm_year
EC(C++11) writes name of the base year (period) in the locale's alternative representation, e.g. 平成 (Heisei era) in ja_JP tm_year
G(C++11) writes ISO 8601 week-based year, i.e. the year that contains the specified week.
In IS0 8601 Wochen beginnt mit Montag und die erste Woche des Jahres muss die folgenden Anforderungen erfüllen:
Original:
In IS0 8601 weeks begin with Monday and the first week of the year must satisfy the following requirements:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
  • Inklusive 4. Januar
    Original:
    Includes January 4
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • Beinhaltet ersten Donnerstag des Jahres
    Original:
    Includes first Thursday of the year
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
 tm_year, tm_wday, tm_yday
g(C++11) writes last 2 digits of ISO 8601 week-based year, i.e. the year that contains the specified week (range [00,99]).
In IS0 8601 Wochen beginnt mit Montag und die erste Woche des Jahres muss die folgenden Anforderungen erfüllen:
Original:
In IS0 8601 weeks begin with Monday and the first week of the year must satisfy the following requirements:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
  • Inklusive 4. Januar
    Original:
    Includes January 4
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • Beinhaltet ersten Donnerstag des Jahres
    Original:
    Includes first Thursday of the year
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
 tm_year, tm_wday, tm_yday
Month
b writes abbreviated month name, e.g. Oct (locale dependent) tm_mon
h(C++11) synonym of b tm_mon
B writes full month name, e.g. October (locale dependent) tm_mon
m writes month as a decimal number (range [01,12]) tm_mon
Om(C++11) writes month using the alternative numeric system, e.g. 十二 instead of 12 in ja_JP locale tm_mon
Week
U writes week of the year as a decimal number (Sunday is the first day of the week) (range [00,53]) tm_year, tm_wday, tm_yday
OU(C++11) writes week of the year, as by %U, using the alternative numeric system, e.g. 五十二 instead of 52 in ja_JP locale tm_year, tm_wday, tm_yday
W writes week of the year as a decimal number (Monday is the first day of the week) (range [00,53]) tm_year, tm_wday, tm_yday
OW(C++11) writes week of the year, as by %W, using the alternative numeric system, e.g. 五十二 instead of 52 in ja_JP locale tm_year, tm_wday, tm_yday
V(C++11) writes ISO 8601 week of the year (range [01,53]).
In IS0 8601 Wochen beginnt mit Montag und die erste Woche des Jahres muss die folgenden Anforderungen erfüllen:
Original:
In IS0 8601 weeks begin with Monday and the first week of the year must satisfy the following requirements:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
  • Inklusive 4. Januar
    Original:
    Includes January 4
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • Beinhaltet ersten Donnerstag des Jahres
    Original:
    Includes first Thursday of the year
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
 tm_year, tm_wday, tm_yday
OV(C++11) writes week of the year, as by %V, using the alternative numeric system, e.g. 五十二 instead of 52 in ja_JP locale tm_year, tm_wday, tm_yday
Day of the year/month
j writes day of the year as a decimal number (range [001,366]) tm_yday
d writes day of the month as a decimal number (range [01,31]) tm_mday
Od(C++11) writes zero-based day of the month using the alternative numeric system, e.g 二十七 instead of 23 in ja_JP locale
Einzel-Charakter wird durch ein Leerzeichen .
Original:
Single character is preceded by a space.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 tm_mday
e(C++11) writes day of the month as a decimal number (range [1,31]).
Einstelligen wird durch ein Leerzeichen .
Original:
Single digit is preceded by a space.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 tm_mday
Oe(C++11) writes one-based day of the month using the alternative numeric system, e.g. 二十七 instead of 27 in ja_JP locale
Einzel-Charakter wird durch ein Leerzeichen .
Original:
Single character is preceded by a space.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 tm_mday
Day of the week
a writes abbreviated weekday name, e.g. Fri (locale dependent) tm_wday
A writes full weekday name, e.g. Friday (locale dependent) tm_wday
w writes weekday as a decimal number, where Sunday is 0 (range [0-6]) tm_wday
Ow(C++11) writes weekday, where Sunday is 0, using the alternative numeric system, e.g. 二 instead of 2 in ja_JP locale tm_wday
u(C++11) writes weekday as a decimal number, where Monday is 1 (ISO 8601 format) (range [1-7]) tm_wday
Ou(C++11) writes weekday, where Monday is 1, using the alternative numeric system, e.g. 二 instead of 2 in ja_JP locale tm_wday
Hour, minute, second
H writes hour as a decimal number, 24 hour clock (range [00-23]) tm_hour
OH(C++11) writes hour from 24-hour clock using the alternative numeric system, e.g. 十八 instead of 18 in ja_JP locale tm_hour
I writes hour as a decimal number, 12 hour clock (range [01,12]) tm_hour
OI(C++11) writes hour from 12-hour clock using the alternative numeric system, e.g. 六 instead of 06 in ja_JP locale tm_hour
M writes minute as a decimal number (range [00,59]) tm_min
OM(C++11) writes minute using the alternative numeric system, e.g. 二十五 instead of 25 in ja_JP locale tm_min
S writes second as a decimal number (range [00,60]) tm_sec
OS(C++11) writes second using the alternative numeric system, e.g. 二十四 instead of 24 in ja_JP locale tm_sec
Other
c writes standard date and time string, e.g. Sun Oct 17 04:41:13 2010 (locale dependent) all
Ec(C++11) writes alternative date and time string, e.g. using 平成23年 (year Heisei 23) instead of 2011年 (year 2011) in ja_JP locale all
x writes localized date representation (locale dependent) all
Ex(C++11) writes alternative date representation, e.g. using 平成23年 (year Heisei 23) instead of 2011年 (year 2011) in ja_JP locale all
X writes localized time representation (locale dependent) all
EX(C++11) writes alternative time representation (locale dependent) all
D(C++11) equivalent to "%m/%d/%y" tm_mon, tm_mday, tm_year
F(C++11) equivalent to "%Y-%m-%d" (the ISO 8601 date format) tm_mon, tm_mday, tm_year
r(C++11) writes localized 12-hour clock time (locale dependent) tm_hour, tm_min, tm_sec
R(C++11) equivalent to "%H:%M" tm_hour, tm_min
T(C++11) equivalent to "%H:%M:%S" (the ISO 8601 time format) tm_hour, tm_min, tm_sec
p writes localized a.m. or p.m. (locale dependent) tm_hour
z(C++11) writes offset from UTC in the ISO 8601 format (e.g. -0430), or no characters if the time zone information is not available tm_isdst
Z writes time zone name or abbreviation, or no characters if the time zone information is not available (locale dependent) tm_isdst
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[Bearbeiten] Rückgabewert

Anzahl der weiten Zeichen in das Wide-Character-Array geschrieben, auf die str ohne das abschließende L'\0' auf Erfolg. Wenn count erreicht wurde, bevor der gesamte String gespeichert werden könnten, wird ​0​ zurückgekehrt und die Inhalte sind nicht definiert .
Original:
Number of wide characters written into the wide character array pointed to by str not including the terminating L'\0' on success. If count was reached before the entire string could be stored, ​0​ is returned and the contents are undefined.
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[Bearbeiten] Beispiel

#include <ctime>
#include <cwchar>
#include <iostream>
#include <locale>
 
int main()
{
    std::locale::global(std::locale("ja_JP.utf8"));
    std::time_t t = std::time(NULL);
    wchar_t wstr[100];
    if(std::wcsftime(wstr, 100, L"%A %c", std::localtime(&t))) {
        std::wcout << wstr << '\n';
    }
}

Output: 

火曜日 2011年12月27日 17時43分13秒

[Bearbeiten] Siehe auch
wandelt eine tm Objekt benutzerdefinierte textuelle Repräsentation
Original:
converts a tm object to custom textual representation
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(Funktion) [edit]
(C++11)
Formate und gibt ein Datum / Zeit-Wert nach dem angegebenen Format
Original:
formats and outputs a date/time value according to the specified format
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You can help to correct and verify the translation. Click here for instructions.

(Funktions-Template) [edit]
C documentation for wcsftime
Von „https://de.cppreference.com/mwiki/index.php?title=cpp/chrono/c/wcsftime&oldid=26185“