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    std::setlocale

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    <metanoindex/>

     
    C++
     
    Lokalisierungen Bibliothek
    Locales und Facetten
    Original:
    Locales and facets
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    locale
    Buchstaben-Klassifikation
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    Character classification
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    Conversions
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    Conversions
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    Facet Kategorie Basisklassen
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    Facet category base classes
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    Facet Kategorien
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    Facet categories
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    Locale-spezifische Facetten
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    Locale-specific facets
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    Code-Konvertierung Facetten
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    Code conversion facets
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    codecvt_utf8(C++11)
    codecvt_utf16(C++11)
    C locale
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    C locale
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    <tbody> </tbody>
    definiert in Header <clocale>
    char* setlocale( int category, const char* locale);
    Die setlocale Funktion installiert das angegebene Gebietsschema oder einem Teil davon, wie die neue C locale. Die Änderungen bleiben wirksam und beeinflusst die Ausführung aller locale-sensitive C-Library-Funktionen bis zum nächsten Aufruf setlocale. Wenn locale ein NULL-Zeiger ist, fragt setlocale die aktuelle C locale ohne es zu ändern .
    Original:
    The setlocale function installs the specified system locale or its portion as the new C locale. The modifications remain in effect and influences the execution of all locale-sensitive C library functions until the next call to setlocale. If locale is a null pointer, setlocale queries the current C locale without modifying it.
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    Parameter

    category -
    locale category Kennung, einer der
    LC_xxx
    Original:
    LC_xxx
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     Makros. Kann null .
    Original:
    locale category identifier, one of the
    LC_xxx
    Original:
    LC_xxx
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     macros. May be null.
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    locale -
    system-spezifische Gebietsschemas enthält. Kann "" für den Benutzer bevorzugten Gebietsschema oder "C" für die minimale locale
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    system-specific locale identifier. Can be "" for the user-preferred locale or "C" for the minimal locale
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    Rückgabewert

    Pointer auf einen schmalen null-terminierten String Identifizierung des C locale nach dem Anwenden der Änderungen, falls vorhanden, oder NULL-Zeiger bei Ausfall .
    Original:
    Pointer to a narrow null-terminated string identifying the C locale after applying the changes, if any, or null pointer on failure.
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    Notes

    Während Programmstart, das Äquivalent von std::setlocale(LC_ALL, "C"); wird ausgeführt, bevor ein Benutzer Code ausgeführt wird .
    Original:
    During program startup, the equivalent of std::setlocale(LC_ALL, "C"); is executed before any user code is run.
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    Obwohl der Rückgabetyp ist char*, Änderung der spitzen-to-Zeichen ist undefiniert .
    Original:
    Although the return type is char*, modifying the pointed-to characters is undefined behavior.
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    Weil setlocale verändert globalen Staat, wirkt Ausführung von locale-abhängige Funktionen ist es nicht definiertes Verhalten, um es von einem Thread nennen, während ein anderer Thread ausgeführt wird eine der folgenden Funktionen: std::fprintf, std::isprint, std::iswdigit, std::localeconv, std::tolower, std::fscanf, std::ispunct, std::iswgraph, std::mblen, std::toupper, std::isalnum, std::isspace, std::iswlower, std::mbstowcs, std::towlower, std::isalpha, std::isupper, std::iswprint, std::mbtowc, std::towupper, std::isblank, std::iswalnum, std::iswpunct, std::setlocale, std::wcscoll, std::iscntrl, std::iswalpha, std::iswspace, std::strcoll, std::wcstod, std::isdigit, std::iswblank, std::iswupper, std::strerror, std::wcstombs, std::isgraph, std::iswcntrl, std::iswxdigit, std::strtod, std::wcsxfrm, std::islower, std::iswctype, std::isxdigit .
    Original:
    Because setlocale modifies global state which affects execution of locale-dependent functions, it is undefined behavior to call it from one thread, while another thread is executing any of the following functions: std::fprintf, std::isprint, std::iswdigit, std::localeconv, std::tolower, std::fscanf, std::ispunct, std::iswgraph, std::mblen, std::toupper, std::isalnum, std::isspace, std::iswlower, std::mbstowcs, std::towlower, std::isalpha, std::isupper, std::iswprint, std::mbtowc, std::towupper, std::isblank, std::iswalnum, std::iswpunct, std::setlocale, std::wcscoll, std::iscntrl, std::iswalpha, std::iswspace, std::strcoll, std::wcstod, std::isdigit, std::iswblank, std::iswupper, std::strerror, std::wcstombs, std::isgraph, std::iswcntrl, std::iswxdigit, std::strtod, std::wcsxfrm, std::islower, std::iswctype, std::isxdigit.
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    Beispiel

    #include <cstdio>
#include <clocale>
#include <ctime>
#include <cwchar>

int main()
{
    // the C locale will be UTF-8 enabled English;
    // decimal dot will be German
    // date and time formatting will be Japanese
    std::setlocale(LC_ALL, "en_US.UTF-8");
    std::setlocale(LC_NUMERIC, "de_DE");
    std::setlocale(LC_TIME, "ja_JP");

    wchar_t str[100];
    std::time_t t = std::time(NULL);
    std::wcsftime(str, 100, L"%A %c", std::localtime(&t));
    std::wprintf(L"Number: %.2f\nDate: %Ls\n", 3.14, str);
}

    Output: 

    Number: 3,14
Date: 月曜日 2011年12月19日 18時04分40秒

    Siehe auch
    locale Kategorien für std::setlocale
    Original:
    locale categories for std::setlocale
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    (Makro konstant) [edit]
    eingestellt von polymorphen Facetten, die kulturellen Unterschiede zu kapseln
    Original:
    set of polymorphic facets that encapsulate cultural differences
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    (Klasse) [edit]
    C documentation for setlocale