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TOWLOWER(3P)            POSIX Programmer's Manual           TOWLOWER(3P)

ПРОЛОГ

       This manual page is part of the POSIX Programmer's Manual.  The
       Linux implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior),
       or the interface may not be implemented on Linux.

ИМЯ

       towlower, towlower_l — transliterate uppercase wide-character
       code to lowercase

СИНТАКСИС

       #include <wctype.h>

       wint_t towlower(wint_t wc);
       wint_t towlower_l(wint_t wc, locale_t locale);

ОПИСАНИЕ

       For towlower(): The functionality described on this reference
       page is aligned with the ISO C standard. Any conflict between the
       requirements described here and the ISO C standard is
       unintentional. This volume of POSIX.1‐2017 defers to the ISO C
       standard.

       The towlower() and towlower_l() functions have as a domain a type
       wint_t, the value of which the application shall ensure is a
       character representable as a wchar_t, and a wide-character code
       corresponding to a valid character in the locale used by the
       function or the value of WEOF.  If the argument has any other
       value, the behavior is undefined.  If the argument of towlower()
       or towlower_l() represents an uppercase wide-character code, and
       there exists a corresponding lowercase wide-character code as
       defined by character type information in the current locale or in
       the locale represented by locale, respectively (category
       LC_CTYPE), the result shall be the corresponding lowercase wide-
       character code.  All other arguments in the domain are returned
       unchanged.

       The behavior is undefined if the locale argument to towlower_l()
       is the special locale object LC_GLOBAL_LOCALE or is not a valid
       locale object handle.

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       Upon successful completion, the towlower() and towlower_l()
       functions shall return the lowercase letter corresponding to the
       argument passed; otherwise, they shall return the argument
       unchanged.

ОШИБКИ

       No errors are defined.

       The following sections are informative.

ПРИМЕРЫ

       None.

ИСПОЛЬЗОВАНИЕ В ПРИЛОЖЕНИЯХ

       None.

ОБЪЯСНЕНИЕ

       None.

НАПРАВЛЕНИЯ РАЗВИТИЯ

       None.

СМОТРИТЕ ТАКЖЕ

       setlocale(3p), uselocale(3p)

       The Base Definitions volume of POSIX.1‐2017, Chapter 7, Locale,
       locale.h(0p), wctype.h(0p)

АВТОРСКИЕ ПРАВА

       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1-2017, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018 Edition, Copyright
       (C) 2018 by the Institute of Electrical and Electronics
       Engineers, Inc and The Open Group.  In the event of any
       discrepancy between this version and the original IEEE and The
       Open Group Standard, the original IEEE and The Open Group
       Standard is the referee document. The original Standard can be
       obtained online at http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page
       are most likely to have been introduced during the conversion of
       the source files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group               2017                      TOWLOWER(3P)

Страницы, ссылающиеся на эту страницу: wchar.h(0p), wctype.h(0p), setlocale(3p), towctrans(3p)