towlower(3p) [suse man page]

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

PROLOG

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

NAME

       towlower - transliterate uppercase wide-character code to lowercase

SYNOPSIS

       #include <wctype.h>

       wint_t towlower(wint_t wc);

DESCRIPTION

       The towlower() function has 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 current locale or the value of WEOF. If the argument has any
       other value, the behavior is undefined. If the argument of towlower() represents an uppercase wide-character code, and there exists a  cor-
       responding  lowercase  wide-character  code (as defined by character type information in the program locale category LC_CTYPE ), the result
       shall be the corresponding lowercase wide-character code.  All other arguments in the domain are returned unchanged.

RETURN VALUE

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

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       setlocale(), the Base Definitions volume of IEEE Std 1003.1-2001, Chapter 7, Locale, <wctype.h>, <wchar.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 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 .

IEEE
/The Open Group						       2003							      TOWLOWER(3P)

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

PROLOG

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

NAME

       iswlower - test for a lowercase letter wide-character code

SYNOPSIS

       #include <wctype.h>

       int iswlower(wint_t wc);

DESCRIPTION

       The iswlower() function shall test whether wc is a wide-character code representing a character of class lower  in  the	program's  current
       locale; see the Base Definitions volume of IEEE Std 1003.1-2001, Chapter 7, Locale.

       The wc argument is a wint_t, the value of which the application shall ensure is a wide-character code corresponding to a valid character in
       the current locale, or equal to the value of the macro WEOF. If the argument has any other value, the behavior is undefined.

RETURN VALUE

       The iswlower() function shall return non-zero if wc is a lowercase letter wide-character code; otherwise, it shall return 0.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       To ensure applications portability, especially across natural languages, only this function and those listed in the SEE ALSO section should
       be used for classification of wide-character codes.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       iswalnum(), iswalpha(), iswcntrl(), iswctype(), iswdigit(), iswgraph(), iswprint(), iswpunct(), iswspace(), iswupper(), iswxdigit(), setlo-
       cale(), the Base Definitions volume of IEEE Std 1003.1-2001, Chapter 7, Locale, <wchar.h>, <wctype.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 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 .

IEEE
/The Open Group						       2003							      ISWLOWER(3P)