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Интерактивная система просмотра системных руководств (man-ов)

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iswctype (3)
  • >> iswctype (3) ( Solaris man: Библиотечные вызовы )
  • iswctype (3) ( FreeBSD man: Библиотечные вызовы )
  • iswctype (3) ( Русские man: Библиотечные вызовы )
  • iswctype (3) ( Linux man: Библиотечные вызовы )
  • iswctype (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    iswctype - test character for specified class
     
    

    SYNOPSIS

    #include <wchar.h> 
    
    int iswctype(wint_t wc, wctype_t charclass);
    

     

    DESCRIPTION

    The iswctype() function determines whether the wide-character code wc has the character class charclass, returning TRUE or FALSE. The iswctype() function is defined on WEOF and wide-character codes corresponding to the valid character encodings in the current locale. If the wc argument is not in the domain of the function, the result is undefined. If the value of charclass is invalid (that is, not obtained by a call to wctype(3C) or charclass is invalidated by a subsequent call to setlocale(3C) that has affected category LC_CTYPE), the result is indeterminate.  

    RETURN VALUES

    The iswctype() function returns 0 for FALSE and non-zero for TRUE.  

    USAGE

    There are twelve strings that are reserved for the standard character classes:

    "alnum""alpha""blank"

    "cntrl""digit""graph"

    "lower"

    "space"

    In the table below, the functions in the left column are equivalent to the functions in the right column.

    iswalnum(wc)iswctype(wc, wctype("alnum"))
    iswalpha(wc)iswctype(wc, wctype("alpha"))
    iswcntrl(wc)
    iswdigit( wc)
    iswgraph(wc)
    iswlower(wc)
    iswprint(wc)
    iswpunct(wc)
    iswspace(wc)
    iswupper(wc)
    iswxdigit(wc)

    The call

    iswctype(wc, wctype("blank"))

    does not have an equivalent isw*() function.  

    ATTRIBUTES

    See attributes(5) for descriptions of the following attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    CSIEnabled

    Interface Stability

    MT-Level

     

    SEE ALSO

    iswalpha(3C), setlocale(3C), wctype(3C), attributes(5), environ(5), standards(5)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    USAGE
    ATTRIBUTES
    SEE ALSO


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