1iswctype(3C)             Standard C Library Functions             iswctype(3C)
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NAME

6       iswctype - test character for specified class
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SYNOPSIS

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

15       The  iswctype()  function determines whether the wide-character code wc
16       has the character class charclass, returning TRUE or FALSE.  The  iswc‐
17       type() function is defined on WEOF and wide-character codes correspond‐
18       ing to the valid character encodings in the current locale. If  the  wc
19       argument is not in the domain of the function, the result is undefined.
20       If the value of charclass is invalid (that is, not obtained by  a  call
21       to wctype(3C) or charclass  is invalidated by a subsequent call to set‐
22       locale(3C) that has affected category LC_CTYPE), the result is indeter‐
23       minate.
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RETURN VALUES

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

29       There  are  twelve strings that are reserved for the standard character
30       classes:
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34                           │                    │
35       "alnum"             │"alpha"             │ "blank"
36       ────────────────────┼────────────────────┼────────────────────
37       "cntrl"             │"digit"             │ "graph"
38       ────────────────────┼────────────────────┼────────────────────
39       "lower"             │"print"             │ "punct"
40       ────────────────────┼────────────────────┼────────────────────
41       "space"             │"upper"             │ "xdigit"
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45       In the table below, the functions in the left column are equivalent  to
46       the functions in the right column.
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51       iswalnum(wc)                  iswctype(wc, wctype("alnum"))
52       iswalpha(wc)                  iswctype(wc, wctype("alpha"))
53       iswcntrl(wc)                  iswctype(wc, wctype("cntrl"))
54       iswdigit( wc)                 iswctype(wc, wctype("digit"))
55       iswgraph(wc)                  iswctype(wc, wctype("graph"))
56       iswlower(wc)                  iswctype(wc, wctype("lower"))
57       iswprint(wc)                  iswctype(wc, wctype("print"))
58       iswpunct(wc)                  iswctype( wc, wctype("punct"))
59       iswspace(wc)                  iswctype(wc, wctype("space"))
60       iswupper(wc)                  iswctype(wc, wctype("upper"))
61       iswxdigit(wc)                 iswctype(wc, wctype("xdigit"))
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65       The call
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68       iswctype(wc, wctype("blank"))
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71       does not have an equivalent  isw*() function.
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ATTRIBUTES

74       See attributes(5) for descriptions of the following attributes:
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79       ┌─────────────────────────────┬─────────────────────────────┐
80       │ATTRIBUTE TYPE               │ATTRIBUTE VALUE              │
81       ├─────────────────────────────┼─────────────────────────────┤
82       │CSI                          │Enabled                      │
83       ├─────────────────────────────┼─────────────────────────────┤
84       │Interface Stability          │Standard                     │
85       ├─────────────────────────────┼─────────────────────────────┤
86       │MT-Level                     │MT-Safe with exceptions      │
87       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

90       iswalpha(3C),  setlocale(3C),  wctype(3C),  attributes(5),  environ(5),
91       standards(5)
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95SunOS 5.11                        24 Jul 2002                     iswctype(3C)
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