iswgraph(3)

1iswgraph(3)                Library Functions Manual                iswgraph(3)
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NAME

6       iswgraph - test for graphic wide character
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LIBRARY

9       Standard C library (libc, -lc)
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SYNOPSIS

12       #include <wctype.h>
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14       int iswgraph(wint_t wc);
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DESCRIPTION

17       The  iswgraph()  function  is  the wide-character equivalent of the is‐
18       graph(3) function.  It tests whether wc is a wide  character  belonging
19       to the wide-character class "graph".
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21       The  wide-character  class  "graph" is a subclass of the wide-character
22       class "print".
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24       Being a subclass of the wide-character class "print", the  wide-charac‐
25       ter class "graph" is disjoint from the wide-character class "cntrl".
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27       The  wide-character  class  "graph" is disjoint from the wide-character
28       class "space" and therefore also disjoint from its subclass "blank".
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30       The wide-character class "graph" contains all the wide characters  from
31       the wide-character class "print" except the space character.  It there‐
32       fore contains the wide-character classes "alnum" and "punct".
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RETURN VALUE

35       The iswgraph() function returns nonzero if wc is a wide  character  be‐
36       longing  to  the  wide-character  class "graph".  Otherwise, it returns
37       zero.
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ATTRIBUTES

40       For an  explanation  of  the  terms  used  in  this  section,  see  at‐
41       tributes(7).
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43       ┌─────────────────────────────────────┬───────────────┬────────────────┐
44       │Interface                            │ Attribute     │ Value          │
45       ├─────────────────────────────────────┼───────────────┼────────────────┤
46       │iswgraph()                           │ Thread safety │ MT-Safe locale │
47       └─────────────────────────────────────┴───────────────┴────────────────┘
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STANDARDS

50       C11, POSIX.1-2008.
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HISTORY

53       POSIX.1-2001, C99.
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NOTES

56       The behavior of iswgraph() depends on the LC_CTYPE category of the cur‐
57       rent locale.
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