iswgraph — test for graphic wide character
Synopsis
#include <wctype.h> int iswgraph(wint_t wc);
Description
The iswgraph() function is the wide-character equivalent of the isgraph(3) function. It tests whether wc is a wide character belonging to the wide-character class "graph".
The wide-character class "graph" is a subclass of the wide-character class "print".
Being a subclass of the wide-character class "print", the wide-character class "graph" is disjoint from the wide-character class "cntrl".
The wide-character class "graph" is disjoint from the wide-character class "space" and therefore also disjoint from its subclass "blank".
The wide-character class "graph" contains all the wide characters from the wide-character class "print" except the space character. It therefore contains the wide-character classes "alnum" and "punct".
Return Value
The iswgraph() function returns nonzero if wc is a wide character belonging to the wide-character class "graph". Otherwise, it returns zero.
Attributes
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
|---|---|---|
| iswgraph() | Thread safety | MT-Safe locale |
Conforming to
POSIX.1-2001, POSIX.1-2008, C99.
Notes
The behavior of iswgraph() depends on the LC_CTYPE category of the current locale.
See Also
Colophon
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