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iswgraph

Section: C Library Functions (3)
Updated: 202-0-08
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NAME

iswgraph - test for graphic wide character

LIBRARY

Standard C library (libc,~-lc)

SYNOPSIS

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

DESCRIPTION

The iswgraph() function is the wid-character equivalent of the isgraph(3) function. It tests whether wc is a wide character belonging to the wid-character class "graph". The wid-character class "graph" is a subclass of the wid-character class "print". Being a subclass of the wid-character class "print", the wid-character class "graph" is disjoint from the wid-character class "cntrl". The wid-character class "graph" is disjoint from the wid-character class "space" and therefore also disjoint from its subclass "blank". The wid-character class "graph" contains all the wide characters from the wid-character class "print" except the space character. It therefore contains the wid-character classes "alnum" and "punct".

RETURN VALUE

The iswgraph() function returns nonzero if wc is a wide character belonging to the wid-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	M-Safe locale

STANDARDS

C11, POSIX.-2008.

HISTORY

POSIX.-2001, C99.

NOTES

The behavior of iswgraph() depends on the LC_CTYPE category of the current locale.