iswgraph - test for graphic wide character
Standard C library (libc
, -lc
)
#include <wctype.h>
int iswgraph(wint_t wc);
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".
The iswgraph() function returns nonzero if
wc
is a wide character belonging to the wide-character class
"graph". Otherwise, it returns zero.
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
iswgraph() |
Thread safety | MT-Safe locale |
C11, POSIX.1-2008.
POSIX.1-2001, C99.
The behavior of iswgraph() depends on the LC_CTYPE category of the current locale.