iswgraph - Test for visible wide character

Definition	#include <wctype.h> int iswgraph(wint_t wc); iswgraph tests whether the wide character specified by wc is a character with a visible representation, i.e. an alphanumeric or special character. Spaces are not considered to be visible. In all cases, wc is an argument of type wint_t, the value of which must be a wide character code corresponding to a valid character in the current locale or must equal the value of the macro WEOF. If the argument wc has any other value, the behavior is undefined.
Return val.	!= 0 0	wc is a character with a visible representation. wc is not a character with a visible representation.
Notes	This version of the C runtime system only supports one-byte characters as wide character codes. iswgraph is implemented both as a function and as a macro (see section “Functions and macros”). The behavior of iswgraph is determined by the class graph of the current locale. The current locale is the C locale, unless it was explicitly changed using setlocale.
See also	isgraph, iswalnum, iswalpha, iswcntrl, iswdigit, iswlower, iswprint, iswpunct, iswspace, iswupper, iswxdigit, setlocale