| ISWSPACE(3) | Linux Programmer's Manual | ISWSPACE(3) |
iswspace - test for whitespace wide character
#include <wctype.h> int iswspace (wint_t wc);
The iswspace function is the wide-character equivalent of the isspace function. It tests whether wc is a wide character belonging to the wide character class "space".
The wide character class "space" is disjoint from the wide character class "graph" and therefore also disjoint from its subclasses "alnum", "alpha", "upper", "lower", "digit", "xdigit", "punct".
The wide character class "space" contains the wide character class "blank".
The wide character class "space" always contains at least the space character and the control characters '\f', '\n', '\r', '\t', '\v'.
The iswspace function returns non-zero if wc is a wide character belonging to the wide character class "space". Otherwise it returns zero.
ISO/ANSI C, UNIX98
The behaviour of iswspace depends on the LC_CTYPE category of the current locale.
| July 25, 1999 | GNU |