#include <wchar.h>
#include <wctype.h>
#include <ctype.h>
int iswspace(wint_t wc)
{
static const wchar_t spaces[] = {
' ', '\t', '\n', '\r', 11, 12, 0x0085,
0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005,
0x2006, 0x2008, 0x2009, 0x200a, 0x200b,
0x2028, 0x2029, 0x2050, 0x3000, 0
};
if (wcschr(spaces, wc)) return 1;
return 0;
}