isascii
__only_inline int isascii(int _c)
#undef isascii
isascii(int c)
isascii(int c)
#define isascii(c) ((c) <= 0177)
# undef isascii
# define isascii(c) (UChar(c) <= 127)
# define isascii(c) 1 /* not really ascii anyway */