MirBSD manpage: isascii(3)

ISASCII(3)                 BSD Programmer's Manual                  ISASCII(3)

NAME

     isascii - ASCII character test

SYNOPSIS

     #include <ctype.h>

     int
     isascii(int c);

DESCRIPTION

     The isascii() function tests for an ASCII character, which is any charac-
     ter with a value less than or equal to 0177.

RETURN VALUES

     The isascii() macro returns zero if the character tests false or non-zero
     if the character tests true.

SEE ALSO

     isalnum(3), isalpha(3), isblank(3), iscntrl(3), isdigit(3), isgraph(3),
     islower(3), isprint(3), ispunct(3), isspace(3), isupper(3), isxdigit(3),
     stdio(3), toascii(3), tolower(3), toupper(3), ascii(7)

STANDARDS

     The isascii() function conforms to X/Open Portability Guide Issue 4
     ("XPG4").

CAVEATS

     The argument to isascii() must be EOF or representable as an unsigned
     char; otherwise, the result is undefined.

MirBSD #10-current               May 2, 1991                                 1