NAME    [Toc]    [Back]

     isascii - ASCII character test

SYNOPSIS    [Toc]    [Back]

     #include <ctype.h>

     int
     isascii(int c);

DESCRIPTION    [Toc]    [Back]

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

RETURN VALUES    [Toc]    [Back]

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

SEE ALSO    [Toc]    [Back]

     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    [Toc]    [Back]

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

CAVEATS    [Toc]    [Back]

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

OpenBSD      3.6                            May      2,      1991