NAME

isgraph — printing character test (space character exclusive)

SYNOPSIS

#include <ctype.h>

int
isgraph(int c);

DESCRIPTION

The isgraph() function tests for any printing character except space (‘ ’).

RETURN VALUES

The isgraph() function returns zero if the character tests false or non-zero if the character tests true.

SEE ALSO

isalnum(3), isalpha(3), isascii(3), isblank(3), iscntrl(3), isdigit(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 isgraph() function conforms to ANSI X3.159-1989 (“ANSI C89”).

CAVEATS

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