NAME

isgraph — printing character test (space character exclusive)

LIBRARY

Standard C Library (libc, -lc)

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 and returns non-zero if the character tests true.

SEE ALSO

ctype(3), 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 behavior is undefined. See the CAVEATS section of ctype(3) for more details.