isgraph
—
printing character test (space character exclusive)
Standard C Library (libc, -lc)
#include <ctype.h>
int
isgraph
(int
c);
The isgraph
() function tests for any printing character
except space (' ').
The isgraph
() function returns zero if the character
tests false and returns non-zero if the character tests true.
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)
The isgraph
() function conforms to ANSI
X3.159-1989 (“ANSI C89”).
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.