|
ISGRAPH(3) |
Library Functions Manual |
ISGRAPH(3) |
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.