isprint
—
printing character test (space character inclusive)
Standard C Library (libc, -lc)
#include <ctype.h>
int
isprint
(int
c);
The isprint
() function tests for any printing character
including space (' ').
The isprint
() 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),
isgraph(3),
islower(3),
ispunct(3),
isspace(3),
isupper(3),
isxdigit(3),
stdio(3),
toascii(3),
tolower(3),
toupper(3),
ascii(7)
The isprint
() function conforms to ANSI
X3.159-1989 (“ANSI C89”).
The argument to isprint
() must be
EOF
or representable as an unsigned
char; otherwise, the behavior is undefined. See the
CAVEATS section of
ctype(3) for more details.