HP C/iX Library Reference Manual (30026-90004)

Chapter 5 219
HP C/iX Library Function Descriptions
isgraph
isgraph
Tests whether an argument is a printable nonspace character.
Syntax
#include <ctype.h>
int isgraph (int c );
Parameters
c An argument to be evaluated. The argument must be representable as an
unsigned char or the macro EOF.
Return Values
≠0 The argument passed in c is printable.
0 The argument passed in
c is not printable.
Description
The isgraph function returns a nonzero value if the argument passed in c is a printable
non-space character; otherwise, the returned value is zero.
See Also
isalnum, isalpha, iscntrl, isdigit, islower, isprint, ispunct, isspace, isupper,
isxdigit, ANSI C 4.3.1.5, POSIX.1 8.1