iissggrraapphh() -- ctype Function (libc)

Check if a character is printable
#iinncclluuddee <ccttyyppee.hh>
iinntt iissggrraapphh(iinntt _c);

iissggrraapphh() tests whether _c is  a printable letter within the ASCII character
set,  but  excluding the  space  character.  The  ANSI  Standard defines  a
printable character as any character that occupies one printing position on
an output device.   _c must be a value that  is representable as an uunnssiiggnneedd
cchhaarr or EEOOFF.

iissggrraapphh() returns nonzero if _c is a printable character (except for space),
and zero if it is not.

_S_e_e _A_l_s_o
AASSCCIIII, lliibbcc
ANSI Standard, 7.3.1.5
POSIX Standard, section 8.1
