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iscntrl.0
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1992-08-10
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ISCNTRL(3) UNIX Programmer's Manual ISCNTRL(3)
NNAAMMEE
iissccnnttrrll - control character test
SSYYNNOOPPSSIISS
##iinncclluuddee <<ccttyyppee..hh>>
_i_n_t
iissccnnttrrll(_i_n_t _c)
DDEESSCCRRIIPPTTIIOONN
The iissccnnttrrll() function tests for any control character.
RREETTUURRNN VVAALLUUEESS
The iissccnnttrrll() macro returns zero if the character tests false and returns
nonzero if the character tests true.
SSEEEE AALLSSOO
isascii(3), isalnum(3), isalpha(3), isdigit(3), isgraph(3),
islower(3), isprint(3), ispunct(3), isspace(3), isupper(3),
isxdigit(3), toascii(3), tolower(3), toupper(3), stdio(3) ascii(7)
SSTTAANNDDAARRDDSS
The iissccnnttrrll() function conforms to ANSI C3.1591989 (``ANSI C'').
BSD Experimental June 29, 1991 1