4.4BSD/usr/share/man/cat3/isspace.0

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ISSPACE(3)                  BSD Programmer's Manual                 ISSPACE(3)

NNAAMMEE
     iissssppaaccee - white-space character test

SSYYNNOOPPSSIISS
     ##iinncclluuddee <<ccttyyppee..hh>>

     _i_n_t
     iissssppaaccee(_i_n_t _c);

DDEESSCCRRIIPPTTIIOONN
     The iissssppaaccee() function tests for the standard white-space characters.  In
     the ASCII character set, this includes the following characters:


     011 ht        012 nl        013 vt        014 np        015 cr
     040 sp

RREETTUURRNN VVAALLUUEESS
     The iissssppaaccee() function returns zero if the character tests false and re-
     turns non-zero if the character tests true.

SSEEEE AALLSSOO
     ctype(3),  ascii(7)

SSTTAANNDDAARRDDSS
     The iissssppaaccee() function conforms to ANSI C X3.159-1989 (``ANSI C '').

4.4BSD                           June 4, 1993                                1