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

NNAAMMEE
     iissssppaaccee - white-space character test

SSYYNNOOPPSSIISS
     ##iinncclluuddee <<ccttyyppee..hh>>

     _i_n_t
     iissssppaaccee(_i_n_t _c)

DDEESSCCRRIIPPTTIIOONN
     The iissssppaaccee() function tests for the standard white-space characters for
     which isalnum(3) is false.  The standard white-space characters are the
     following:

           ` '    Space character.
           \f     Form feed.
           \n     New-line.
           \r     Carriage return.
           \t     Horizontal tab.
           \v     And vertical tab.

     In the _`_`_C_'_' locale, iissssppaaccee() returns true only for the standard white-
     space characters.

RREETTUURRNN VVAALLUUEESS
     The iissssppaaccee() macro returns zero if the character tests false and returns
     non-zero if the character tests true.

SSEEEE AALLSSOO
     isascii(3),  isalnum(3),  isalpha(3),  iscntrl(3),  isdigit(3),
     isgraph(3),  islower(3),  isprint(3),  ispunct(3),  isupper(3),
     isxdigit(3),  toascii(3),  tolower(3),  toupper(3),  stdio(3) ascii(7)

SSTTAANNDDAARRDDSS
     The iissssppaaccee() function conforms to ANSI C3.159-1989 (``ANSI C'').

BSD Experimental                 July 31, 1991                               1


























