1ISSPACE(3) 386BSD Programmer's Manual ISSPACE(3) 2 3NNAAMMEE 4 iissssppaaccee - white-space character test 5 6SSYYNNOOPPSSIISS 7 ##iinncclluuddee <<ccttyyppee..hh>> 8 9 _i_n_t 10 iissssppaaccee(_i_n_t _c) 11 12DDEESSCCRRIIPPTTIIOONN 13 The iissssppaaccee() function tests for the standard white-space characters for 14 which isalnum(3) is false. The standard white-space characters are the 15 following: 16 17 ` ' Space character. 18 \f Form feed. 19 \n New-line. 20 \r Carriage return. 21 \t Horizontal tab. 22 \v And vertical tab. 23 24 In the ``_C'' locale, iissssppaaccee() returns true only for the standard white- 25 space characters. 26 27RREETTUURRNN VVAALLUUEESS 28 The iissssppaaccee() macro returns zero if the character tests false and returns 29 non-zero if the character tests true. 30 31SSEEEE AALLSSOO 32 isascii(3), isalnum(3), isalpha(3), iscntrl(3), isdigit(3), 33 isgraph(3), islower(3), isprint(3), ispunct(3), isupper(3), 34 isxdigit(3), toascii(3), tolower(3), toupper(3), stdio(3) ascii(7) 35 36SSTTAANNDDAARRDDSS 37 The iissssppaaccee() function conforms to ANSI C3.159-1989 (``ANSI C''). 38 39BSD Experimental July 31, 1991 1 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67