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- ISSPACE(3) UNIX Programmer's Manual ISSPACE(3)
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- NNAAMMEE
- iissssppaaccee - whitespace character test
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- SSYYNNOOPPSSIISS
- ##iinncclluuddee <<ccttyyppee..hh>>
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- _i_n_t
- iissssppaaccee(_i_n_t _c)
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- DDEESSCCRRIIPPTTIIOONN
- The iissssppaaccee() function tests for the standard whitespace characters for
- which isalnum(3) is false. The standard whitespace characters are the
- following:
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- ` ' Space character.
- \f Form feed.
- \n Newline.
- \r Carriage return.
- \t Horizontal tab.
- \v And vertical tab.
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- In the _`_`_C_'_' locale, iissssppaaccee() returns true only for the standard white
- space characters.
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- RREETTUURRNN VVAALLUUEESS
- The iissssppaaccee() macro returns zero if the character tests false and returns
- nonzero if the character tests true.
-
- SSEEEE AALLSSOO
- 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)
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- SSTTAANNDDAARRDDSS
- The iissssppaaccee() function conforms to ANSI C3.1591989 (``ANSI C'').
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- BSD Experimental July 31, 1991 1
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