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ISSPACE(3)               BSD Library Functions Manual               ISSPACE(3)

NAME
     isspace -- white-space character test

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <ctype.h>

     int
     isspace(int c);

DESCRIPTION
     The isspace() function tests for the white-space characters.  For any
     locale, this includes the following standard characters:

     ``\t''   ``\n''    ``\v''    ``\f''    ``\r''    `` ''

     In the "C" locale, isspace() successful test is limited to these charac-ters characters
     ters only.  For single C chars locales (see multibyte(3)), the value of
     the argument is representable as an unsigned char or the value of EOF.

RETURN VALUES
     The isspace() function returns zero if the character tests false and
     returns non-zero if the character tests true.

COMPATIBILITY
     The 4.4BSD extension of accepting arguments outside of the range of the
     unsigned char type in locales with large character sets is considered
     obsolete and may not be supported in future releases.  The iswspace()
     function should be used instead.

SEE ALSO
     ctype(3), isalnum_l(3), iswspace(3), multibyte(3), ascii(7)

STANDARDS
     The isspace() function conforms to ISO/IEC 9899:1990 (``ISO C90'').

BSD                             August 21, 2004                            BSD