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isspace(3) [osx man page]

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: `` '' `` '' ``v'' ``f'' `` '' `` '' In the "C" locale, isspace() successful test is limited to these characters only. The value of the argument must be 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
July 17, 2005 BSD

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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 standard white-space characters for which isalnum(3) is false. The standard white-space characters are the following: ' ' Space character. f Form feed. New-line. Carriage return. Horizontal tab. v And vertical tab. In the ``C'' locale, isspace() returns true only for the standard white-space characters. RETURN VALUES
The isspace() function returns zero if the character tests false and returns non-zero if the character tests true. SEE ALSO
ctype(3), isalnum(3), isalpha(3), isascii(3), isblank(3), iscntrl(3), isdigit(3), isgraph(3), islower(3), isprint(3), ispunct(3), isupper(3), isxdigit(3), stdio(3), toascii(3), tolower(3), toupper(3), ascii(7) STANDARDS
The isspace() function conforms to ANSI X3.159-1989 (``ANSI C89''). CAVEATS
The argument to isspace() must be EOF or representable as an unsigned char; otherwise, the behavior is undefined. See the CAVEATS section of ctype(3) for more details. BSD
April 17, 2008 BSD
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