MirBSD manpage: isspace(3)

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

NAME

     isspace - whitespace character test

SYNOPSIS

     #include <ctype.h>

     int
     isspace(int c);

DESCRIPTION

     The isspace() function tests for the standard whitespace characters for
     which isalnum(3) is false. The standard whitespace 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, isspace() returns true only for the standard whitespace
     characters.

RETURN VALUES

     The isspace() macro returns zero if the character tests false or non-zero
     if the character tests true.

SEE ALSO

     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 result is undefined.

MirBSD #10-current              July 31, 1991                                1