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

NAME
     isblank - space or tab character test

SYNOPSIS
     #include <&lt;ctype.h>&gt;

     int
     isblank(int c);

DESCRIPTION
     The isblank() function tests for a space or tab character.

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

SEE ALSO
     ctype(3),  ascii(7)

4.4BSD                           June 4, 1993                                1