isxdigit man page on 4.4BSD

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ISXDIGIT(3)		 BSD Library Functions Manual		   ISXDIGIT(3)

NAME
     isxdigit — hexadecimal-digit character test

SYNOPSIS
     #include <ctype.h>

     int
     isxdigit(int c);;

DESCRIPTION
     The isxdigit() function tests for any hexadecimal-digit character.	 In
     the ASCII character set, this includes the following characters:

     060 ``0''	   061 ``1''	 062 ``2''     063 ``3''     064 ``4''
     065 ``5''	   066 ``6''	 067 ``7''     070 ``8''     071 ``9''
     101 ``A''	   102 ``B''	 103 ``C''     104 ``D''     105 ``E''
     106 ``F''	   141 ``a''	 142 ``b''     143 ``c''     144 ``d''
     145 ``e''	   146 ``f''

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

SEE ALSO
     ctype(3), ascii(7)

STANDARDS
     The isxdigit() function conforms to ANSI X3.159-1989 (“ANSI C89”).

BSD				 June 4, 1993				   BSD
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