ISXDIGIT(3) BSD Library Functions Manual ISXDIGIT(3)NAMEisxdigit — 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 ALSOctype(3), ascii(7)STANDARDS
The isxdigit() function conforms to ANSI X3.159-1989 (“ANSI C89”).
BSD June 4, 1993 BSD