isxdigit(3) - NetBSD Manual Pages

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ISXDIGIT(3)             NetBSD Library Functions Manual            ISXDIGIT(3)


NAME

     isxdigit -- hexadecimal-digit character test


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

     #include <ctype.h>

     int
     isxdigit(int c);


DESCRIPTION

     The isxdigit() function tests for any hexadecimal-digit character.


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), isalnum(3), isalpha(3), isascii(3), isblank(3), iscntrl(3),
     isdigit(3), isgraph(3), islower(3), isprint(3), ispunct(3), isspace(3),
     isupper(3), stdio(3), toascii(3), tolower(3), toupper(3), ascii(7)


STANDARDS

     The isxdigit() function conforms to ANSI X3.159-1989 (``ANSI C89'').


CAVEATS

     The argument to isxdigit() must be EOF or representable as an unsigned
     char; otherwise, the behavior is undefined.  See the CAVEATS section of
     ctype(3) for more details.

NetBSD 5.1                      April 17, 2008                      NetBSD 5.1