isxdigit(3) - NetBSD Manual Pages

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() macro returns zero if the character tests false and returns 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), 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 result is undefined. NetBSD 3.1.1 June 29, 1991 NetBSD 3.1.1

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