Reference

isspecial(3)

special character test

NAME

isspecial – special character test

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <ctype.h>

int

isspecial(int c);

DESCRIPTION

The isspecial() function tests for a special character. Special characters are locale dependent, and not necessarily consistent between different locales. Examples might include fractions and numbers inside circles.

RETURN VALUES

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

SEE ALSO

ctype(3), iswspecial(3), isalnum_l

HISTORY

The isspecial() function appeared in 4.4BSD.

History