ISSPECIAL(3)           FreeBSD Library Functions Manual           ISSPECIAL(3)

NAME

     isspecial, isspecial_l - special character test

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <ctype.h>

     int
     isspecial(int c);

     int
     isspecial_l(int c, locale_t loc);

DESCRIPTION

     The isspecial() and isspecial_l() functions test for a special character.

     The isspecial_l() function takes an explicit locale argument, whereas the
     isspecial() function uses the current global or per-thread locale.

RETURN VALUES

     The isspecial() and isspecial_l() functions return zero if the character
     tests false and return non-zero if the character tests true.

COMPATIBILITY

     The 4.4BSD extension of accepting arguments outside of the range of the
     unsigned char type in locales with large character sets is considered
     obsolete and may not be supported in future releases.  The iswspecial()
     or iswspecial_l() function should be used instead.

SEE ALSO

     ctype(3), ctype_l(3), iswspecial(3), iswspecial_l(3), xlocale(3)

HISTORY

     The isspecial() function appeared in 4.4BSD.

FreeBSD 15.1-STABLE-HBSD       December 19, 2022                  ISSPECIAL(3)