ICONVCTL(3)                Linux Programmer's Manual               ICONVCTL(3)

NAME
       iconvctl - control iconv behavior

SYNOPSIS
       #include <iconv.h>

       int iconvctl (iconv_t cd , int request, void * argument);

DESCRIPTION
       The argument cd must be a conversion descriptor created using the
       function iconv_open.

       iconvctl queries or adjusts the behavior of the iconv function, when
       invoked with the specified conversion descriptor, depending on the
       request value.

REQUEST VALUES
       The following are permissible values for the request parameter.

       ICONV_TRIVIALP
              argument should be an int * which will receive 1 if the
              conversion is trivial, or 0 otherwise.

       ICONV_GET_TRANSLITERATE
              argument should be an int * which will receive 1 if
              transliteration is enabled in the conversion, or 0 otherwise.

       ICONV_SET_TRANSLITERATE
              argument should be a const int *, pointing to an int value.  A
              non-zero value is used to enable transliteration in the
              conversion. A zero value disables it.

       ICONV_GET_DISCARD_ILSEQ
              argument should be an int * which will receive 1 if "illegal
              sequence discard and continue" is enabled in the conversion, or
              0 otherwise.

       ICONV_SET_DISCARD_ILSEQ
              argument should be a const int *, pointing to an int value.  A
              non-zero value is used to enable "illegal sequence discard and
              continue" in the conversion. A zero value disables it.

RETURN VALUE
       The iconvctl function returns 0 if it succeeds. In case of error, it
       sets errno and returns -1.

ERRORS
       The following errors can occur, among others:

       EINVAL The request is invalid.

CONFORMING TO
       This function is implemented only in GNU libiconv and not in other
       iconv implementations. It is not backed by a standard. You can test for
       its presence through (_LIBICONV_VERSION >= 0x0108).

SEE ALSO
       iconv_open(3) iconv(3)

GNU                             March 31, 2007                     ICONVCTL(3)