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Code Editor : iconvctl.3.html

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<title>ICONVCTL</title>

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<h1 align="center">ICONVCTL</h1>

<a href="#NAME">NAME</a> 
<a href="#SYNOPSIS">SYNOPSIS</a> 
<a href="#DESCRIPTION">DESCRIPTION</a> 
<a href="#REQUEST VALUES">REQUEST VALUES</a> 
<a href="#RETURN VALUE">RETURN VALUE</a> 
<a href="#ERRORS">ERRORS</a> 
<a href="#CONFORMING TO">CONFORMING TO</a> 
<a href="#SEE ALSO">SEE ALSO</a>

<hr>

iconvctl
&minus; control iconv behavior

<h2>SYNOPSIS
<a name="SYNOPSIS"></a>
</h2>

#include
&lt;iconv.h&gt;

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

<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>

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.

<h2>REQUEST VALUES
<a name="REQUEST VALUES"></a>
</h2>

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 &quot;illegal sequence
discard and continue&quot; 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 &quot;illegal sequence
discard and continue&quot; in the conversion. A zero value
disables it.

<h2>RETURN VALUE
<a name="RETURN VALUE"></a>
</h2>

The
iconvctl function returns 0 if it succeeds. In case
of error, it sets errno and returns &minus;1.

<h2>ERRORS
<a name="ERRORS"></a>
</h2>

The following
errors can occur, among others:

EINVAL</td>
<td width="2%"></td>
<td width="35%">

The request is invalid.</td>
<td width="43%">
</td></tr>
</table>

<h2>CONFORMING TO
<a name="CONFORMING TO"></a>
</h2>

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 &gt;= 0x0108).

iconv_open(3)
iconv(3)
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Code Editor : iconvctl.3.html