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<h1 align=center>TEXTDOMAIN</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#RETURN VALUE">RETURN VALUE</a><br>
<a href="#ERRORS">ERRORS</a><br>
<a href="#BUGS">BUGS</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
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<a name="NAME"></a>
<h2>NAME</h2>
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<p>textdomain − set domain for future gettext()
calls</p>
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<h2>SYNOPSIS</h2>
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<pre><b>#include <libintl.h>
char * textdomain (const char *</b> <i>domainname</i><b>);
</b></pre>
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<h2>DESCRIPTION</h2>
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<p>The <b>textdomain</b> function sets or retrieves the
current message domain.</p>
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<p>A message domain is a set of translatable <i>msgid</i>
messages. Usually, every software package has its own
message domain. The domain name is used to determine the
message catalog where a translation is looked up; it must be
a non-empty string.</p>
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<p>The current message domain is used by the <b>gettext</b>,
<b>ngettext</b> functions, and by the <b>dgettext</b>,
<b>dcgettext</b>, <b>dngettext</b> and <b>dcngettext</b>
functions when called with a NULL domainname argument.</p>
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<p>If <i>domainname</i> is not NULL, the current message
domain is set to <i>domainname</i>. The string the function
stores internally is a copy of the <i>domainname</i>
argument.</p>
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<p>If <i>domainname</i> is NULL, the function returns the
current message domain.</p>
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<a name="RETURN VALUE"></a>
<h2>RETURN VALUE</h2>
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<p>If successful, the <b>textdomain</b> function returns the
current message domain, after possibly changing it. The
resulting string is valid until the next <b>textdomain</b>
call and must not be modified or freed. If a memory
allocation failure occurs, it sets <b>errno</b> to
<b>ENOMEM</b> and returns NULL.</p>
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<h2>ERRORS</h2>
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<p>The following error can occur, among others:</p>
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<p><b>ENOMEM</b></p>
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<p>Not enough memory available.</p>
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<h2>BUGS</h2>
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<p>The return type ought to be <b>const char *</b>, but is
<b>char *</b> to avoid warnings in C code predating ANSI
C.</p>
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<h2>SEE ALSO</h2>
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<p><b>gettext</b>(3), <b>ngettext</b>(3),
<b>bindtextdomain</b>(3),
<b>bind_textdomain_codeset</b>(3)</p>
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