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<TITLE>C API Reference -- Ns_SetIUnique</TITLE>
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<a name="290048">
</a><h3>Ns_SetIUnique</h3>
<a name="290049">
</a><h4>Overview</h4>
Check if a key in an Ns_Set is unique (case insensitive)
<a name="290050">
</a><a name="290051">
</a><h4>Syntax</h4>
<pre> <a name="290052"></a>int Ns_SetIUnique(
<a name="290053"></a>Ns_Set *set,
<a name="290054"></a>char *key
<a name="290055"></a>);
</pre><p><a name="290056">
</a><h4>Description</h4>
<p><a name="290057">
</a>Ns_SetIUnique returns 1 if the specified key is unique in the specified set and 0 if it is not. The test for uniqueness is performed case-insensitively. The case-sensitive counterpart to this function is Ns_SetUnique.</p>
<p><a name="290058">
</a>For example, a client could send multiple "Accept:" headers which would end up in the header set for the connection. Ns_SetIUnique would then return 0 for the header set and the "Accept" key, because there are multiple fields with the key "Accept".</p>
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