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<title>Exiv2: metadatum.hpp File Reference</title>
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<h1>metadatum.hpp File Reference</h1>Provides abstract base classes Metadatum and Key. <a href="#_details">More...</a>
<p>
<code>#include "<a class="el" href="types_8hpp.html">types.hpp</a>"</code><br>
<code>#include "<a class="el" href="value_8hpp.html">value.hpp</a>"</code><br>
<code>#include <string></code><br>
<code>#include <memory></code><br>
<p>
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This graph shows which files directly or indirectly include this file:<p><center><img src="metadatum_8hpp__dep__incl.png" border="0" usemap="#metadatum.hppdep_map" alt=""></center>
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<table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Namespaces</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">namespace </td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceExiv2.html">Exiv2</a></td></tr>
<tr><td colspan="2"><br><h2>Classes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Key.html">Exiv2::Key</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Abstract base class defining the Key of a metadatum. Keys are used to identify and group metadata. <a href="classExiv2_1_1Key.html#_details">More...</a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1Metadatum.html">Exiv2::Metadatum</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Abstract base class defining the interface to access information related to one metadata tag. <a href="classExiv2_1_1Metadatum.html#_details">More...</a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classExiv2_1_1FindMetadatumByKey.html">Exiv2::FindMetadatumByKey</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Unary predicate that matches a <a class="el" href="classExiv2_1_1Exifdatum.html">Exifdatum</a> with a given key. <a href="classExiv2_1_1FindMetadatumByKey.html#_details">More...</a><br></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a225826fb028de2941da4230b51dfb95"></a><!-- doxytag: member="metadatum.hpp::operator<<" ref="a225826fb028de2941da4230b51dfb95" args="(std::ostream &os, const Key &key)" -->
std::ostream & </td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceExiv2.html#a225826fb028de2941da4230b51dfb95">Exiv2::operator<<</a> (std::ostream &os, const Key &key)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Output operator for <a class="el" href="classExiv2_1_1Key.html">Key</a> types. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="6e2d7cde2d05f80fb5a4687c0c0490dd"></a><!-- doxytag: member="metadatum.hpp::operator<<" ref="6e2d7cde2d05f80fb5a4687c0c0490dd" args="(std::ostream &os, const Metadatum &md)" -->
std::ostream & </td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceExiv2.html#6e2d7cde2d05f80fb5a4687c0c0490dd">Exiv2::operator<<</a> (std::ostream &os, const Metadatum &md)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Output operator for <a class="el" href="classExiv2_1_1Metadatum.html">Metadatum</a> types, printing the interpreted tag value. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="2344927693224c0e6ba7f2860399a90a"></a><!-- doxytag: member="metadatum.hpp::cmpMetadataByTag" ref="2344927693224c0e6ba7f2860399a90a" args="(const Metadatum &lhs, const Metadatum &rhs)" -->
bool </td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceExiv2.html#2344927693224c0e6ba7f2860399a90a">Exiv2::cmpMetadataByTag</a> (const Metadatum &lhs, const Metadatum &rhs)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Compare two metadata by tag. Return true if the tag of metadatum lhs is less than that of rhs. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="d4cbb81074f260772bea7ebe9c5ebabe"></a><!-- doxytag: member="metadatum.hpp::cmpMetadataByKey" ref="d4cbb81074f260772bea7ebe9c5ebabe" args="(const Metadatum &lhs, const Metadatum &rhs)" -->
bool </td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceExiv2.html#d4cbb81074f260772bea7ebe9c5ebabe">Exiv2::cmpMetadataByKey</a> (const Metadatum &lhs, const Metadatum &rhs)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Compare two metadata by key. Return true if the key of metadatum lhs is less than that of rhs. <br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Provides abstract base classes Metadatum and Key.
<p>
<dl compact><dt><b>Version:</b></dt><dd><dl compact><dt><b>Rev</b></dt><dd>808 </dd></dl>
</dd></dl>
<dl compact><dt><b>Author:</b></dt><dd>Andreas Huggel (ahu) <a href="mailto:ahuggel@gmx.net">ahuggel@gmx.net</a> <p>
Brad Schick (brad) <a href="mailto:brad@robotbattle.com">brad@robotbattle.com</a> </dd></dl>
<dl compact><dt><b>Date:</b></dt><dd>09-Jan-04, ahu: created<br>
31-Jul-04, brad: isolated as a component<br>
23-Aug-04, ahu: added Key </dd></dl>
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