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<HTML>
<HEAD>
<TITLE>GzipIfstream Class Reference</TITLE>
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<li class="navelem"><a class="el" href="namespaceOpenMS.html">OpenMS</a></li><li class="navelem"><a class="el" href="classOpenMS_1_1GzipIfstream.html">GzipIfstream</a></li>  </ul>
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<div class="header">
  <div class="summary">
<a href="#pub-methods">Public Member Functions</a> &#124;
<a href="#pro-methods">Protected Member Functions</a> &#124;
<a href="#pro-attribs">Protected Attributes</a> &#124;
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<p>Decompresses files which are compressed in the gzip format (*.gzip)  
 <a href="classOpenMS_1_1GzipIfstream.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="GzipIfstream_8h_source.html">OpenMS/FORMAT/GzipIfstream.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a8f8182040a9d544eb5a149d93e71f0a9"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a8f8182040a9d544eb5a149d93e71f0a9">GzipIfstream</a> ()</td></tr>
<tr class="memdesc:a8f8182040a9d544eb5a149d93e71f0a9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Default Constructor.  <a href="#a8f8182040a9d544eb5a149d93e71f0a9">More...</a><br/></td></tr>
<tr class="separator:a8f8182040a9d544eb5a149d93e71f0a9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6b2e61cd51dff6d7bdcf9b086dadcd28"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a6b2e61cd51dff6d7bdcf9b086dadcd28">GzipIfstream</a> (const char *filename)</td></tr>
<tr class="memdesc:a6b2e61cd51dff6d7bdcf9b086dadcd28"><td class="mdescLeft">&#160;</td><td class="mdescRight">Detailed constructor with filename.  <a href="#a6b2e61cd51dff6d7bdcf9b086dadcd28">More...</a><br/></td></tr>
<tr class="separator:a6b2e61cd51dff6d7bdcf9b086dadcd28"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa586cd4f99bfc1a158ef43ad97133020"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#aa586cd4f99bfc1a158ef43ad97133020">~GzipIfstream</a> ()</td></tr>
<tr class="memdesc:aa586cd4f99bfc1a158ef43ad97133020"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor.  <a href="#aa586cd4f99bfc1a158ef43ad97133020">More...</a><br/></td></tr>
<tr class="separator:aa586cd4f99bfc1a158ef43ad97133020"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a793774797473f3e8ed6a073df8f84a52"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a793774797473f3e8ed6a073df8f84a52">read</a> (char *s, size_t n)</td></tr>
<tr class="memdesc:a793774797473f3e8ed6a073df8f84a52"><td class="mdescLeft">&#160;</td><td class="mdescRight">reads n bytes from the gzip compressed file into buffer s  <a href="#a793774797473f3e8ed6a073df8f84a52">More...</a><br/></td></tr>
<tr class="separator:a793774797473f3e8ed6a073df8f84a52"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5e93134387edbe53b3ae66852a37eb1f"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a5e93134387edbe53b3ae66852a37eb1f">streamEnd</a> () const </td></tr>
<tr class="memdesc:a5e93134387edbe53b3ae66852a37eb1f"><td class="mdescLeft">&#160;</td><td class="mdescRight">indicates whether the read function can be used safely  <a href="#a5e93134387edbe53b3ae66852a37eb1f">More...</a><br/></td></tr>
<tr class="separator:a5e93134387edbe53b3ae66852a37eb1f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3c7351cec1380d07f9e4b3ec96b2b1ff"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a3c7351cec1380d07f9e4b3ec96b2b1ff">isOpen</a> () const </td></tr>
<tr class="memdesc:a3c7351cec1380d07f9e4b3ec96b2b1ff"><td class="mdescLeft">&#160;</td><td class="mdescRight">returns whether a file is open.  <a href="#a3c7351cec1380d07f9e4b3ec96b2b1ff">More...</a><br/></td></tr>
<tr class="separator:a3c7351cec1380d07f9e4b3ec96b2b1ff"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a57f80da790b202b27353cd8f8415b382"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a57f80da790b202b27353cd8f8415b382">open</a> (const char *filename)</td></tr>
<tr class="memdesc:a57f80da790b202b27353cd8f8415b382"><td class="mdescLeft">&#160;</td><td class="mdescRight">opens a file for reading (decompression)  <a href="#a57f80da790b202b27353cd8f8415b382">More...</a><br/></td></tr>
<tr class="separator:a57f80da790b202b27353cd8f8415b382"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5ae591df94fc66ccb85cbb6565368bca"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a5ae591df94fc66ccb85cbb6565368bca">close</a> ()</td></tr>
<tr class="memdesc:a5ae591df94fc66ccb85cbb6565368bca"><td class="mdescLeft">&#160;</td><td class="mdescRight">closes current file.  <a href="#a5ae591df94fc66ccb85cbb6565368bca">More...</a><br/></td></tr>
<tr class="separator:a5ae591df94fc66ccb85cbb6565368bca"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr class="memitem:a766008b79dd3c6ac707fc627f235a349"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a766008b79dd3c6ac707fc627f235a349">GzipIfstream</a> (const <a class="el" href="classOpenMS_1_1GzipIfstream.html">GzipIfstream</a> &amp;bzip2)</td></tr>
<tr class="memdesc:a766008b79dd3c6ac707fc627f235a349"><td class="mdescLeft">&#160;</td><td class="mdescRight">not implemented  <a href="#a766008b79dd3c6ac707fc627f235a349">More...</a><br/></td></tr>
<tr class="separator:a766008b79dd3c6ac707fc627f235a349"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a036e43934ac72b932b4f76bf0702c47a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classOpenMS_1_1GzipIfstream.html">GzipIfstream</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a036e43934ac72b932b4f76bf0702c47a">operator=</a> (const <a class="el" href="classOpenMS_1_1GzipIfstream.html">GzipIfstream</a> &amp;bzip2)</td></tr>
<tr class="separator:a036e43934ac72b932b4f76bf0702c47a"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-attribs"></a>
Protected Attributes</h2></td></tr>
<tr class="memitem:a1ef1df9742bd5e857368e642d08abe8b"><td class="memItemLeft" align="right" valign="top">gzFile&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a1ef1df9742bd5e857368e642d08abe8b">gzfile_</a></td></tr>
<tr class="memdesc:a1ef1df9742bd5e857368e642d08abe8b"><td class="mdescLeft">&#160;</td><td class="mdescRight">a gzFile object(void*) . Necessary for decompression  <a href="#a1ef1df9742bd5e857368e642d08abe8b">More...</a><br/></td></tr>
<tr class="separator:a1ef1df9742bd5e857368e642d08abe8b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0a69ff8a0cfdfed54d396db4b1d52500"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a0a69ff8a0cfdfed54d396db4b1d52500">n_buffer_</a></td></tr>
<tr class="memdesc:a0a69ff8a0cfdfed54d396db4b1d52500"><td class="mdescLeft">&#160;</td><td class="mdescRight">counts the last read bufffer  <a href="#a0a69ff8a0cfdfed54d396db4b1d52500">More...</a><br/></td></tr>
<tr class="separator:a0a69ff8a0cfdfed54d396db4b1d52500"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0180727fb53abbbb970c35e80965e3fb"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a0180727fb53abbbb970c35e80965e3fb">gzerror_</a></td></tr>
<tr class="memdesc:a0180727fb53abbbb970c35e80965e3fb"><td class="mdescLeft">&#160;</td><td class="mdescRight">saves the last returned error by the read function  <a href="#a0180727fb53abbbb970c35e80965e3fb">More...</a><br/></td></tr>
<tr class="separator:a0180727fb53abbbb970c35e80965e3fb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5bc5b565c935f4accdf0d7d240301bdc"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classOpenMS_1_1GzipIfstream.html#a5bc5b565c935f4accdf0d7d240301bdc">stream_at_end_</a></td></tr>
<tr class="memdesc:a5bc5b565c935f4accdf0d7d240301bdc"><td class="mdescLeft">&#160;</td><td class="mdescRight">true if end of file is reached  <a href="#a5bc5b565c935f4accdf0d7d240301bdc">More...</a><br/></td></tr>
<tr class="separator:a5bc5b565c935f4accdf0d7d240301bdc"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Decompresses files which are compressed in the gzip format (*.gzip) </p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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          <td>(</td>
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<p>Default Constructor. </p>

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          <td>(</td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>filename</em></td><td>)</td>
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<p>Detailed constructor with filename. </p>

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          <td class="memname">virtual ~<a class="el" href="classOpenMS_1_1GzipIfstream.html">GzipIfstream</a> </td>
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<p>Destructor. </p>

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          <td class="memname"><a class="el" href="classOpenMS_1_1GzipIfstream.html">GzipIfstream</a> </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="classOpenMS_1_1GzipIfstream.html">GzipIfstream</a> &amp;&#160;</td>
          <td class="paramname"><em>bzip2</em></td><td>)</td>
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<p>not implemented </p>

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<h2 class="groupheader">Member Function Documentation</h2>
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          <td class="memname">void close </td>
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<p>closes current file. </p>

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<p>returns whether a file is open. </p>

<p>References <a class="el" href="classOpenMS_1_1GzipIfstream.html#a1ef1df9742bd5e857368e642d08abe8b">GzipIfstream::gzfile_</a>, and <a class="el" href="IsotopeWaveletParallelFor_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>.</p>

<p>Referenced by <a class="el" href="classOpenMS_1_1GzipInputStream.html#ae6716799ee9bfc6da096d80df18158d6">GzipInputStream::getIsOpen()</a>.</p>

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          <td class="memname">void open </td>
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          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>filename</em></td><td>)</td>
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<p>opens a file for reading (decompression) </p>
<dl class="section note"><dt>Note</dt><dd>any previous open files will be closed first! </dd></dl>

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          <td class="memname"><a class="el" href="classOpenMS_1_1GzipIfstream.html">GzipIfstream</a>&amp; operator= </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="classOpenMS_1_1GzipIfstream.html">GzipIfstream</a> &amp;&#160;</td>
          <td class="paramname"><em>bzip2</em></td><td>)</td>
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          <td class="memname">size_t read </td>
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<p>reads n bytes from the gzip compressed file into buffer s </p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramname">s</td><td>will be filled with bytes </td></tr>
    <tr><td class="paramname">n</td><td>is the size of the buffer s </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>the number of actually read bytes. If it is 0 the end of the file was reached and the stream is closed</dd></dl>
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    <tr><td class="paramname"><a class="el" href="classOpenMS_1_1Exception_1_1ConversionError.html" title="Invalid conversion exception. ">Exception::ConversionError</a></td><td>is thrown if decompression fails </td></tr>
    <tr><td class="paramname"><a class="el" href="classOpenMS_1_1Exception_1_1IllegalArgument.html" title="A method or algorithm argument contains illegal values. ">Exception::IllegalArgument</a></td><td>is thrwon if no file for decompression is given. This can happen even happen if a file was already open but read until the end. </td></tr>
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<p>indicates whether the read function can be used safely </p>
<dl class="section return"><dt>Returns</dt><dd>true if end of file was reached. Otherwise false. </dd></dl>

<p>References <a class="el" href="classOpenMS_1_1GzipIfstream.html#a5bc5b565c935f4accdf0d7d240301bdc">GzipIfstream::stream_at_end_</a>.</p>

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<h2 class="groupheader">Member Data Documentation</h2>
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<p>saves the last returned error by the read function </p>

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<p>a gzFile object(void*) . Necessary for decompression </p>

<p>Referenced by <a class="el" href="classOpenMS_1_1GzipIfstream.html#a3c7351cec1380d07f9e4b3ec96b2b1ff">GzipIfstream::isOpen()</a>.</p>

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<p>counts the last read bufffer </p>

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<p>true if end of file is reached </p>

<p>Referenced by <a class="el" href="classOpenMS_1_1GzipIfstream.html#a5e93134387edbe53b3ae66852a37eb1f">GzipIfstream::streamEnd()</a>.</p>

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<TD><font color="#c0c0c0">OpenMS / TOPP release 1.11.1</font></TD>
<TD align="right"><font color="#c0c0c0">Documentation generated on Thu Nov 14 2013 11:19:30 using doxygen 1.8.5</font></TD>
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