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<title>Debugging with GDB: Open Flags</title>
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<a name="Open-Flags"></a>
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Next: <a href="mode_005ft-Values.html#mode_005ft-Values" accesskey="n" rel="next">mode_t Values</a>, Up: <a href="Constants.html#Constants" accesskey="u" rel="up">Constants</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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<a name="Open-Flags-1"></a>
<h4 class="unnumberedsubsubsec">Open Flags</h4>
<a name="index-open-flags_002c-in-file_002di_002fo-protocol"></a>
<p>All values are given in hexadecimal representation.
</p>
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<pre class="smallexample"> O_RDONLY 0x0
O_WRONLY 0x1
O_RDWR 0x2
O_APPEND 0x8
O_CREAT 0x200
O_TRUNC 0x400
O_EXCL 0x800
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