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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - "hex sequence out of range" error prevents valid code from building"
href="http://llvm.org/bugs/show_bug.cgi?id=20064">20064</a>
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<th>Summary</th>
<td>"hex sequence out of range" error prevents valid code from building
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>-New Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>bero@lindev.ch
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>This piece of code fails to build with clang:
memcmp(magic,"\xFD7z",3);
clang (correctly) complains about "\xFD7" being a hex escape sequence out of
range -- but there is no "\xFD7" sequence involved here - what the code means
(and what gcc takes it to mean) is check for \xFD followed by the string 7z.
Probably the error should be downgraded to a warning because it's entirely
possible that someone actually meant "\xFD7" to be a 0xfd7 hex sequence - but
it should do what the code means to do anyway.</pre>
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