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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - False positive: std::valarray standard conforming operator[] triggers null reference warning"
href="http://llvm.org/bugs/show_bug.cgi?id=21342">21342</a>
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<th>Summary</th>
<td>False positive: std::valarray standard conforming operator[] triggers null reference warning
</td>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Static Analyzer
</td>
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<th>Assignee</th>
<td>kremenek@apple.com
</td>
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<th>Reporter</th>
<td>stevemac321@live.com
</td>
</tr>
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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>libcxx/include/valarray:841:53: warning: Returning null reference
value_type& operator[](size_t __i) {return __begin_[__i];}
^~~~~~~~~~~~~~~~~~~~
Standard says:
N3797 clause: 26.6.2.4 valarray element access
paragraph 6.) If the subscript operator is invoked with a size_t argument whose
value is not less than the length of the array, the behavior is undefined.</pre>
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