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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - regex does not throw an exception for an ECMAScript pattern that starts with '?'" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D24262&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=PoPs6G8ARhKy79FCfdbK3cV6VzXow2__xrIG5Tw-EUQ&s=T7yBfvHCBejEDLbfDRvgi7Cx75i6lAs4TecIrLe8FJo&e=">24262</a>
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<th>Summary</th>
<td>regex does not throw an exception for an ECMAScript pattern that starts with '?'
</td>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>unspecified
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<th>Hardware</th>
<td>Macintosh
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<th>OS</th>
<td>MacOS X
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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>All Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>tsmigiel@yahoo.com
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu, mclow.lists@gmail.com
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=14645" name="attach_14645" title="ecma.cpp">attachment 14645</a> <a href="attachment.cgi?id=14645&action=edit" title="ecma.cpp">[details]</a></span>
ecma.cpp
When specifying an ECMAScript regex that starts with '?', as in the test
case attached, I was expecting it to throw an error.</pre>
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