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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - /opt/local/libexec/llvm-4.0/include/c++/v1/algorithm:3010:35: runtime error: signed integer overflow: 9223372036854775807 - -9223372036854775808 cannot be represented in type 'long long'"
href="https://bugs.llvm.org/show_bug.cgi?id=32617">32617</a>
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<th>Summary</th>
<td>/opt/local/libexec/llvm-4.0/include/c++/v1/algorithm:3010:35: runtime error: signed integer overflow: 9223372036854775807 - -9223372036854775808 cannot be represented in type 'long long'
</td>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>4.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>MacOS X
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>System Library
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
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<th>Reporter</th>
<td>vincent.lebourlot@starqube.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
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<pre>UBSan detected a bug in algorithm:
/opt/local/libexec/llvm-4.0/bin/../include/c++/v1/algorithm:3010:35: runtime
error: signed integer overflow: 9223372036854775807 - -9223372036854775808
cannot be represented in type 'long long'
I personally patched the line on my machine with:
const _UIntType _Rp = _UIntType(__p.b()) - _UIntType(__p.a()) +
_UIntType(1);
which got it working.
this bug can be reproduced by doing:
std::mt19937_64 engine;
std::uniform_int_distribution<long long>dist(std::numeric_limits<long
long>::min(), std::numeric_limits<long long>::max());
dist(engine);
cheers
V.</pre>
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