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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [MSVC compat] Null checks for non-noexcept allocation functions"
href="https://bugs.llvm.org/show_bug.cgi?id=48463">48463</a>
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<th>Summary</th>
<td>[MSVC compat] Null checks for non-noexcept allocation functions
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>enhancement
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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>dmajor@mozilla.com
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<pre><a href="https://godbolt.org/z/h955c9">https://godbolt.org/z/h955c9</a>
In the example above, clang tests the result of an allocation for null iff the
allocation function is marked noexcept. This makes sense, and agrees with my
reading of <a href="https://eel.is/c++draft/expr.new#20">https://eel.is/c++draft/expr.new#20</a>, but MSVC includes the null
check regardless of the exception specification. Should clang do the same when
targeting Windows?
(This was reduced from a real-world crash that occurred because the code put
the noexcept behind an #ifndef _MSC_VER, probably due to lack of support at the
time.)</pre>
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