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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [clang-cl] diagnoses __expect(<dependent-expression>) at template parse time"
href="https://bugs.llvm.org/show_bug.cgi?id=43779">43779</a>
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<th>Summary</th>
<td>[clang-cl] diagnoses __expect(<dependent-expression>) at template parse time
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>9.0
</td>
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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
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>Casey@Carter.net
</td>
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<pre>Compiling this well-formed program:
template <class T>
void f() {
__try {}
__except(T{}) {}
}
int main() {
f<int>();
}
with "clang-cl /EHsc" diagnoses:
repro.cpp(4,14): error: filter expression type should be an integral value
not 'T'
__except(T{}) {}
^
1 error generated.
Presumably the semantic check should be delayed until instantiation when the
expression passed to "__except" is type-dependent.
(Apologies for selecting "C++" for the Component field on this bug - there's no
option for "Microsoft Extensions.")</pre>
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