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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Class template argument deduction fails in case of function type argument"
href="https://bugs.llvm.org/show_bug.cgi?id=52368">52368</a>
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<th>Summary</th>
<td>Class template argument deduction fails in case of function type argument
</td>
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
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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
</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>fchelnokov@gmail.com
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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>In the following program Clang is unable to perform class template argument
deduction:
```
template<typename T>
struct A{
A(T f()){ f(); }
};
int foo() { return 1; }
int main() {
[[maybe_unused]] A y = foo; // Clang error
}
```
GCC accepts it successfully, demo: <a href="https://gcc.godbolt.org/z/PKe6T5aW5">https://gcc.godbolt.org/z/PKe6T5aW5</a>
Related discussion: <a href="https://stackoverflow.com/q/69778510/7325599">https://stackoverflow.com/q/69778510/7325599</a></pre>
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