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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - std::function does not have deduction guides"
href="https://bugs.llvm.org/show_bug.cgi?id=39606">39606</a>
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<th>Summary</th>
<td>std::function does not have deduction guides
</td>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</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>
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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>ldionne@apple.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
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<pre>We're missing deduction guides for std::function. The following code does not
compile with libc++ trunk:
--------------------------------------
#include <functional>
int func(double) { return 0; }
int main() {
std::function f{func}; // guide #1 deduces function<int(double)>
int i = 5;
std::function g = [&](double) { return i; }; // guide #2 deduces
function<int(double)>
}
--------------------------------------
Taken from SO question: <a href="https://stackoverflow.com/q/53217511/1708801">https://stackoverflow.com/q/53217511/1708801</a></pre>
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