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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - alignof(reference_to_type) doesn't return alignof(referenced_type) as it ought to, by the standard"
href="https://bugs.llvm.org/show_bug.cgi?id=45890">45890</a>
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<th>Summary</th>
<td>alignof(reference_to_type) doesn't return alignof(referenced_type) as it ought to, by the standard
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>unspecified
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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
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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>sinbal2l@gmail.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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<p>
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<pre>From the C++ standard:
7.6.2.5 Alignof [expr.alignof]p3
3 When alignof is applied to a reference type, the result is the alignment of
the *referenced* type.
IINM, in the latest version, the returned value is of the reference itself:
#include <stdio.h>
int main() {
alignas(32) double d;
double &ref_d = d;
printf("Alignment of d: %d\n", alignof(d)); // 32
printf("Alignment of ref_d: %d\n", alignof(ref_d)); // 8
}
<a href="https://godbolt.org/z/MnG6vb">https://godbolt.org/z/MnG6vb</a>
P.S. thank you very much for doing such a great job! (2) (43353)</pre>
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