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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - constexpr evaluation fails with string init"
href="https://bugs.llvm.org/show_bug.cgi?id=40430">40430</a>
</td>
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<th>Summary</th>
<td>constexpr evaluation fails with string init
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>efriedma@codeaurora.org
</td>
</tr>
<tr>
<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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<p>
<div>
<pre>struct S {
char c[10] = "asdf";
constexpr char foo() { return c[3]; }
};
static_assert(S().foo() == 'f', "");
<stdin>:5:15: error: static_assert expression is not an integral constant
expression
static_assert(S().foo() == 'f', "");
^~~~~~~~~~~~~~~~
<stdin>:2:16: note: subexpression not valid in a constant expression
char c[10] = "asdf";
^
<stdin>:5:15: note: in call to 'S()'
static_assert(S().foo() == 'f', "");
^
1 error generated.
Synthetic testcase I came up with looking at the array vs. lvalue confusion in
constant evaluation.</pre>
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