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<body><span class="vcard"><a class="email" href="mailto:richard-llvm@metafoo.co.uk" title="Richard Smith <richard-llvm@metafoo.co.uk>"> <span class="fn">Richard Smith</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - access to scope enum through variable not possible"
href="https://bugs.llvm.org/show_bug.cgi?id=46072">bug 46072</a>
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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>INVALID
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>RESOLVED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - access to scope enum through variable not possible"
href="https://bugs.llvm.org/show_bug.cgi?id=46072#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - access to scope enum through variable not possible"
href="https://bugs.llvm.org/show_bug.cgi?id=46072">bug 46072</a>
from <span class="vcard"><a class="email" href="mailto:richard-llvm@metafoo.co.uk" title="Richard Smith <richard-llvm@metafoo.co.uk>"> <span class="fn">Richard Smith</span></a>
</span></b>
<pre>This is subtle, but I believe Clang's behavior is correct. This example:
class a {
enum test {
f
};
};
introduces 'f' as a member of class 'a'. In general, the members of an unscoped
enumeration become members of the enclosing scope. However, this example:
class aa {
enum class test {
f
};
};
does *not* introduce 'f' as a member of class 'aa', only of 'aa::test'.
The syntax 'a.X::b' can only be used to name members of 'a'. So it's valid to
use 'a_.test::f' to name the 'f' member of 'a_', but it's not valid to use
'aa_.test::f', because 'aa::test::f' is not a member of 'aa'.
Here's an analogous situation not involving enumerator name injection:
struct A {
static const int f = 1;
};
struct B {
using test = A;
};
int n = B().test::f; // error, 'A::f' is not a member of 'B'
struct C : A {
using test = A;
};
int m = C().test::f; // OK, 'A::f' is a member of 'C'</pre>
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