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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang disagrees with {gcc,icc,msvc} about ambiguous name"
href="https://bugs.llvm.org/show_bug.cgi?id=35042">35042</a>
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<th>Summary</th>
<td>clang disagrees with {gcc,icc,msvc} about ambiguous name
</td>
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<th>Product</th>
<td>clang
</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>Linux
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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>chisophugis@gmail.com
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<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
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<p>
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<pre>GCC and clang seem to disagree about whether the reference to `isa` in this
snippet is valid:
namespace myarch {
namespace isa {
}
}
using namespace myarch;
namespace llvm {
template <typename T>
void isa() {}
}
using namespace llvm;
void f() {
isa<int>();
}
Clang accepts this code. GCC says `error: reference to 'isa' is ambiguous`.
<a href="https://godbolt.org/g/ix2jsS">https://godbolt.org/g/ix2jsS</a>
Also, ICC and MSVC seem to believe that it is ambiguous as well.</pre>
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