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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - An extern declaration in block scope refers to an incorrect variable."
href="http://llvm.org/bugs/show_bug.cgi?id=18552">18552</a>
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<th>Summary</th>
<td>An extern declaration in block scope refers to an incorrect variable.
</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>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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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>kariya_mitsuru@hotmail.com
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>I think that the following sample code should return 4, but clang returns 1.
// --- main.cc begin ---
static int i = 1; // #1 i has internal linkage
int g() {
int i = 2; // #2 i has no linkage
{
extern int i; // #3
return i;
}
}
int main()
{
return g();
}
// --- main.cc end ---
// --- sub.cc begin ---
int i = 4; // #4 i has external linkage
// --- sub.cc end ---
According to C++11 standard 3.5 p6, #3 should refer to #4 because #1 is not
visible from the point #3.</pre>
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</p>
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