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<body><span class="vcard"><a class="email" href="mailto:piotr.szeplik@nsn.com" title="piotr.szeplik@nsn.com">piotr.szeplik@nsn.com</a>
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<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - AddressSanitizer reports false positive global-buffer-overflow."
href="http://llvm.org/bugs/show_bug.cgi?id=20473">bug 20473</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>RESOLVED
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<td>REOPENED
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<td style="text-align:right;">Resolution</td>
<td>INVALID
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<td>---
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - AddressSanitizer reports false positive global-buffer-overflow."
href="http://llvm.org/bugs/show_bug.cgi?id=20473#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - AddressSanitizer reports false positive global-buffer-overflow."
href="http://llvm.org/bugs/show_bug.cgi?id=20473">bug 20473</a>
from <span class="vcard"><a class="email" href="mailto:piotr.szeplik@nsn.com" title="piotr.szeplik@nsn.com">piotr.szeplik@nsn.com</a>
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<pre>(In reply to <a href="show_bug.cgi?id=20473#c2">comment #2</a>)
<span class="quote">> Isn't this an actual bug in the code that asan correctly reports?
>
> You are initializing a char array of 3 elements with "",
> which is a char array with 2 elements.</span >
This is correct. It is guaranteed by the standard (section 8.5.2
[dcl.init.string] paragraph number 3) where you can read:
"If there are fewer initializers than there are array elements, each element
not explicitly initialized shall be zero-initialized."
Please also notice that the issue disappear if you change a layout of the
structure like below:
struct test
{
char b[3];
char a[2];
};
<span class="quote">> (Please reopen the bug if you disagree)</span >
OK.
Best regards,</pre>
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