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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 - Assigning to std::vector element with simultaneous reallocation of this vector"
href="http://llvm.org/bugs/show_bug.cgi?id=17318">bug 17318</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>NEW
</td>
<td>RESOLVED
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<td style="text-align:right;">CC</td>
<td>
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<td>richard-llvm@metafoo.co.uk
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>INVALID
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Assigning to std::vector element with simultaneous reallocation of this vector"
href="http://llvm.org/bugs/show_bug.cgi?id=17318#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Assigning to std::vector element with simultaneous reallocation of this vector"
href="http://llvm.org/bugs/show_bug.cgi?id=17318">bug 17318</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>(In reply to <a href="show_bug.cgi?id=17318#c0">comment #0</a>)
<span class="quote">> Hi! I've noticed, that if you assign value to item of std::vector, the left
> part takes address of item before evaluating right part, so in case if you
> have resized vector in right part for example in function, assigning will be
> done to deleted item (because it was deleted during resize). It differs from
> g++ behavior, so some "correct g++ code" can crash. Is this bug or feature,
> or my code isn't correct in this case?</span >
Your code is incorrect. The operands of an assignment (or in this case, a
function call -- to an assignment operator) are not evaluated in any particular
sequence, and a compiler can evaluate them in any order it likes (or even
interleave the evaluation, subject to a few restrictions).</pre>
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