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explain why not vector<bool>

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42324 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2007-09-25 22:37:50 +00:00
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docs/ProgrammersManual.html
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@ -1292,8 +1292,15 @@ expensive. Element iteration does not visit elements in a useful order.</p>
</div>
<div class="doc_text">
Unlike the other containers, there are only two bit storage containers, and when
to use each is relatively straightforward.
<p>Unlike the other containers, there are only two bit storage containers, and
choosing when to use each is relatively straightforward.</p>
<p>One additional option is
<tt>std::vector&lt;bool&gt;</tt>: we discourage its use for two reasons 1) the
implementation in many common compilers (e.g. commonly available versions of
GCC) is extremely inefficient and 2) the C++ standards committee is likely to
deprecate this container and/or change it significantly somehow. In any case,
please don't use it.</p>
</div>
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