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More restrictive assignment from optional<U>

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This commit is contained in:
Andrzej Krzemienski
2015-03-06 19:20:45 +01:00
parent 16023fe934
commit 59266a2630
8 changed files with 444 additions and 175 deletions
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doc/html/boost_optional/relnotes.html
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@ -52,6 +52,10 @@
This can be used to work around <a href="https://svn.boost.org/trac/boost/ticket/10399" target="_top">Trac
#10399</a>
</li>
<li class="listitem">
It is no longer possible to assign <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">U</span><span class="special">&gt;</span></code> to <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code> when <code class="computeroutput"><span class="identifier">U</span></code>
is not assignable or convertible to <code class="computeroutput"><span class="identifier">T</span></code>.
</li>
</ul></div>
<h4>
<a name="boost_optional.relnotes.h1"></a>