This commit is contained in:
Andrzej Krzemienski
2015-03-09 11:50:10 +01:00
parent 59266a2630
commit 0a8a798c3a
10 changed files with 107 additions and 22 deletions

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@ -2028,9 +2028,13 @@
If both are uninitialized, <code class="computeroutput"><span class="keyword">true</span></code>.
</li>
<li class="listitem">
<span class="bold"><strong>Notes:</strong></span> Pointers have shallow relational
operators while <code class="computeroutput"><span class="identifier">optional</span></code>
has deep relational operators. Do not use <code class="computeroutput"><span class="keyword">operator</span><span class="special">==</span></code> directly in generic code which expect
<span class="bold"><strong>Notes:</strong></span> This definition guarantees that
<code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code>
not containing a value is compared unequal to any <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code> containing any value, and equal to
any other <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code>
not containing a value. Pointers have shallow relational operators while
<code class="computeroutput"><span class="identifier">optional</span></code> has deep relational
operators. Do not use <code class="computeroutput"><span class="keyword">operator</span><span class="special">==</span></code> directly in generic code which expect
to be given either an <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code> or a pointer; use <a href="../../../../../utility/OptionalPointee.html#equal" target="_top"><code class="computeroutput"><span class="identifier">equal_pointees</span><span class="special">()</span></code></a>
instead
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@ -2070,8 +2074,11 @@
<span class="special">:</span> <span class="special">*</span><span class="identifier">x</span> <span class="special">&lt;</span> <span class="special">*</span><span class="identifier">y</span></code>.
</li>
<li class="listitem">
<span class="bold"><strong>Notes:</strong></span> Pointers have shallow relational
operators while <code class="computeroutput"><span class="identifier">optional</span></code>
<span class="bold"><strong>Notes:</strong></span> This definition guarantees that
<code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code>
not containing a value is ordered as less than any <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code> containing any value, and equivalent
to any other <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code> not containing a value. Pointers
have shallow relational operators while <code class="computeroutput"><span class="identifier">optional</span></code>
has deep relational operators. Do not use <code class="computeroutput"><span class="keyword">operator</span><span class="special">&lt;</span></code> directly in generic code which expect
to be given either an <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code> or a pointer; use <a href="../../../../../utility/OptionalPointee.html#less" target="_top"><code class="computeroutput"><span class="identifier">less_pointees</span><span class="special">()</span></code></a>
instead. <code class="computeroutput"><span class="identifier">T</span></code> need not be

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@ -54,7 +54,12 @@
</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>.
is not assignable or convertible to <code class="computeroutput"><span class="identifier">T</span></code>
(<a href="https://svn.boost.org/trac/boost/ticket/11087" target="_top">Trac #11087</a>).
</li>
<li class="listitem">
Value accessors now work correctly on rvalues of <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&amp;&gt;</span></code> (<a href="https://svn.boost.org/trac/boost/ticket/10839" target="_top">Trac
#10839</a>).
</li>
</ul></div>
<h4>