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Improved documentation. Added some noexcept.

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Andrzej Krzemienski
2014-05-07 17:07:12 +02:00
parent 6a790e0c97
commit f94846ccc5
17 changed files with 405 additions and 329 deletions
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12
doc/html/boost_optional/implementation_notes.html
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@ -31,12 +31,12 @@
currently implemented using a custom aligned storage facility built from <code class="computeroutput"><span class="identifier">alignment_of</span></code> and <code class="computeroutput"><span class="identifier">type_with_alignment</span></code>
(both from Type Traits). It uses a separate boolean flag to indicate the initialization
state. Placement new with <code class="computeroutput"><span class="identifier">T</span></code>'s
copy constructor and <code class="computeroutput"><span class="identifier">T</span></code>'s destructor
are explicitly used to initialize,copy and destroy optional values. As a result,
<code class="computeroutput"><span class="identifier">T</span></code>'s default constructor is
effectively by-passed, but the exception guarantees are basic. It is planned
to replace the current implementation with another with stronger exception
safety, such as a future <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">variant</span></code>.
copy/move constructor and <code class="computeroutput"><span class="identifier">T</span></code>'s
destructor are explicitly used to initialize, copy, move and destroy optional
values. As a result, <code class="computeroutput"><span class="identifier">T</span></code>'s default
constructor is effectively by-passed, but the exception guarantees are basic.
It is planned to replace the current implementation with another with stronger
exception safety, such as a future <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">variant</span></code>.
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