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Merge [84506] from trunk: Document that constructors initialize enable_shared_from_this. Fixes #8573.

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[SVN r84507]
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Peter Dimov
2013-05-26 13:39:04 +00:00
parent 9355404d10
commit 6eefc6bf81
1 changed files with 11 additions and 3 deletions
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14
shared_ptr.htm
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@@ -262,8 +262,12 @@ shared_ptr(std::nullptr_t); // never throws</pre>
the pointer <code>p</code>. the pointer <code>p</code>.
Otherwise, constructs a <code>shared_ptr</code> that <em>owns</em> Otherwise, constructs a <code>shared_ptr</code> that <em>owns</em>
<code>p</code> and a deleter of an unspecified type that calls <code>delete[] p</code>.</p> <code>p</code> and a deleter of an unspecified type that calls <code>delete[] p</code>.</p>
<p><b>Postconditions:</b> <code>use_count() == 1 &amp;&amp; get() == p</code>.</p> <p><b>Postconditions:</b> <code>use_count() == 1 &amp;&amp; get() == p</code>.
<p><b>Throws:</b> <code>std::bad_alloc</code>, or an implementation-defined If <code>T</code> is not an array type and <code>p</code> is unambiguously convertible to <code>
<a href="enable_shared_from_this.html">enable_shared_from_this</a>&lt;V&gt;*</code>
for some <code>V</code>, <code>p-&gt;shared_from_this()</code> returns a copy of
<code>*this</code>.</p>
<p><b>Throws:</b> <code>std::bad_alloc</code>, or an implementation-defined
exception when a resource other than memory could not be obtained.</p> exception when a resource other than memory could not be obtained.</p>
<p><b>Exception safety:</b> If an exception is thrown, the constructor calls <p><b>Exception safety:</b> If an exception is thrown, the constructor calls
<code>delete[] p</code>, when <code>T</code> is an array type, <code>delete[] p</code>, when <code>T</code> is an array type,
@@ -296,7 +300,11 @@ template&lt;class D, class A&gt; shared_ptr(std::nullptr_t p, D d, A a);</pre>
<p><b>Effects:</b> Constructs a <code>shared_ptr</code> that <em>owns</em> the pointer <code> <p><b>Effects:</b> Constructs a <code>shared_ptr</code> that <em>owns</em> the pointer <code>
p</code> and the deleter <code>d</code>. The constructors taking an allocator <code>a</code> p</code> and the deleter <code>d</code>. The constructors taking an allocator <code>a</code>
allocate memory using a copy of <code>a</code>.</p> allocate memory using a copy of <code>a</code>.</p>
<p><b>Postconditions:</b> <code>use_count() == 1 &amp;&amp; get() == p</code>.</p> <p><b>Postconditions:</b> <code>use_count() == 1 &amp;&amp; get() == p</code>.
If <code>T</code> is not an array type and <code>p</code> is unambiguously convertible to <code>
<a href="enable_shared_from_this.html">enable_shared_from_this</a>&lt;V&gt;*</code>
for some <code>V</code>, <code>p-&gt;shared_from_this()</code> returns a copy of
<code>*this</code>.</p>
<p><b>Throws:</b> <code>std::bad_alloc</code>, or an implementation-defined <p><b>Throws:</b> <code>std::bad_alloc</code>, or an implementation-defined
exception when a resource other than memory could not be obtained.</p> exception when a resource other than memory could not be obtained.</p>
<p><b>Exception safety:</b> If an exception is thrown, <code>d(p)</code> is called.</p> <p><b>Exception safety:</b> If an exception is thrown, <code>d(p)</code> is called.</p>