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<h1 class="topictitle1">thread Class Members</h1>
<div>
<div class="tablenoborder"><table cellpadding="4" summary="" frame="border" border="1" cellspacing="0" rules="all"><span class="tabledesc">The following table provides additional information on the members
of this template class.
</span><thead align="left">
<tr>
<th class="cellrowborder" valign="top" width="33.89830508474576%" id="d124061e29">Member
</th>
<th class="cellrowborder" valign="top" width="66.10169491525423%" id="d124061e32">Description
</th>
</tr>
</thead>
<tbody>
<tr>
<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d124061e29 "><span class="keyword">thread()</span>
</td>
<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d124061e32 ">
<p>Constructs a thread that does not represent
a thread of execution, with get_id()==id().
</p>
</td>
</tr>
<tr>
<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d124061e29 "><span class="keyword">template<typename F> thread(F
f)</span>
</td>
<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d124061e32 ">
<p>Construct a thread that evaluates f()
</p>
</td>
</tr>
<tr>
<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d124061e29 "><span class="keyword">template<typename F, typename
X> thread(F f, X x)</span>
</td>
<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d124061e32 ">
<p>Constructs a thread that evaluates f(x).
</p>
</td>
</tr>
<tr>
<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d124061e29 "><span class="keyword">template<typename F, typename X,
typename Y> thread(F f, X x, Y y)</span>
</td>
<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d124061e32 ">
<p>Constructs thread that evaluates f(x,y).
</p>
</td>
</tr>
<tr>
<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d124061e29 "><span class="keyword">thread& operator=(thread&
x)</span>
</td>
<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d124061e32 ">
<p>If joinable(), calls detach(). Then assigns the state of x to
*this and sets x to default constructed state.
</p>
<div class="Note"><h3 class="NoteTipHead">
Caution</h3>
<p> Assignment moves the state instead of copying it.
</p>
</div>
</td>
</tr>
<tr>
<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d124061e29 "><span class="keyword">~thread</span>
</td>
<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d124061e32 ">
<p>if( joinable() ) detach().
</p>
</td>
</tr>
<tr>
<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d124061e29 "><span class="keyword">bool joinable() const</span>
</td>
<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d124061e32 ">
<p><strong>Returns</strong>: get_id()!=id()
</p>
</td>
</tr>
<tr>
<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d124061e29 "><span class="keyword">void join()</span>
</td>
<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d124061e32 ">
<p><strong>Requirements</strong>: joinable()==true
</p>
<p><strong>Effects</strong>: Wait for thread to complete. Afterwards,
joinable()==false.
</p>
</td>
</tr>
<tr>
<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d124061e29 "><span class="keyword">void detach()</span>
</td>
<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d124061e32 ">
<p><strong>Requirements</strong>: joinable()==true
</p>
<p><strong>Effects</strong>: Sets *this to default constructed state and
returns without blocking. The thread represented by *this continues execution.
</p>
</td>
</tr>
<tr>
<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d124061e29 "><span class="keyword">id get_id() const</span>
</td>
<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d124061e32 ">
<p><strong>Returns</strong>: id of the thread, or a default-constructed id
if *this does not represent a thread.
</p>
</td>
</tr>
<tr>
<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d124061e29 "><span class="keyword">native_handle_type
native_handle()</span>
</td>
<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d124061e32 ">
<p><strong>Returns</strong>: Native thread handle. The handle is a HANDLE
on Windows* operating systems and a pthread_t on Linux* and OS X* operating
systems. For these systems, native_handle() returns 0 if joinable()==false.
</p>
</td>
</tr>
<tr>
<td class="cellrowborder" valign="top" width="33.89830508474576%" headers="d124061e29 "><span class="keyword">static unsigned
hardware_concurrency()</span>
</td>
<td class="cellrowborder" valign="top" width="66.10169491525423%" headers="d124061e32 ">
<p><strong>Returns</strong>: The number of hardware
threads. For example, 4 on a system with a single Intel® Core™2 Quad processor.
</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="../../../reference/threads/thread_cls.htm">thread Class</a></div>
</div>
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