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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="boost_typeindex.examples"></a><a class="link" href="examples.html" title="Examples">Examples</a>
</h2></div></div></div>
<div class="toc"><dl class="toc">
<dt><span class="section"><a href="examples.html#boost_typeindex.examples.getting_human_readable_and_mangl">Getting
human readable and mangled type names</a></span></dt>
<dt><span class="section"><a href="examples.html#boost_typeindex.examples.storing_information_about_a_type">Storing
information about a type in container </a></span></dt>
<dt><span class="section"><a href="examples.html#boost_typeindex.examples.getting_through_the_inheritance_">Getting
through the inheritance to receive a real type name </a></span></dt>
<dt><span class="section"><a href="examples.html#boost_typeindex.examples.exact_type_matching_storing_type">Exact
type matching: storing type with const, volatile and reference qualifiers</a></span></dt>
<dt><span class="section"><a href="examples.html#boost_typeindex.examples.table_of_raw_name_and_pretty_nam">Table
of raw_name() and pretty_name() outputs with and without RTTI </a></span></dt>
</dl></div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_typeindex.examples.getting_human_readable_and_mangl"></a><a class="link" href="examples.html#boost_typeindex.examples.getting_human_readable_and_mangl" title="Getting human readable and mangled type names">Getting
human readable and mangled type names</a>
</h3></div></div></div>
<p>
The following example shows how short (mangled) and human readable type names
could be obtained from a type. Works with and without RTTI.
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">type_index</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span>
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">></span>
<span class="keyword">void</span> <span class="identifier">foo</span><span class="special">(</span><span class="identifier">T</span><span class="special">)</span> <span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"\n Short name: "</span> <span class="special"><<</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">type_id</span><span class="special"><</span><span class="identifier">T</span><span class="special">>().</span><span class="identifier">raw_name</span><span class="special">();</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"\n Readable name: "</span> <span class="special"><<</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">type_id</span><span class="special"><</span><span class="identifier">T</span><span class="special">>().</span><span class="identifier">pretty_name</span><span class="special">();</span>
<span class="special">}</span>
<span class="keyword">struct</span> <span class="identifier">user_defined_type</span><span class="special">{};</span>
<span class="keyword">namespace</span> <span class="identifier">ns1</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">ns2</span> <span class="special">{</span>
<span class="keyword">struct</span> <span class="identifier">user_defined_type</span><span class="special">{};</span>
<span class="special">}}</span> <span class="comment">// namespace ns1::ns2</span>
<span class="keyword">namespace</span> <span class="special">{</span>
<span class="keyword">struct</span> <span class="identifier">in_anon_type</span><span class="special">{};</span>
<span class="special">}</span> <span class="comment">// anonymous namespace</span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
<span class="comment">// Call to</span>
<span class="identifier">foo</span><span class="special">(</span><span class="number">1</span><span class="special">);</span>
<span class="comment">// will output something like this:</span>
<span class="comment">//</span>
<span class="comment">// (RTTI on) (RTTI off)</span>
<span class="comment">// Short name: i Short name: int]</span>
<span class="comment">// Readable name: int Readable name: int</span>
<span class="identifier">user_defined_type</span> <span class="identifier">t</span><span class="special">;</span>
<span class="identifier">foo</span><span class="special">(</span><span class="identifier">t</span><span class="special">);</span>
<span class="comment">// Will output:</span>
<span class="comment">//</span>
<span class="comment">// (RTTI on) (RTTI off)</span>
<span class="comment">// Short name: 17user_defined_type user_defined_type]</span>
<span class="comment">// Readable name: user_defined_type user_defined_type</span>
<span class="identifier">ns1</span><span class="special">::</span><span class="identifier">ns2</span><span class="special">::</span><span class="identifier">user_defined_type</span> <span class="identifier">t_in_ns</span><span class="special">;</span>
<span class="identifier">foo</span><span class="special">(</span><span class="identifier">t_in_ns</span><span class="special">);</span>
<span class="comment">// Will output:</span>
<span class="comment">//</span>
<span class="comment">// (RTTI on) (RTTI off)</span>
<span class="comment">// Short name: N3ns13ns217user_defined_typeE ns1::ns2::user_defined_type]</span>
<span class="comment">// Readable name: ns1::ns2::user_defined_type ns1::ns2::user_defined_type</span>
<span class="identifier">in_anon_type</span> <span class="identifier">anon_t</span><span class="special">;</span>
<span class="identifier">foo</span><span class="special">(</span><span class="identifier">anon_t</span><span class="special">);</span>
<span class="comment">// Will output:</span>
<span class="comment">//</span>
<span class="comment">// (RTTI on) (RTTI off)</span>
<span class="comment">// Short name: N12_GLOBAL__N_112in_anon_typeE {anonymous}::in_anon_type]</span>
<span class="comment">// Readable name: (anonymous namespace)::in_anon_type {anonymous}::in_anon_type</span>
<span class="special">}</span>
</pre>
<p>
Short names are very compiler dependant: some compiler will output <code class="computeroutput"><span class="special">.</span><span class="identifier">H</span></code>, others
<code class="computeroutput"><span class="identifier">i</span></code>.
</p>
<p>
Readable names may also differ between compilers: <code class="computeroutput"><span class="keyword">struct</span>
<span class="identifier">user_defined_type</span></code>, <code class="computeroutput"><span class="identifier">user_defined_type</span></code>.
</p>
<div class="warning"><table border="0" summary="Warning">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="../../../doc/src/images/warning.png"></td>
<th align="left">Warning</th>
</tr>
<tr><td align="left" valign="top"><p>
With RTTI off different classes with same names in anonymous namespace
may collapse. See 'RTTI emulation limitations'.
</p></td></tr>
</table></div>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_typeindex.examples.storing_information_about_a_type"></a><a class="link" href="examples.html#boost_typeindex.examples.storing_information_about_a_type" title="Storing information about a type in container">Storing
information about a type in container </a>
</h3></div></div></div>
<p>
The following example shows how an information about a type could be stored.
Example works with and without RTTI.
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">type_index</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">unordered_set</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">functional</span><span class="special">/</span><span class="identifier">hash</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">cassert</span><span class="special">></span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">unordered_set</span><span class="special"><</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">type_index</span><span class="special">></span> <span class="identifier">types</span><span class="special">;</span>
<span class="comment">// Storing some `boost::type_info`s</span>
<span class="identifier">types</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">type_id</span><span class="special"><</span><span class="keyword">int</span><span class="special">>());</span>
<span class="identifier">types</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">type_id</span><span class="special"><</span><span class="keyword">float</span><span class="special">>());</span>
<span class="comment">// `types` variable contains two `boost::type_index`es:</span>
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">types</span><span class="special">.</span><span class="identifier">size</span><span class="special">()</span> <span class="special">==</span> <span class="number">2</span><span class="special">);</span>
<span class="comment">// Const, volatile and reference will be striped from the type:</span>
<span class="keyword">bool</span> <span class="identifier">is_inserted</span> <span class="special">=</span> <span class="identifier">types</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">type_id</span><span class="special"><</span><span class="keyword">const</span> <span class="keyword">int</span><span class="special">>()).</span><span class="identifier">second</span><span class="special">;</span>
<span class="identifier">assert</span><span class="special">(!</span><span class="identifier">is_inserted</span><span class="special">);</span>
<span class="identifier">assert</span><span class="special">(</span><span class="identifier">types</span><span class="special">.</span><span class="identifier">erase</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">type_id</span><span class="special"><</span><span class="keyword">float</span><span class="special">&>())</span> <span class="special">==</span> <span class="number">1</span><span class="special">);</span>
<span class="comment">// We have erased the `float` type, only `int` remains</span>
<span class="identifier">assert</span><span class="special">(*</span><span class="identifier">types</span><span class="special">.</span><span class="identifier">begin</span><span class="special">()</span> <span class="special">==</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">type_id</span><span class="special"><</span><span class="keyword">int</span><span class="special">>());</span>
<span class="special">}</span>
</pre>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_typeindex.examples.getting_through_the_inheritance_"></a><a class="link" href="examples.html#boost_typeindex.examples.getting_through_the_inheritance_" title="Getting through the inheritance to receive a real type name">Getting
through the inheritance to receive a real type name </a>
</h3></div></div></div>
<p>
The following example shows that <code class="computeroutput"><span class="identifier">type_info</span></code>
is able to store the real type, successfully getting through all the inheritances.
</p>
<p>
Example works with and without RTTI."
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">type_index</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span>
<span class="keyword">struct</span> <span class="identifier">A</span> <span class="special">{</span>
<span class="identifier">BOOST_TYPE_INDEX_REGISTER_CLASS</span>
<span class="keyword">virtual</span> <span class="special">~</span><span class="identifier">A</span><span class="special">(){}</span>
<span class="special">};</span>
<span class="keyword">struct</span> <span class="identifier">B</span><span class="special">:</span> <span class="keyword">public</span> <span class="identifier">A</span> <span class="special">{</span> <span class="identifier">BOOST_TYPE_INDEX_REGISTER_CLASS</span> <span class="special">};</span>
<span class="keyword">struct</span> <span class="identifier">C</span><span class="special">:</span> <span class="keyword">public</span> <span class="identifier">B</span> <span class="special">{</span> <span class="identifier">BOOST_TYPE_INDEX_REGISTER_CLASS</span> <span class="special">};</span>
<span class="keyword">void</span> <span class="identifier">print_real_type</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">A</span><span class="special">&</span> <span class="identifier">a</span><span class="special">)</span> <span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">type_id_runtime</span><span class="special">(</span><span class="identifier">a</span><span class="special">).</span><span class="identifier">pretty_name</span><span class="special">()</span> <span class="special"><<</span> <span class="char">'\n'</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
<span class="identifier">C</span> <span class="identifier">c</span><span class="special">;</span>
<span class="keyword">const</span> <span class="identifier">A</span><span class="special">&</span> <span class="identifier">c_as_a</span> <span class="special">=</span> <span class="identifier">c</span><span class="special">;</span>
<span class="identifier">print_real_type</span><span class="special">(</span><span class="identifier">c_as_a</span><span class="special">);</span> <span class="comment">// Outputs `struct C`</span>
<span class="identifier">print_real_type</span><span class="special">(</span><span class="identifier">B</span><span class="special">());</span> <span class="comment">// Outputs `struct B`</span>
<span class="special">}</span>
</pre>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_typeindex.examples.exact_type_matching_storing_type"></a><a class="link" href="examples.html#boost_typeindex.examples.exact_type_matching_storing_type" title="Exact type matching: storing type with const, volatile and reference qualifiers">Exact
type matching: storing type with const, volatile and reference qualifiers</a>
</h3></div></div></div>
<p>
The following example shows that <code class="computeroutput"><span class="identifier">type_index</span></code>
(and <code class="computeroutput"><span class="identifier">type_info</span></code>) is able to
store the exact type, without stripping const, volatile and references. Example
works with and without RTTI.
</p>
<p>
In this example we'll create a class that stores a pointer to function and
remembers the exact type of the parameter the function accepts. When the
call to the bound function is made, he actual input parameter type is checked
against the stored parameter type and an exception is thrown in case of mismatch.
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">type_index</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span>
<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">stdexcept</span><span class="special">></span>
<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">cassert</span><span class="special">></span>
<span class="keyword">class</span> <span class="identifier">type_erased_unary_function</span> <span class="special">{</span>
<span class="keyword">void</span><span class="special">*</span> <span class="identifier">function_ptr_</span><span class="special">;</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">type_index</span> <span class="identifier">exact_param_t_</span><span class="special">;</span>
<span class="keyword">public</span><span class="special">:</span>
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">ParamT</span><span class="special">></span>
<span class="identifier">type_erased_unary_function</span><span class="special">(</span><span class="keyword">void</span><span class="special">(*</span><span class="identifier">ptr</span><span class="special">)(</span><span class="identifier">ParamT</span><span class="special">))</span>
<span class="special">:</span> <span class="identifier">function_ptr_</span><span class="special">(</span><span class="keyword">reinterpret_cast</span><span class="special"><</span><span class="keyword">void</span><span class="special">*>(</span><span class="identifier">ptr</span><span class="special">))</span> <span class="comment">// ptr - is a pointer to function returning `void` and accepting parameter of type `ParamT`</span>
<span class="special">,</span> <span class="identifier">exact_param_t_</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">type_id_with_cvr</span><span class="special"><</span><span class="identifier">ParamT</span><span class="special">>())</span>
<span class="special">{}</span>
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">ParamT</span><span class="special">></span>
<span class="keyword">void</span> <span class="identifier">call</span><span class="special">(</span><span class="identifier">ParamT</span> <span class="identifier">v</span><span class="special">)</span> <span class="special">{</span>
<span class="keyword">if</span> <span class="special">(</span><span class="identifier">exact_param_t_</span> <span class="special">!=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">type_id_with_cvr</span><span class="special"><</span><span class="identifier">ParamT</span><span class="special">>())</span> <span class="special">{</span>
<span class="keyword">throw</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">runtime_error</span><span class="special">(</span><span class="string">"Incorrect `ParamT`"</span><span class="special">);</span>
<span class="special">}</span>
<span class="keyword">return</span> <span class="special">(</span><span class="keyword">reinterpret_cast</span><span class="special"><</span><span class="keyword">void</span><span class="special">(*)(</span><span class="identifier">ParamT</span><span class="special">)>(</span><span class="identifier">function_ptr_</span><span class="special">))(</span><span class="identifier">v</span><span class="special">);</span>
<span class="special">}</span>
<span class="special">};</span>
<span class="keyword">void</span> <span class="identifier">foo</span><span class="special">(</span><span class="keyword">int</span><span class="special">){}</span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
<span class="identifier">type_erased_unary_function</span> <span class="identifier">func</span><span class="special">(&</span><span class="identifier">foo</span><span class="special">);</span>
<span class="identifier">func</span><span class="special">.</span><span class="identifier">call</span><span class="special">(</span><span class="number">100</span><span class="special">);</span> <span class="comment">// OK, `100` has type `int`</span>
<span class="keyword">try</span> <span class="special">{</span>
<span class="keyword">int</span> <span class="identifier">i</span> <span class="special">=</span> <span class="number">100</span><span class="special">;</span>
<span class="comment">// An attempt to convert stored function to a function accepting reference</span>
<span class="identifier">func</span><span class="special">.</span><span class="identifier">call</span><span class="special"><</span><span class="keyword">int</span><span class="special">&>(</span><span class="identifier">i</span><span class="special">);</span> <span class="comment">// Will throw, because types `int&` and `int` mismatch</span>
<span class="identifier">assert</span><span class="special">(</span><span class="keyword">false</span><span class="special">);</span>
<span class="special">}</span> <span class="keyword">catch</span> <span class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">runtime_error</span><span class="special">&</span> <span class="comment">/*e*/</span><span class="special">)</span> <span class="special">{}</span>
<span class="special">}</span>
</pre>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="boost_typeindex.examples.table_of_raw_name_and_pretty_nam"></a><a class="link" href="examples.html#boost_typeindex.examples.table_of_raw_name_and_pretty_nam" title="Table of raw_name() and pretty_name() outputs with and without RTTI">Table
of raw_name() and pretty_name() outputs with and without RTTI </a>
</h3></div></div></div>
<p>
The following example shows how different type names look when we explicitly
use classes for RTTI and RTT off.
</p>
<p>
This example requires RTTI. For a more portable example see 'Getting human
readable and mangled type names':
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">type_index</span><span class="special">/</span><span class="identifier">stl_type_index</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">type_index</span><span class="special">/</span><span class="identifier">ctti_type_index</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span>
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">></span>
<span class="keyword">void</span> <span class="identifier">print</span><span class="special">(</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*</span> <span class="identifier">name</span><span class="special">)</span> <span class="special">{</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">stl_type_index</span> <span class="identifier">sti</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">stl_type_index</span><span class="special">::</span><span class="identifier">type_id</span><span class="special"><</span><span class="identifier">T</span><span class="special">>();</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">ctti_type_index</span> <span class="identifier">cti</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">typeindex</span><span class="special">::</span><span class="identifier">ctti_type_index</span><span class="special">::</span><span class="identifier">type_id</span><span class="special"><</span><span class="identifier">T</span><span class="special">>();</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"\t["</span> <span class="comment">/* start of the row */</span>
<span class="special"><<</span> <span class="string">"["</span> <span class="special"><<</span> <span class="identifier">name</span> <span class="special"><<</span> <span class="string">"]"</span>
<span class="special"><<</span> <span class="string">"[`"</span> <span class="special"><<</span> <span class="identifier">sti</span><span class="special">.</span><span class="identifier">raw_name</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"`] "</span>
<span class="special"><<</span> <span class="string">"[`"</span> <span class="special"><<</span> <span class="identifier">sti</span><span class="special">.</span><span class="identifier">pretty_name</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"`] "</span>
<span class="special"><<</span> <span class="string">"[`"</span> <span class="special"><<</span> <span class="identifier">cti</span><span class="special">.</span><span class="identifier">raw_name</span><span class="special">()</span> <span class="special"><<</span> <span class="string">"`] "</span>
<span class="special"><<</span> <span class="string">"]\n"</span> <span class="comment">/* end of the row */</span> <span class="special">;</span>
<span class="special">}</span>
<span class="keyword">struct</span> <span class="identifier">user_defined_type</span><span class="special">{};</span>
<span class="keyword">namespace</span> <span class="identifier">ns1</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">ns2</span> <span class="special">{</span>
<span class="keyword">struct</span> <span class="identifier">user_defined_type</span><span class="special">{};</span>
<span class="special">}}</span> <span class="comment">// namespace ns1::ns2</span>
<span class="keyword">namespace</span> <span class="special">{</span>
<span class="keyword">struct</span> <span class="identifier">in_anon_type</span><span class="special">{};</span>
<span class="special">}</span> <span class="comment">// anonymous namespace</span>
<span class="keyword">namespace</span> <span class="identifier">ns3</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">ns4</span> <span class="special">{</span>
<span class="keyword">struct</span> <span class="identifier">in_anon_type</span><span class="special">{};</span>
<span class="special">}}}</span> <span class="comment">// namespace ns3::{anonymous}::ns4</span>
<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">T0</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T1</span><span class="special">></span>
<span class="keyword">class</span> <span class="identifier">templ</span> <span class="special">{};</span>
<span class="keyword">template</span> <span class="special"><></span>
<span class="keyword">class</span> <span class="identifier">templ</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">></span> <span class="special">{};</span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"[table:id Table of names\n"</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"\t[[Type] [RTTI & raw_name] [RTTI & pretty_name] [noRTTI & raw_name]]\n"</span><span class="special">;</span>
<span class="identifier">print</span><span class="special"><</span><span class="identifier">user_defined_type</span><span class="special">>(</span><span class="string">"User defined type"</span><span class="special">);</span>
<span class="identifier">print</span><span class="special"><</span><span class="identifier">in_anon_type</span><span class="special">>(</span><span class="string">"In anonymous namespace"</span><span class="special">);</span>
<span class="identifier">print</span><span class="special"><</span><span class="identifier">ns3</span><span class="special">::</span><span class="identifier">ns4</span><span class="special">::</span><span class="identifier">in_anon_type</span><span class="special">>(</span><span class="string">"In ns3::{anonymous}::ns4 namespace"</span><span class="special">);</span>
<span class="identifier">print</span><span class="special"><</span><span class="identifier">templ</span><span class="special"><</span><span class="keyword">short</span><span class="special">,</span> <span class="keyword">int</span><span class="special">></span> <span class="special">>(</span><span class="string">"Template class"</span><span class="special">);</span>
<span class="identifier">print</span><span class="special"><</span><span class="identifier">templ</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">></span> <span class="special">>(</span><span class="string">"Template class (full specialization)"</span><span class="special">);</span>
<span class="identifier">print</span><span class="special"><</span><span class="identifier">templ</span><span class="special"><</span>
<span class="identifier">templ</span><span class="special"><</span><span class="keyword">char</span><span class="special">,</span> <span class="keyword">signed</span> <span class="keyword">char</span><span class="special">>,</span>
<span class="identifier">templ</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">user_defined_type</span><span class="special">></span>
<span class="special">></span> <span class="special">>(</span><span class="string">"Template class with templae classes"</span><span class="special">);</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"]\n"</span><span class="special">;</span>
<span class="special">}</span>
</pre>
<p>
Code from the example will produce the following table:
</p>
<div class="table">
<a name="boost_typeindex.examples.table_of_raw_name_and_pretty_nam.id"></a><p class="title"><b>Table 35.2. Table of names</b></p>
<div class="table-contents"><table class="table" summary="Table of names">
<colgroup>
<col>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Type
</p>
</th>
<th>
<p>
RTTI & raw_name
</p>
</th>
<th>
<p>
RTTI & pretty_name
</p>
</th>
<th>
<p>
noRTTI & raw_name
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
User defined type
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="number">17u</span><span class="identifier">ser_defined_type</span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">user_defined_type</span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">user_defined_type</span><span class="special">]</span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
In anonymous namespace
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">N12_GLOBAL__N_112in_anon_typeE</span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="special">(</span><span class="identifier">anonymous</span>
<span class="keyword">namespace</span><span class="special">)::</span><span class="identifier">in_anon_type</span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="special">{</span><span class="identifier">anonymous</span><span class="special">}::</span><span class="identifier">in_anon_type</span><span class="special">]</span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
In ns3::{anonymous}::ns4 namespace
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">N3ns312_GLOBAL__N_13ns412in_anon_typeE</span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">ns3</span><span class="special">::(</span><span class="identifier">anonymous</span> <span class="keyword">namespace</span><span class="special">)::</span><span class="identifier">ns4</span><span class="special">::</span><span class="identifier">in_anon_type</span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">ns3</span><span class="special">::{</span><span class="identifier">anonymous</span><span class="special">}::</span><span class="identifier">ns4</span><span class="special">::</span><span class="identifier">in_anon_type</span><span class="special">]</span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
Template class
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="number">5</span><span class="identifier">templIsiE</span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">templ</span><span class="special"><</span><span class="keyword">short</span><span class="special">,</span>
<span class="keyword">int</span><span class="special">></span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">templ</span><span class="special"><</span><span class="keyword">short</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">>]</span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
Template class (full specialization)
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="number">5</span><span class="identifier">templIiiE</span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">templ</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">></span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">templ</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">>]</span></code>
</p>
</td>
</tr>
<tr>
<td>
<p>
Template class with template classes
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="number">5</span><span class="identifier">templIS_IcaES_Ii17user_defined_typeEE</span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">templ</span><span class="special"><</span><span class="identifier">templ</span><span class="special"><</span><span class="keyword">char</span><span class="special">,</span>
<span class="keyword">signed</span> <span class="keyword">char</span><span class="special">>,</span> <span class="identifier">templ</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">user_defined_type</span><span class="special">></span> <span class="special">></span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">templ</span><span class="special"><</span><span class="identifier">templ</span><span class="special"><</span><span class="keyword">char</span><span class="special">,</span>
<span class="keyword">signed</span> <span class="keyword">char</span><span class="special">>,</span> <span class="identifier">templ</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">user_defined_type</span><span class="special">></span> <span class="special">>]</span></code>
</p>
</td>
</tr>
</tbody>
</table></div>
</div>
<br class="table-break"><p>
We have not show the "noRTTI & pretty_name" column in the table
because it is almost equal to "noRTTI & raw_name" column.
</p>
<div class="warning"><table border="0" summary="Warning">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Warning]" src="../../../doc/src/images/warning.png"></td>
<th align="left">Warning</th>
</tr>
<tr><td align="left" valign="top"><p>
With RTTI off different classes with same names in anonymous namespace
may collapse. See 'RTTI emulation limitations'.
</p></td></tr>
</table></div>
</div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright © 2012-2014 Antony Polukhin<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div></td>
</tr></table>
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