<html><!-- Created using the cpp_pretty_printer from the dlib C++ library. See http://dlib.net for updates. --><head><title>dlib C++ Library - any_trainer.h</title></head><body bgcolor='white'><pre> <font color='#009900'>// Copyright (C) 2010 Davis E. King (davis@dlib.net) </font><font color='#009900'>// License: Boost Software License See LICENSE.txt for the full license. </font><font color='#0000FF'>#ifndef</font> DLIB_AnY_TRAINER_H_ <font color='#0000FF'>#define</font> DLIB_AnY_TRAINER_H_ <font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='any.h.html'>any.h</a>" <font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='any_decision_function.h.html'>any_decision_function.h</a>" <font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='any_trainer_abstract.h.html'>any_trainer_abstract.h</a>" <font color='#0000FF'>#include</font> <font color='#5555FF'><</font>vector<font color='#5555FF'>></font> <font color='#0000FF'>namespace</font> dlib <b>{</b> <font color='#009900'>// ---------------------------------------------------------------------------------------- </font> <font color='#0000FF'>template</font> <font color='#5555FF'><</font> <font color='#0000FF'>typename</font> sample_type_, <font color='#0000FF'>typename</font> scalar_type_ <font color='#5555FF'>=</font> <font color='#0000FF'><u>double</u></font> <font color='#5555FF'>></font> <font color='#0000FF'>class</font> <b><a name='any_trainer'></a>any_trainer</b> <b>{</b> <font color='#0000FF'>public</font>: <font color='#0000FF'>typedef</font> sample_type_ sample_type; <font color='#0000FF'>typedef</font> scalar_type_ scalar_type; <font color='#0000FF'>typedef</font> default_memory_manager mem_manager_type; <font color='#0000FF'>typedef</font> any_decision_function<font color='#5555FF'><</font>sample_type, scalar_type<font color='#5555FF'>></font> trained_function_type; <b><a name='any_trainer'></a>any_trainer</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <b>{</b> <b>}</b> <b><a name='any_trainer'></a>any_trainer</b> <font face='Lucida Console'>(</font> <font color='#0000FF'>const</font> any_trainer<font color='#5555FF'>&</font> item <font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>item.data<font face='Lucida Console'>)</font> <b>{</b> item.data<font color='#5555FF'>-</font><font color='#5555FF'>></font><font color='#BB00BB'>copy_to</font><font face='Lucida Console'>(</font>data<font face='Lucida Console'>)</font>; <b>}</b> <b>}</b> <font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T<font color='#5555FF'>></font> <b><a name='any_trainer'></a>any_trainer</b> <font face='Lucida Console'>(</font> <font color='#0000FF'>const</font> T<font color='#5555FF'>&</font> item <font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>typedef</font> <font color='#0000FF'>typename</font> basic_type<font color='#5555FF'><</font>T<font color='#5555FF'>></font>::type U; data.<font color='#BB00BB'>reset</font><font face='Lucida Console'>(</font><font color='#0000FF'>new</font> derived<font color='#5555FF'><</font>U<font color='#5555FF'>></font><font face='Lucida Console'>(</font>item<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <b>}</b> <font color='#0000FF'><u>void</u></font> <b><a name='clear'></a>clear</b> <font face='Lucida Console'>(</font> <font face='Lucida Console'>)</font> <b>{</b> data.<font color='#BB00BB'>reset</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <b>}</b> <font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T<font color='#5555FF'>></font> <font color='#0000FF'><u>bool</u></font> <b><a name='contains'></a>contains</b> <font face='Lucida Console'>(</font> <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>typedef</font> <font color='#0000FF'>typename</font> basic_type<font color='#5555FF'><</font>T<font color='#5555FF'>></font>::type U; <font color='#0000FF'>return</font> <font color='#0000FF'>dynamic_cast</font><font color='#5555FF'><</font>derived<font color='#5555FF'><</font>U<font color='#5555FF'>></font><font color='#5555FF'>*</font><font color='#5555FF'>></font><font face='Lucida Console'>(</font>data.<font color='#BB00BB'>get</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font>; <b>}</b> <font color='#0000FF'><u>bool</u></font> <b><a name='is_empty'></a>is_empty</b><font face='Lucida Console'>(</font> <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> data.<font color='#BB00BB'>get</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font>; <b>}</b> trained_function_type <b><a name='train'></a>train</b> <font face='Lucida Console'>(</font> <font color='#0000FF'>const</font> std::vector<font color='#5555FF'><</font>sample_type<font color='#5555FF'>></font><font color='#5555FF'>&</font> samples, <font color='#0000FF'>const</font> std::vector<font color='#5555FF'><</font>scalar_type<font color='#5555FF'>></font><font color='#5555FF'>&</font> labels <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#009900'>// make sure requires clause is not broken </font> <font color='#BB00BB'>DLIB_ASSERT</font><font face='Lucida Console'>(</font><font color='#BB00BB'>is_empty</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>false</font>, "<font color='#CC0000'>\t trained_function_type any_trainer::train()</font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>\n\t You can't call train() on an empty any_trainer</font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> "<font color='#CC0000'>\n\t this: </font>" <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#0000FF'>this</font> <font face='Lucida Console'>)</font>; <font color='#0000FF'>return</font> data<font color='#5555FF'>-</font><font color='#5555FF'>></font><font color='#BB00BB'>train</font><font face='Lucida Console'>(</font>samples, labels<font face='Lucida Console'>)</font>; <b>}</b> <font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T<font color='#5555FF'>></font> T<font color='#5555FF'>&</font> <b><a name='cast_to'></a>cast_to</b><font face='Lucida Console'>(</font> <font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>typedef</font> <font color='#0000FF'>typename</font> basic_type<font color='#5555FF'><</font>T<font color='#5555FF'>></font>::type U; derived<font color='#5555FF'><</font>U<font color='#5555FF'>></font><font color='#5555FF'>*</font> d <font color='#5555FF'>=</font> <font color='#0000FF'>dynamic_cast</font><font color='#5555FF'><</font>derived<font color='#5555FF'><</font>U<font color='#5555FF'>></font><font color='#5555FF'>*</font><font color='#5555FF'>></font><font face='Lucida Console'>(</font>data.<font color='#BB00BB'>get</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>d <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>throw</font> <font color='#BB00BB'>bad_any_cast</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <b>}</b> <font color='#0000FF'>return</font> d<font color='#5555FF'>-</font><font color='#5555FF'>></font>item; <b>}</b> <font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T<font color='#5555FF'>></font> <font color='#0000FF'>const</font> T<font color='#5555FF'>&</font> <b><a name='cast_to'></a>cast_to</b><font face='Lucida Console'>(</font> <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>typedef</font> <font color='#0000FF'>typename</font> basic_type<font color='#5555FF'><</font>T<font color='#5555FF'>></font>::type U; derived<font color='#5555FF'><</font>U<font color='#5555FF'>></font><font color='#5555FF'>*</font> d <font color='#5555FF'>=</font> <font color='#0000FF'>dynamic_cast</font><font color='#5555FF'><</font>derived<font color='#5555FF'><</font>U<font color='#5555FF'>></font><font color='#5555FF'>*</font><font color='#5555FF'>></font><font face='Lucida Console'>(</font>data.<font color='#BB00BB'>get</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>d <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>throw</font> <font color='#BB00BB'>bad_any_cast</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <b>}</b> <font color='#0000FF'>return</font> d<font color='#5555FF'>-</font><font color='#5555FF'>></font>item; <b>}</b> <font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T<font color='#5555FF'>></font> T<font color='#5555FF'>&</font> <b><a name='get'></a>get</b><font face='Lucida Console'>(</font> <font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>typedef</font> <font color='#0000FF'>typename</font> basic_type<font color='#5555FF'><</font>T<font color='#5555FF'>></font>::type U; derived<font color='#5555FF'><</font>U<font color='#5555FF'>></font><font color='#5555FF'>*</font> d <font color='#5555FF'>=</font> <font color='#0000FF'>dynamic_cast</font><font color='#5555FF'><</font>derived<font color='#5555FF'><</font>U<font color='#5555FF'>></font><font color='#5555FF'>*</font><font color='#5555FF'>></font><font face='Lucida Console'>(</font>data.<font color='#BB00BB'>get</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>d <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b> d <font color='#5555FF'>=</font> <font color='#0000FF'>new</font> derived<font color='#5555FF'><</font>U<font color='#5555FF'>></font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; data.<font color='#BB00BB'>reset</font><font face='Lucida Console'>(</font>d<font face='Lucida Console'>)</font>; <b>}</b> <font color='#0000FF'>return</font> d<font color='#5555FF'>-</font><font color='#5555FF'>></font>item; <b>}</b> any_trainer<font color='#5555FF'>&</font> <b><a name='operator'></a>operator</b><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font> <font color='#0000FF'>const</font> any_trainer<font color='#5555FF'>&</font> item <font face='Lucida Console'>)</font> <b>{</b> <font color='#BB00BB'>any_trainer</font><font face='Lucida Console'>(</font>item<font face='Lucida Console'>)</font>.<font color='#BB00BB'>swap</font><font face='Lucida Console'>(</font><font color='#5555FF'>*</font><font color='#0000FF'>this</font><font face='Lucida Console'>)</font>; <font color='#0000FF'>return</font> <font color='#5555FF'>*</font><font color='#0000FF'>this</font>; <b>}</b> <font color='#0000FF'><u>void</u></font> <b><a name='swap'></a>swap</b> <font face='Lucida Console'>(</font> any_trainer<font color='#5555FF'>&</font> item <font face='Lucida Console'>)</font> <b>{</b> data.<font color='#BB00BB'>swap</font><font face='Lucida Console'>(</font>item.data<font face='Lucida Console'>)</font>; <b>}</b> <font color='#0000FF'>private</font>: <font color='#0000FF'>struct</font> <b><a name='base'></a>base</b> <b>{</b> <font color='#0000FF'>virtual</font> ~<b><a name='base'></a>base</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <b>{</b><b>}</b> <font color='#0000FF'>virtual</font> trained_function_type <b><a name='train'></a>train</b> <font face='Lucida Console'>(</font> <font color='#0000FF'>const</font> std::vector<font color='#5555FF'><</font>sample_type<font color='#5555FF'>></font><font color='#5555FF'>&</font> samples, <font color='#0000FF'>const</font> std::vector<font color='#5555FF'><</font>scalar_type<font color='#5555FF'>></font><font color='#5555FF'>&</font> labels <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <font color='#5555FF'>=</font> <font color='#979000'>0</font>; <font color='#0000FF'>virtual</font> <font color='#0000FF'><u>void</u></font> <b><a name='copy_to'></a>copy_to</b> <font face='Lucida Console'>(</font> std::unique_ptr<font color='#5555FF'><</font>base<font color='#5555FF'>></font><font color='#5555FF'>&</font> dest <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <font color='#5555FF'>=</font> <font color='#979000'>0</font>; <b>}</b>; <font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T<font color='#5555FF'>></font> <font color='#0000FF'>struct</font> <b><a name='derived'></a>derived</b> : <font color='#0000FF'>public</font> base <b>{</b> T item; <b><a name='derived'></a>derived</b><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font> <b>{</b><b>}</b> <b><a name='derived'></a>derived</b><font face='Lucida Console'>(</font><font color='#0000FF'>const</font> T<font color='#5555FF'>&</font> val<font face='Lucida Console'>)</font> : item<font face='Lucida Console'>(</font>val<font face='Lucida Console'>)</font> <b>{</b><b>}</b> <font color='#0000FF'>virtual</font> <font color='#0000FF'><u>void</u></font> <b><a name='copy_to'></a>copy_to</b> <font face='Lucida Console'>(</font> std::unique_ptr<font color='#5555FF'><</font>base<font color='#5555FF'>></font><font color='#5555FF'>&</font> dest <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> dest.<font color='#BB00BB'>reset</font><font face='Lucida Console'>(</font><font color='#0000FF'>new</font> derived<font color='#5555FF'><</font>T<font color='#5555FF'>></font><font face='Lucida Console'>(</font>item<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <b>}</b> <font color='#0000FF'>virtual</font> trained_function_type <b><a name='train'></a>train</b> <font face='Lucida Console'>(</font> <font color='#0000FF'>const</font> std::vector<font color='#5555FF'><</font>sample_type<font color='#5555FF'>></font><font color='#5555FF'>&</font> samples, <font color='#0000FF'>const</font> std::vector<font color='#5555FF'><</font>scalar_type<font color='#5555FF'>></font><font color='#5555FF'>&</font> labels <font face='Lucida Console'>)</font> <font color='#0000FF'>const</font> <b>{</b> <font color='#0000FF'>return</font> item.<font color='#BB00BB'>train</font><font face='Lucida Console'>(</font>samples, labels<font face='Lucida Console'>)</font>; <b>}</b> <b>}</b>; std::unique_ptr<font color='#5555FF'><</font>base<font color='#5555FF'>></font> data; <b>}</b>; <font color='#009900'>// ---------------------------------------------------------------------------------------- </font> <font color='#0000FF'>template</font> <font color='#5555FF'><</font> <font color='#0000FF'>typename</font> sample_type, <font color='#0000FF'>typename</font> scalar_type <font color='#5555FF'>></font> <font color='#0000FF'>inline</font> <font color='#0000FF'><u>void</u></font> <b><a name='swap'></a>swap</b> <font face='Lucida Console'>(</font> any_trainer<font color='#5555FF'><</font>sample_type,scalar_type<font color='#5555FF'>></font><font color='#5555FF'>&</font> a, any_trainer<font color='#5555FF'><</font>sample_type,scalar_type<font color='#5555FF'>></font><font color='#5555FF'>&</font> b <font face='Lucida Console'>)</font> <b>{</b> a.<font color='#BB00BB'>swap</font><font face='Lucida Console'>(</font>b<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>// ---------------------------------------------------------------------------------------- </font> <font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T, <font color='#0000FF'>typename</font> U, <font color='#0000FF'>typename</font> V<font color='#5555FF'>></font> T<font color='#5555FF'>&</font> <b><a name='any_cast'></a>any_cast</b><font face='Lucida Console'>(</font>any_trainer<font color='#5555FF'><</font>U,V<font color='#5555FF'>></font><font color='#5555FF'>&</font> a<font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>return</font> a.<font color='#0000FF'>template</font> cast_to<font color='#5555FF'><</font>T<font color='#5555FF'>></font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <b>}</b> <font color='#0000FF'>template</font> <font color='#5555FF'><</font><font color='#0000FF'>typename</font> T, <font color='#0000FF'>typename</font> U, <font color='#0000FF'>typename</font> V<font color='#5555FF'>></font> <font color='#0000FF'>const</font> T<font color='#5555FF'>&</font> <b><a name='any_cast'></a>any_cast</b><font face='Lucida Console'>(</font><font color='#0000FF'>const</font> any_trainer<font color='#5555FF'><</font>U,V<font color='#5555FF'>></font><font color='#5555FF'>&</font> a<font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'>return</font> a.<font color='#0000FF'>template</font> cast_to<font color='#5555FF'><</font>T<font color='#5555FF'>></font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>// ---------------------------------------------------------------------------------------- </font> <b>}</b> <font color='#0000FF'>#endif</font> <font color='#009900'>// DLIB_AnY_TRAINER_H_ </font> </pre></body></html>