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65<h1>circular_buffer.h</h1><a href="circular__buffer_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
66<a name="l00035"></a>00035 <span class="preprocessor">#ifndef CIRCULAR_BUFFER_H</span>
67<a name="l00036"></a>00036 <span class="preprocessor"></span><span class="preprocessor">#define CIRCULAR_BUFFER_H</span>
68<a name="l00037"></a>00037 <span class="preprocessor"></span>
69<a name="l00038"></a>00038 <span class="preprocessor">#include &lt;<a class="code" href="vec_8h.html" title="Templated Vector Class Definitions.">itpp/base/vec.h</a>&gt;</span>
70<a name="l00039"></a>00039 <span class="preprocessor">#include &lt;<a class="code" href="array_8h.html" title="Definition of Array class (container).">itpp/base/array.h</a>&gt;</span>
71<a name="l00040"></a>00040
72<a name="l00041"></a>00041
73<a name="l00042"></a>00042 <span class="keyword">namespace </span>itpp
74<a name="l00043"></a>00043 {
75<a name="l00044"></a>00044
76<a name="l00091"></a>00091 <span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;
77<a name="l00092"></a><a class="code" href="classitpp_1_1Circular__Buffer.html">00092</a> <span class="keyword">class </span><a class="code" href="classitpp_1_1Circular__Buffer.html" title="General circular buffer class.">Circular_Buffer</a>
78<a name="l00093"></a>00093 {
79<a name="l00094"></a>00094 <span class="keyword">public</span>:
80<a name="l00096"></a>00096   <a class="code" href="classitpp_1_1Circular__Buffer.html#facfe1f87533c5a3eeb07d409b058101" title="Default constructor.">Circular_Buffer</a>();
81<a name="l00097"></a>00097
82<a name="l00099"></a>00099   <a class="code" href="classitpp_1_1Circular__Buffer.html#facfe1f87533c5a3eeb07d409b058101" title="Default constructor.">Circular_Buffer</a>(<span class="keywordtype">int</span> n);
83<a name="l00100"></a>00100
84<a name="l00102"></a>00102   <a class="code" href="classitpp_1_1Circular__Buffer.html#facfe1f87533c5a3eeb07d409b058101" title="Default constructor.">Circular_Buffer</a>(<span class="keyword">const</span> <a class="code" href="classitpp_1_1Circular__Buffer.html" title="General circular buffer class.">Circular_Buffer&lt;T&gt;</a> &amp;s);
85<a name="l00103"></a>00103
86<a name="l00105"></a>00105   <span class="keyword">virtual</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#b20850719e0b2b50c89ab73891b3e07e" title="Default destructor.">~Circular_Buffer</a>();
87<a name="l00106"></a>00106
88<a name="l00108"></a>00108   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#2f0d27553c66c278fe8d35b6a1bfa758" title="Write the element in to the buffer.">put</a>(<span class="keyword">const</span> T&amp; in);
89<a name="l00109"></a>00109
90<a name="l00111"></a>00111   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#2f0d27553c66c278fe8d35b6a1bfa758" title="Write the element in to the buffer.">put</a>(<span class="keyword">const</span> <a class="code" href="classitpp_1_1Vec.html">Vec&lt;T&gt;</a>&amp; in);
91<a name="l00112"></a>00112
92<a name="l00114"></a>00114   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#2f0d27553c66c278fe8d35b6a1bfa758" title="Write the element in to the buffer.">put</a>(<span class="keyword">const</span> <a class="code" href="classitpp_1_1Array.html" title="General array class.">Array&lt;T&gt;</a>&amp; in);
93<a name="l00115"></a>00115
94<a name="l00117"></a>00117   <span class="keywordtype">void</span> <span class="keyword">get</span>(T&amp; out);
95<a name="l00118"></a>00118
96<a name="l00120"></a>00120   T <span class="keyword">get</span>();
97<a name="l00121"></a>00121
98<a name="l00123"></a>00123   <span class="keywordtype">void</span> <span class="keyword">get</span>(<a class="code" href="classitpp_1_1Vec.html">Vec&lt;T&gt;</a>&amp; out, <span class="keyword">const</span> <span class="keywordtype">int</span> N = -1);
99<a name="l00124"></a>00124
100<a name="l00126"></a>00126   <span class="keywordtype">void</span> <span class="keyword">get</span>(<a class="code" href="classitpp_1_1Array.html" title="General array class.">Array&lt;T&gt;</a>&amp; out, <span class="keyword">const</span> <span class="keywordtype">int</span> N = -1);
101<a name="l00127"></a>00127
102<a name="l00129"></a>00129   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">peek</a>(T&amp; out) <span class="keyword">const</span>;
103<a name="l00130"></a>00130
104<a name="l00132"></a>00132   T <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">peek</a>() <span class="keyword">const</span>;
105<a name="l00133"></a>00133
106<a name="l00135"></a>00135   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">peek</a>(<span class="keyword">const</span> <span class="keywordtype">int</span> index, T&amp; out) <span class="keyword">const</span>;
107<a name="l00136"></a>00136
108<a name="l00138"></a>00138   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">peek</a>(<a class="code" href="classitpp_1_1Vec.html">Vec&lt;T&gt;</a>&amp; out, <span class="keyword">const</span> <span class="keywordtype">int</span> N = -1) <span class="keyword">const</span>;
109<a name="l00139"></a>00139
110<a name="l00141"></a>00141   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">peek</a>(<span class="keyword">const</span> ivec&amp; index, <a class="code" href="classitpp_1_1Vec.html">Vec&lt;T&gt;</a>&amp; out) <span class="keyword">const</span>;
111<a name="l00142"></a>00142
112<a name="l00144"></a>00144   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">peek</a>(<a class="code" href="classitpp_1_1Array.html" title="General array class.">Array&lt;T&gt;</a>&amp; out, <span class="keyword">const</span> <span class="keywordtype">int</span> N = -1) <span class="keyword">const</span>;
113<a name="l00145"></a>00145
114<a name="l00147"></a>00147   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">peek</a>(<span class="keyword">const</span> ivec&amp; index, <a class="code" href="classitpp_1_1Array.html" title="General array class.">Array&lt;T&gt;</a>&amp; out) <span class="keyword">const</span>;
115<a name="l00148"></a>00148
116<a name="l00150"></a>00150   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#427c129a3322d3f30cce928046ab48ef" title="Peek at the latest element in the circular buffer, without removing it.">peek_reverse</a>(T&amp; out) <span class="keyword">const</span>;
117<a name="l00151"></a>00151
118<a name="l00153"></a>00153   T <a class="code" href="classitpp_1_1Circular__Buffer.html#427c129a3322d3f30cce928046ab48ef" title="Peek at the latest element in the circular buffer, without removing it.">peek_reverse</a>() <span class="keyword">const</span>;
119<a name="l00154"></a>00154
120<a name="l00156"></a>00156   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#427c129a3322d3f30cce928046ab48ef" title="Peek at the latest element in the circular buffer, without removing it.">peek_reverse</a>(<a class="code" href="classitpp_1_1Vec.html">Vec&lt;T&gt;</a>&amp; out, <span class="keyword">const</span> <span class="keywordtype">int</span> N = -1) <span class="keyword">const</span>;
121<a name="l00157"></a>00157
122<a name="l00159"></a>00159   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#427c129a3322d3f30cce928046ab48ef" title="Peek at the latest element in the circular buffer, without removing it.">peek_reverse</a>(<a class="code" href="classitpp_1_1Array.html" title="General array class.">Array&lt;T&gt;</a>&amp; out, <span class="keyword">const</span> <span class="keywordtype">int</span> N = -1) <span class="keyword">const</span>;
123<a name="l00160"></a>00160
124<a name="l00162"></a>00162   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#15da2e68939407a13dde647afcb56529" title="Empty the circular buffer.">clear</a>();
125<a name="l00163"></a>00163
126<a name="l00165"></a>00165   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#625975c59def123a1531949583d52393" title="Assignment operator.">operator=</a>(<span class="keyword">const</span> <a class="code" href="classitpp_1_1Circular__Buffer.html" title="General circular buffer class.">Circular_Buffer&lt;T&gt;</a> &amp;s);
127<a name="l00166"></a>00166
128<a name="l00168"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#0b6b10852c6f944ef07bd9252a973002">00168</a>   <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#0b6b10852c6f944ef07bd9252a973002" title="Returns the maximum number of data elements the circular buffer can store.">size</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _ndata; }
129<a name="l00169"></a>00169
130<a name="l00171"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#54d8aac5494015926458d97529a620c4">00171</a>   <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#54d8aac5494015926458d97529a620c4" title="Returns the number of data elements currently stored in the circular buffer.">nrof_elements</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _rw_dist; }
131<a name="l00172"></a>00172
132<a name="l00174"></a>00174   <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#71666739dc1f890cba5b973ff3f045b7" title="Resizing a Circular_Buffer&amp;lt;T&amp;gt;.">set_size</a>(<span class="keywordtype">int</span> n, <span class="keywordtype">bool</span> copy = <span class="keyword">false</span>);
133<a name="l00175"></a>00175
134<a name="l00176"></a>00176 <span class="keyword">private</span>:
135<a name="l00177"></a>00177
136<a name="l00178"></a>00178   <span class="keywordtype">int</span> _write;
137<a name="l00179"></a>00179   <span class="keywordtype">int</span> _read;
138<a name="l00180"></a>00180   <span class="keywordtype">int</span> _ndata;
139<a name="l00181"></a>00181   <span class="keywordtype">int</span> _rw_dist;
140<a name="l00182"></a>00182   T *_data;
141<a name="l00183"></a>00183
142<a name="l00184"></a>00184   <span class="keywordtype">void</span> alloc(<span class="keywordtype">int</span> n);
143<a name="l00185"></a>00185   <span class="keywordtype">void</span> free();
144<a name="l00186"></a>00186
145<a name="l00187"></a>00187 };
146<a name="l00188"></a>00188
147<a name="l00189"></a>00189 <span class="comment">// --------------------------- Implementation starts here ----------------------------------</span>
148<a name="l00190"></a>00190
149<a name="l00191"></a>00191 <span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;
150<a name="l00192"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#facfe1f87533c5a3eeb07d409b058101">00192</a> <a class="code" href="classitpp_1_1Circular__Buffer.html#facfe1f87533c5a3eeb07d409b058101" title="Default constructor.">Circular_Buffer&lt;T&gt;::Circular_Buffer</a>()
151<a name="l00193"></a>00193 {
152<a name="l00194"></a>00194   _data    = 0;
153<a name="l00195"></a>00195   _ndata   = 0;
154<a name="l00196"></a>00196   _rw_dist = 0;
155<a name="l00197"></a>00197   _read    = 0;
156<a name="l00198"></a>00198   _write   = 0;
157<a name="l00199"></a>00199 }
158<a name="l00200"></a>00200
159<a name="l00201"></a>00201 <span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;
160<a name="l00202"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#b654a46913bea47e210e263737bf104d">00202</a> <a class="code" href="classitpp_1_1Circular__Buffer.html#facfe1f87533c5a3eeb07d409b058101" title="Default constructor.">Circular_Buffer&lt;T&gt;::Circular_Buffer</a>(<span class="keywordtype">int</span> n)
161<a name="l00203"></a>00203 {
162<a name="l00204"></a>00204   alloc(n);
163<a name="l00205"></a>00205   _read    = 0;
164<a name="l00206"></a>00206   _write   = 0;
165<a name="l00207"></a>00207   _rw_dist = 0;
166<a name="l00208"></a>00208 }
167<a name="l00209"></a>00209
168<a name="l00210"></a>00210 <span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;
169<a name="l00211"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#64a7e0608208d189423d2e2f68351b5e">00211</a> <a class="code" href="classitpp_1_1Circular__Buffer.html#facfe1f87533c5a3eeb07d409b058101" title="Default constructor.">Circular_Buffer&lt;T&gt;::Circular_Buffer</a>(<span class="keyword">const</span> <a class="code" href="classitpp_1_1Circular__Buffer.html" title="General circular buffer class.">Circular_Buffer&lt;T&gt;</a> &amp;cb)
170<a name="l00212"></a>00212 {
171<a name="l00213"></a>00213   _data    = NULL;
172<a name="l00214"></a>00214   _ndata   = 0;
173<a name="l00215"></a>00215   _read    = cb.<a class="code" href="classitpp_1_1Circular__Buffer.html#232185b0ea445ec74037e0d8dc5bd2c1">_read</a>;
174<a name="l00216"></a>00216   _write   = cb.<a class="code" href="classitpp_1_1Circular__Buffer.html#6d88fb1ce4d845a34618627df4008333">_write</a>;
175<a name="l00217"></a>00217   _rw_dist = cb.<a class="code" href="classitpp_1_1Circular__Buffer.html#0866c8f3b8896b74c3e25caa542ffacd">_rw_dist</a>;
176<a name="l00218"></a>00218
177<a name="l00219"></a>00219   alloc(cb.<a class="code" href="classitpp_1_1Circular__Buffer.html#8f8e598cd1ff98d7ae0141495fef14c4">_ndata</a>);
178<a name="l00220"></a>00220   <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; cb.<a class="code" href="classitpp_1_1Circular__Buffer.html#8f8e598cd1ff98d7ae0141495fef14c4">_ndata</a>; i++) { _data[i] = cb.<a class="code" href="classitpp_1_1Circular__Buffer.html#2a7411750051641aa717feb3e16d513f">_data</a>[i]; }
179<a name="l00221"></a>00221 }
180<a name="l00222"></a>00222
181<a name="l00223"></a>00223 <span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;
182<a name="l00224"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#b20850719e0b2b50c89ab73891b3e07e">00224</a> <a class="code" href="classitpp_1_1Circular__Buffer.html#b20850719e0b2b50c89ab73891b3e07e" title="Default destructor.">Circular_Buffer&lt;T&gt;::~Circular_Buffer</a>()
183<a name="l00225"></a>00225 {
184<a name="l00226"></a>00226   free();
185<a name="l00227"></a>00227 }
186<a name="l00228"></a>00228
187<a name="l00229"></a>00229 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
188<a name="l00230"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#e780e614fc4add0df984152c851b7e82">00230</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#e4e7aa878c4a3aacf2cb5b942f5be939" title="Get the oldest element in the circular buffer.">Circular_Buffer&lt;T&gt;::get</a>(T&amp; out)
189<a name="l00231"></a>00231 {
190<a name="l00232"></a>00232   <a class="code" href="group__errorhandlingfunc.html#gb319550e696ee9d824d23c2a176bc3a6" title="Abort if t is not true and NDEBUG is not defined.">it_assert_debug</a>(_rw_dist &gt; 0, <span class="stringliteral">"Buffer empty. No data left to read from the buffer."</span>);
191<a name="l00233"></a>00233   out = _data[_read];
192<a name="l00234"></a>00234   _read++;
193<a name="l00235"></a>00235   _rw_dist--;
194<a name="l00236"></a>00236
195<a name="l00237"></a>00237   <span class="keywordflow">if</span> (_read == _ndata) { _read = 0; }
196<a name="l00238"></a>00238 }
197<a name="l00239"></a>00239
198<a name="l00240"></a>00240 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
199<a name="l00241"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#e4e7aa878c4a3aacf2cb5b942f5be939">00241</a> T <a class="code" href="classitpp_1_1Circular__Buffer.html#e4e7aa878c4a3aacf2cb5b942f5be939" title="Get the oldest element in the circular buffer.">Circular_Buffer&lt;T&gt;::get</a>()
200<a name="l00242"></a>00242 {
201<a name="l00243"></a>00243   T out;
202<a name="l00244"></a>00244
203<a name="l00245"></a>00245   <span class="keyword">get</span>(out);
204<a name="l00246"></a>00246   <span class="keywordflow">return</span> out;
205<a name="l00247"></a>00247 }
206<a name="l00248"></a>00248
207<a name="l00249"></a>00249 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
208<a name="l00250"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#2503913b027197bb6c3c3023b728862f">00250</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#e4e7aa878c4a3aacf2cb5b942f5be939" title="Get the oldest element in the circular buffer.">Circular_Buffer&lt;T&gt;::get</a>(<a class="code" href="classitpp_1_1Vec.html">Vec&lt;T&gt;</a>&amp; out, <span class="keyword">const</span> <span class="keywordtype">int</span> N)
209<a name="l00251"></a>00251 {
210<a name="l00252"></a>00252   <span class="keywordtype">int</span> N_out;
211<a name="l00253"></a>00253
212<a name="l00254"></a>00254   <span class="keywordflow">if</span> (N == -1)
213<a name="l00255"></a>00255     N_out = _rw_dist;
214<a name="l00256"></a>00256   <span class="keywordflow">else</span>
215<a name="l00257"></a>00257     N_out = N;
216<a name="l00258"></a>00258
217<a name="l00259"></a>00259   out.<a class="code" href="classitpp_1_1Vec.html#a4b02b7819e540bb3853c15e6480ada6" title="Set length of vector. if copy = true then keeping the old values.">set_size</a>(N_out);
218<a name="l00260"></a>00260
219<a name="l00261"></a>00261   <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0;i &lt; N_out;i++) {
220<a name="l00262"></a>00262     <a class="code" href="group__errorhandlingfunc.html#gb319550e696ee9d824d23c2a176bc3a6" title="Abort if t is not true and NDEBUG is not defined.">it_assert_debug</a>(_rw_dist &gt; 0, <span class="stringliteral">"Buffer empty. No data left to read from the buffer."</span>);
221<a name="l00263"></a>00263     out(i) = _data[_read];
222<a name="l00264"></a>00264     _read++;
223<a name="l00265"></a>00265     _rw_dist--;
224<a name="l00266"></a>00266
225<a name="l00267"></a>00267     <span class="keywordflow">if</span> (_read == _ndata)
226<a name="l00268"></a>00268       _read = 0;
227<a name="l00269"></a>00269   }
228<a name="l00270"></a>00270 }
229<a name="l00271"></a>00271
230<a name="l00272"></a>00272 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
231<a name="l00273"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#87dac11564185e418ae7650b5c503123">00273</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#e4e7aa878c4a3aacf2cb5b942f5be939" title="Get the oldest element in the circular buffer.">Circular_Buffer&lt;T&gt;::get</a>(<a class="code" href="classitpp_1_1Array.html" title="General array class.">Array&lt;T&gt;</a>&amp; out, <span class="keyword">const</span> <span class="keywordtype">int</span> N)
232<a name="l00274"></a>00274 {
233<a name="l00275"></a>00275   <span class="keywordtype">int</span> N_out;
234<a name="l00276"></a>00276
235<a name="l00277"></a>00277   <span class="keywordflow">if</span> (N == -1)
236<a name="l00278"></a>00278     N_out = _rw_dist;
237<a name="l00279"></a>00279   <span class="keywordflow">else</span>
238<a name="l00280"></a>00280     N_out = N;
239<a name="l00281"></a>00281
240<a name="l00282"></a>00282   out.<a class="code" href="classitpp_1_1Array.html#dbf76c71f29014a4d53f254e83f3ff1c" title="Resizing an Array&amp;lt;T&amp;gt;.">set_size</a>(N_out);
241<a name="l00283"></a>00283
242<a name="l00284"></a>00284   <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0;i &lt; N_out;i++) {
243<a name="l00285"></a>00285     <a class="code" href="group__errorhandlingfunc.html#gb319550e696ee9d824d23c2a176bc3a6" title="Abort if t is not true and NDEBUG is not defined.">it_assert_debug</a>(_rw_dist &gt; 0, <span class="stringliteral">"Buffer empty. No data left to read from the buffer."</span>);
244<a name="l00286"></a>00286     out(i) = _data[_read];
245<a name="l00287"></a>00287     _read++;
246<a name="l00288"></a>00288     _rw_dist--;
247<a name="l00289"></a>00289
248<a name="l00290"></a>00290     <span class="keywordflow">if</span> (_read == _ndata)
249<a name="l00291"></a>00291       _read = 0;
250<a name="l00292"></a>00292   }
251<a name="l00293"></a>00293 }
252<a name="l00294"></a>00294
253<a name="l00295"></a>00295 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
254<a name="l00296"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#2f5fe49bcdfb038831eace4f4466fc9b">00296</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">Circular_Buffer&lt;T&gt;::peek</a>(T&amp; out)<span class="keyword"> const</span>
255<a name="l00297"></a>00297 <span class="keyword"></span>{
256<a name="l00298"></a>00298   <a class="code" href="group__errorhandlingfunc.html#gb319550e696ee9d824d23c2a176bc3a6" title="Abort if t is not true and NDEBUG is not defined.">it_assert_debug</a>(_rw_dist &gt; 0, <span class="stringliteral">"Attempted to peek at an empty buffer."</span>);
257<a name="l00299"></a>00299   out = _data[_read];
258<a name="l00300"></a>00300 }
259<a name="l00301"></a>00301
260<a name="l00302"></a>00302 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
261<a name="l00303"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549">00303</a> T <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">Circular_Buffer&lt;T&gt;::peek</a>()<span class="keyword"> const</span>
262<a name="l00304"></a>00304 <span class="keyword"></span>{
263<a name="l00305"></a>00305   T out;
264<a name="l00306"></a>00306
265<a name="l00307"></a>00307   <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">peek</a>(out);
266<a name="l00308"></a>00308   <span class="keywordflow">return</span> out;
267<a name="l00309"></a>00309 }
268<a name="l00310"></a>00310
269<a name="l00311"></a>00311 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
270<a name="l00312"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#13bca849dbeb71d243eeede5f157a227">00312</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">Circular_Buffer&lt;T&gt;::peek</a>(<span class="keyword">const</span> <span class="keywordtype">int</span> index, T&amp; out)<span class="keyword"> const</span>
271<a name="l00313"></a>00313 <span class="keyword"></span>{
272<a name="l00314"></a>00314   <a class="code" href="group__errorhandlingfunc.html#gb319550e696ee9d824d23c2a176bc3a6" title="Abort if t is not true and NDEBUG is not defined.">it_assert_debug</a>(_rw_dist &gt; index &amp;&amp; index &gt;= 0, <span class="stringliteral">"The index exceeds the number of elements stored in the buffer."</span>);
273<a name="l00315"></a>00315   out = _data[(_read+index)%_ndata];
274<a name="l00316"></a>00316 }
275<a name="l00317"></a>00317
276<a name="l00318"></a>00318 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
277<a name="l00319"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#4a1698d3de757f7157c654bd28f7222c">00319</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">Circular_Buffer&lt;T&gt;::peek</a>(<a class="code" href="classitpp_1_1Vec.html">Vec&lt;T&gt;</a>&amp; out, <span class="keyword">const</span> <span class="keywordtype">int</span> N)<span class="keyword"> const</span>
278<a name="l00320"></a>00320 <span class="keyword"></span>{
279<a name="l00321"></a>00321   <span class="keywordtype">int</span> N_out;
280<a name="l00322"></a>00322   <span class="keywordtype">int</span> read_tmp = _read;
281<a name="l00323"></a>00323
282<a name="l00324"></a>00324   <span class="keywordflow">if</span> (N == -1)
283<a name="l00325"></a>00325     N_out = _rw_dist;
284<a name="l00326"></a>00326   <span class="keywordflow">else</span>
285<a name="l00327"></a>00327     N_out = N;
286<a name="l00328"></a>00328
287<a name="l00329"></a>00329   <a class="code" href="group__errorhandlingfunc.html#gb319550e696ee9d824d23c2a176bc3a6" title="Abort if t is not true and NDEBUG is not defined.">it_assert_debug</a>(_rw_dist &gt;= N_out, <span class="stringliteral">"Attempted to peek at more elements than there are stored in the buffer."</span>);
288<a name="l00330"></a>00330   out.<a class="code" href="classitpp_1_1Vec.html#a4b02b7819e540bb3853c15e6480ada6" title="Set length of vector. if copy = true then keeping the old values.">set_size</a>(N_out);
289<a name="l00331"></a>00331
290<a name="l00332"></a>00332   <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0;i &lt; N_out;i++) {
291<a name="l00333"></a>00333     out(i) = _data[read_tmp];
292<a name="l00334"></a>00334     read_tmp++;
293<a name="l00335"></a>00335     <span class="keywordflow">if</span> (read_tmp == _ndata)
294<a name="l00336"></a>00336       read_tmp = 0;
295<a name="l00337"></a>00337   }
296<a name="l00338"></a>00338 }
297<a name="l00339"></a>00339
298<a name="l00340"></a>00340 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
299<a name="l00341"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#ca93e92932bf160f6bbeea39a98defda">00341</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">Circular_Buffer&lt;T&gt;::peek</a>(<span class="keyword">const</span> ivec&amp; index, <a class="code" href="classitpp_1_1Vec.html">Vec&lt;T&gt;</a>&amp; out)<span class="keyword"> const</span>
300<a name="l00342"></a>00342 <span class="keyword"></span>{
301<a name="l00343"></a>00343   out.<a class="code" href="classitpp_1_1Vec.html#a4b02b7819e540bb3853c15e6480ada6" title="Set length of vector. if copy = true then keeping the old values.">set_size</a>(index.size());
302<a name="l00344"></a>00344
303<a name="l00345"></a>00345   <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0;i &lt; index.size();i++) {
304<a name="l00346"></a>00346     <a class="code" href="group__errorhandlingfunc.html#gb319550e696ee9d824d23c2a176bc3a6" title="Abort if t is not true and NDEBUG is not defined.">it_assert_debug</a>(_rw_dist &gt;= index(i) &amp;&amp; index(i) &gt;= 0, <span class="stringliteral">"Attempted to peek at an element, whose index exceeds the number of buffered elements."</span>);
305<a name="l00347"></a>00347     out(i) = _data[(_read+index(i))%_ndata];
306<a name="l00348"></a>00348   }
307<a name="l00349"></a>00349 }
308<a name="l00350"></a>00350
309<a name="l00351"></a>00351 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
310<a name="l00352"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#685da19384f131995ef4841b3f11587a">00352</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">Circular_Buffer&lt;T&gt;::peek</a>(<a class="code" href="classitpp_1_1Array.html" title="General array class.">Array&lt;T&gt;</a>&amp; out, <span class="keyword">const</span> <span class="keywordtype">int</span> N)<span class="keyword"> const</span>
311<a name="l00353"></a>00353 <span class="keyword"></span>{
312<a name="l00354"></a>00354   <span class="keywordtype">int</span> N_out;
313<a name="l00355"></a>00355   <span class="keywordtype">int</span> read_tmp = _read;
314<a name="l00356"></a>00356
315<a name="l00357"></a>00357   <span class="keywordflow">if</span> (N == -1)
316<a name="l00358"></a>00358     N_out = _rw_dist;
317<a name="l00359"></a>00359   <span class="keywordflow">else</span>
318<a name="l00360"></a>00360     N_out = N;
319<a name="l00361"></a>00361
320<a name="l00362"></a>00362   <a class="code" href="group__errorhandlingfunc.html#gb319550e696ee9d824d23c2a176bc3a6" title="Abort if t is not true and NDEBUG is not defined.">it_assert_debug</a>(_rw_dist &gt;= N_out, <span class="stringliteral">"Attempted to peek at more elements than there are stored in the buffer."</span>);
321<a name="l00363"></a>00363   out.<a class="code" href="classitpp_1_1Array.html#dbf76c71f29014a4d53f254e83f3ff1c" title="Resizing an Array&amp;lt;T&amp;gt;.">set_size</a>(N_out);
322<a name="l00364"></a>00364
323<a name="l00365"></a>00365   <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0;i &lt; N_out;i++) {
324<a name="l00366"></a>00366     out(i) = _data[read_tmp];
325<a name="l00367"></a>00367     read_tmp++;
326<a name="l00368"></a>00368     <span class="keywordflow">if</span> (read_tmp == _ndata)
327<a name="l00369"></a>00369       read_tmp = 0;
328<a name="l00370"></a>00370   }
329<a name="l00371"></a>00371 }
330<a name="l00372"></a>00372
331<a name="l00373"></a>00373 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
332<a name="l00374"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#0628353cd43b1fdb3e5a52fda3f5ba8d">00374</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#d20356855fe0667656dbf25221722549" title="Peek at the oldest element in the circular buffer, without removing it.">Circular_Buffer&lt;T&gt;::peek</a>(<span class="keyword">const</span> ivec&amp; index, <a class="code" href="classitpp_1_1Array.html" title="General array class.">Array&lt;T&gt;</a>&amp; out)<span class="keyword"> const</span>
333<a name="l00375"></a>00375 <span class="keyword"></span>{
334<a name="l00376"></a>00376   out.<a class="code" href="classitpp_1_1Array.html#dbf76c71f29014a4d53f254e83f3ff1c" title="Resizing an Array&amp;lt;T&amp;gt;.">set_size</a>(index.size());
335<a name="l00377"></a>00377
336<a name="l00378"></a>00378   <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0;i &lt; index.size();i++) {
337<a name="l00379"></a>00379     <a class="code" href="group__errorhandlingfunc.html#gb319550e696ee9d824d23c2a176bc3a6" title="Abort if t is not true and NDEBUG is not defined.">it_assert_debug</a>(_rw_dist &gt;= index(i) &amp;&amp; index(i) &gt;= 0, <span class="stringliteral">"Attempted to peek at an element, whose index exceeds the number of buffered elements."</span>);
338<a name="l00380"></a>00380     out(i) = _data[(_read+index(i))%_ndata];
339<a name="l00381"></a>00381   }
340<a name="l00382"></a>00382 }
341<a name="l00383"></a>00383
342<a name="l00384"></a>00384 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
343<a name="l00385"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#9ff08a09d34e31c7c5b8ead37aa9bf77">00385</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#427c129a3322d3f30cce928046ab48ef" title="Peek at the latest element in the circular buffer, without removing it.">Circular_Buffer&lt;T&gt;::peek_reverse</a>(T&amp; out)<span class="keyword"> const</span>
344<a name="l00386"></a>00386 <span class="keyword"></span>{
345<a name="l00387"></a>00387   <span class="keywordtype">int</span> read_tmp;
346<a name="l00388"></a>00388
347<a name="l00389"></a>00389   <a class="code" href="group__errorhandlingfunc.html#gb319550e696ee9d824d23c2a176bc3a6" title="Abort if t is not true and NDEBUG is not defined.">it_assert_debug</a>(_rw_dist &gt; 0, <span class="stringliteral">"Attempted to peek at an empty buffer."</span>);
348<a name="l00390"></a>00390
349<a name="l00391"></a>00391   <span class="keywordflow">if</span> (_write &gt; 0)
350<a name="l00392"></a>00392     read_tmp = _write - 1;
351<a name="l00393"></a>00393   <span class="keywordflow">else</span>
352<a name="l00394"></a>00394     read_tmp = _ndata - 1;
353<a name="l00395"></a>00395
354<a name="l00396"></a>00396   out = _data[read_tmp];
355<a name="l00397"></a>00397 }
356<a name="l00398"></a>00398
357<a name="l00399"></a>00399 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
358<a name="l00400"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#427c129a3322d3f30cce928046ab48ef">00400</a> T <a class="code" href="classitpp_1_1Circular__Buffer.html#427c129a3322d3f30cce928046ab48ef" title="Peek at the latest element in the circular buffer, without removing it.">Circular_Buffer&lt;T&gt;::peek_reverse</a>()<span class="keyword"> const</span>
359<a name="l00401"></a>00401 <span class="keyword"></span>{
360<a name="l00402"></a>00402   T out;
361<a name="l00403"></a>00403
362<a name="l00404"></a>00404   <a class="code" href="classitpp_1_1Circular__Buffer.html#427c129a3322d3f30cce928046ab48ef" title="Peek at the latest element in the circular buffer, without removing it.">peek_reverse</a>(out);
363<a name="l00405"></a>00405   <span class="keywordflow">return</span> out;
364<a name="l00406"></a>00406 }
365<a name="l00407"></a>00407
366<a name="l00408"></a>00408 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
367<a name="l00409"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#5d5e04e774f9389743c9c05d24929107">00409</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#427c129a3322d3f30cce928046ab48ef" title="Peek at the latest element in the circular buffer, without removing it.">Circular_Buffer&lt;T&gt;::peek_reverse</a>(<a class="code" href="classitpp_1_1Vec.html">Vec&lt;T&gt;</a>&amp; out, <span class="keyword">const</span> <span class="keywordtype">int</span> N)<span class="keyword"> const</span>
368<a name="l00410"></a>00410 <span class="keyword"></span>{
369<a name="l00411"></a>00411   <span class="keywordtype">int</span> N_out;
370<a name="l00412"></a>00412   <span class="keywordtype">int</span> read_tmp;
371<a name="l00413"></a>00413
372<a name="l00414"></a>00414   <span class="keywordflow">if</span> (N == -1)
373<a name="l00415"></a>00415     N_out = _rw_dist;
374<a name="l00416"></a>00416   <span class="keywordflow">else</span>
375<a name="l00417"></a>00417     N_out = N;
376<a name="l00418"></a>00418
377<a name="l00419"></a>00419   <a class="code" href="group__errorhandlingfunc.html#gb319550e696ee9d824d23c2a176bc3a6" title="Abort if t is not true and NDEBUG is not defined.">it_assert_debug</a>(_rw_dist &gt;= N_out, <span class="stringliteral">"Attempted to peek at more elements than there are stored in the buffer."</span>);
378<a name="l00420"></a>00420   out.<a class="code" href="classitpp_1_1Vec.html#a4b02b7819e540bb3853c15e6480ada6" title="Set length of vector. if copy = true then keeping the old values.">set_size</a>(N_out);
379<a name="l00421"></a>00421
380<a name="l00422"></a>00422   <span class="keywordflow">if</span> (_write &gt; 0)
381<a name="l00423"></a>00423     read_tmp = _write - 1;
382<a name="l00424"></a>00424   <span class="keywordflow">else</span>
383<a name="l00425"></a>00425     read_tmp = _ndata - 1;
384<a name="l00426"></a>00426
385<a name="l00427"></a>00427   <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0;i &lt; N_out;i++) {
386<a name="l00428"></a>00428     out(i) = _data[read_tmp];
387<a name="l00429"></a>00429     read_tmp--;
388<a name="l00430"></a>00430     <span class="keywordflow">if</span> (read_tmp &lt; 0)
389<a name="l00431"></a>00431       read_tmp = _ndata - 1;
390<a name="l00432"></a>00432   }
391<a name="l00433"></a>00433 }
392<a name="l00434"></a>00434
393<a name="l00435"></a>00435 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
394<a name="l00436"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#2903e9dac4afbb8d6a2fcbd299c1e3cf">00436</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#427c129a3322d3f30cce928046ab48ef" title="Peek at the latest element in the circular buffer, without removing it.">Circular_Buffer&lt;T&gt;::peek_reverse</a>(<a class="code" href="classitpp_1_1Array.html" title="General array class.">Array&lt;T&gt;</a>&amp; out, <span class="keyword">const</span> <span class="keywordtype">int</span> N)<span class="keyword"> const</span>
395<a name="l00437"></a>00437 <span class="keyword"></span>{
396<a name="l00438"></a>00438   <span class="keywordtype">int</span> N_out;
397<a name="l00439"></a>00439   <span class="keywordtype">int</span> read_tmp;
398<a name="l00440"></a>00440
399<a name="l00441"></a>00441   <span class="keywordflow">if</span> (N == -1)
400<a name="l00442"></a>00442     N_out = _rw_dist;
401<a name="l00443"></a>00443   <span class="keywordflow">else</span>
402<a name="l00444"></a>00444     N_out = N;
403<a name="l00445"></a>00445
404<a name="l00446"></a>00446   <a class="code" href="group__errorhandlingfunc.html#gb319550e696ee9d824d23c2a176bc3a6" title="Abort if t is not true and NDEBUG is not defined.">it_assert_debug</a>(_rw_dist &gt;= N_out, <span class="stringliteral">"Attempted to peek at more elements than there are stored in the buffer."</span>);
405<a name="l00447"></a>00447   out.<a class="code" href="classitpp_1_1Array.html#dbf76c71f29014a4d53f254e83f3ff1c" title="Resizing an Array&amp;lt;T&amp;gt;.">set_size</a>(N_out);
406<a name="l00448"></a>00448
407<a name="l00449"></a>00449   <span class="keywordflow">if</span> (_write &gt; 0)
408<a name="l00450"></a>00450     read_tmp = _write - 1;
409<a name="l00451"></a>00451   <span class="keywordflow">else</span>
410<a name="l00452"></a>00452     read_tmp = _ndata - 1;
411<a name="l00453"></a>00453
412<a name="l00454"></a>00454   <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0;i &lt; N_out;i++) {
413<a name="l00455"></a>00455     out(i) = _data[read_tmp];
414<a name="l00456"></a>00456     read_tmp--;
415<a name="l00457"></a>00457     <span class="keywordflow">if</span> (read_tmp &lt; 0)
416<a name="l00458"></a>00458       read_tmp = _ndata - 1;
417<a name="l00459"></a>00459   }
418<a name="l00460"></a>00460 }
419<a name="l00461"></a>00461
420<a name="l00462"></a>00462 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
421<a name="l00463"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#2f0d27553c66c278fe8d35b6a1bfa758">00463</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#2f0d27553c66c278fe8d35b6a1bfa758" title="Write the element in to the buffer.">Circular_Buffer&lt;T&gt;::put</a>(<span class="keyword">const</span> T&amp; in)
422<a name="l00464"></a>00464 {
423<a name="l00465"></a>00465   <span class="comment">//Remove the oldest element of the buffer if the buffer is full</span>
424<a name="l00466"></a>00466   <span class="keywordflow">if</span> (_rw_dist &gt;= _ndata) {
425<a name="l00467"></a>00467     T dummy;
426<a name="l00468"></a>00468     <span class="keyword">get</span>(dummy);
427<a name="l00469"></a>00469   }
428<a name="l00470"></a>00470
429<a name="l00471"></a>00471   <span class="comment">//Write data to the buffer and move the pointer to the next buffer slot</span>
430<a name="l00472"></a>00472   _data[_write] = in;
431<a name="l00473"></a>00473   _write++;
432<a name="l00474"></a>00474   _rw_dist++;
433<a name="l00475"></a>00475
434<a name="l00476"></a>00476   <span class="comment">//Check if the pointer in the circular buffer should go back to zero</span>
435<a name="l00477"></a>00477   <span class="keywordflow">if</span> (_write &gt;= _ndata)
436<a name="l00478"></a>00478     _write = 0;
437<a name="l00479"></a>00479
438<a name="l00480"></a>00480 }
439<a name="l00481"></a>00481
440<a name="l00482"></a>00482 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
441<a name="l00483"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#9ea0ad44cc98912ae6c98fa0ee64c2d4">00483</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#2f0d27553c66c278fe8d35b6a1bfa758" title="Write the element in to the buffer.">Circular_Buffer&lt;T&gt;::put</a>(<span class="keyword">const</span> <a class="code" href="classitpp_1_1Vec.html">Vec&lt;T&gt;</a>&amp; in)
442<a name="l00484"></a>00484 {
443<a name="l00485"></a>00485   <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0;i &lt; in.<a class="code" href="classitpp_1_1Vec.html#a906c893cd6184a774e4da8a47217d6a" title="The size of the vector.">size</a>();i++) {
444<a name="l00486"></a>00486     <span class="comment">//Remove the oldest element of the buffer if the buffer is full</span>
445<a name="l00487"></a>00487     <span class="keywordflow">if</span> (_rw_dist &gt;= _ndata) {
446<a name="l00488"></a>00488       T dummy;
447<a name="l00489"></a>00489       <span class="keyword">get</span>(dummy);
448<a name="l00490"></a>00490     }
449<a name="l00491"></a>00491
450<a name="l00492"></a>00492     <span class="comment">//Write data to the buffer and move the pointer to the next buffer slot</span>
451<a name="l00493"></a>00493     _data[_write] = in(i);
452<a name="l00494"></a>00494     _write++;
453<a name="l00495"></a>00495     _rw_dist++;
454<a name="l00496"></a>00496
455<a name="l00497"></a>00497     <span class="comment">//Check if the pointer in the circular buffer should go back to zero</span>
456<a name="l00498"></a>00498     <span class="keywordflow">if</span> (_write &gt;= _ndata)
457<a name="l00499"></a>00499       _write = 0;
458<a name="l00500"></a>00500   }
459<a name="l00501"></a>00501
460<a name="l00502"></a>00502 }
461<a name="l00503"></a>00503
462<a name="l00504"></a>00504 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
463<a name="l00505"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#9197d0b15e58119f445fc10a95f45e54">00505</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#2f0d27553c66c278fe8d35b6a1bfa758" title="Write the element in to the buffer.">Circular_Buffer&lt;T&gt;::put</a>(<span class="keyword">const</span> <a class="code" href="classitpp_1_1Array.html" title="General array class.">Array&lt;T&gt;</a>&amp; in)
464<a name="l00506"></a>00506 {
465<a name="l00507"></a>00507   <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0;i &lt; in.<a class="code" href="classitpp_1_1Array.html#ce6bb3089de6f3ff86806d78f35505a4" title="Returns the number of data elements in the array object.">size</a>();i++) {
466<a name="l00508"></a>00508     <span class="comment">//Remove the oldest element of the buffer if the buffer is full</span>
467<a name="l00509"></a>00509     <span class="keywordflow">if</span> (_rw_dist &gt;= _ndata) {
468<a name="l00510"></a>00510       T dummy;
469<a name="l00511"></a>00511       <span class="keyword">get</span>(dummy);
470<a name="l00512"></a>00512     }
471<a name="l00513"></a>00513
472<a name="l00514"></a>00514     <span class="comment">//Write data to the buffer and move the pointer to the next buffer slot</span>
473<a name="l00515"></a>00515     _data[_write] = in(i);
474<a name="l00516"></a>00516     _write++;
475<a name="l00517"></a>00517     _rw_dist++;
476<a name="l00518"></a>00518
477<a name="l00519"></a>00519     <span class="comment">//Check if the pointer in the circular buffer should go back to zero</span>
478<a name="l00520"></a>00520     <span class="keywordflow">if</span> (_write &gt;= _ndata)
479<a name="l00521"></a>00521       _write = 0;
480<a name="l00522"></a>00522   }
481<a name="l00523"></a>00523 }
482<a name="l00524"></a>00524
483<a name="l00525"></a>00525 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
484<a name="l00526"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#15da2e68939407a13dde647afcb56529">00526</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#15da2e68939407a13dde647afcb56529" title="Empty the circular buffer.">Circular_Buffer&lt;T&gt;::clear</a>()
485<a name="l00527"></a>00527 {
486<a name="l00528"></a>00528   _write   = 0;
487<a name="l00529"></a>00529   _read    = 0;
488<a name="l00530"></a>00530   _rw_dist = 0;
489<a name="l00531"></a>00531 }
490<a name="l00532"></a>00532
491<a name="l00533"></a>00533 <span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;
492<a name="l00534"></a>00534 <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html" title="General circular buffer class.">Circular_Buffer&lt;T&gt;::alloc</a>(<span class="keywordtype">int</span> n)
493<a name="l00535"></a>00535 {
494<a name="l00536"></a>00536   <span class="keywordflow">if</span> (n == 0) {
495<a name="l00537"></a>00537     _ndata = 0;
496<a name="l00538"></a>00538     _data  = NULL;
497<a name="l00539"></a>00539   }
498<a name="l00540"></a>00540   <span class="keywordflow">else</span> <span class="keywordflow">if</span> (n &gt; 0) {
499<a name="l00541"></a>00541     _ndata = n;
500<a name="l00542"></a>00542     _data = <span class="keyword">new</span> T[_ndata];
501<a name="l00543"></a>00543     <a class="code" href="group__errorhandlingfunc.html#gd5c34b291e5018534fd2344486e2b5a1" title="Abort if t is not true.">it_assert</a>(_data != 0, <span class="stringliteral">"Out of memory in Circular_Buffer::alloc"</span>);
502<a name="l00544"></a>00544   }
503<a name="l00545"></a>00545   <span class="keywordflow">else</span> {
504<a name="l00546"></a>00546     <a class="code" href="group__errorhandlingfunc.html#g22d38e98332f9edff88cc501463eedce" title="Abort unconditionally.">it_error</a>(<span class="stringliteral">"Circular_Buffer&lt;T&gt;::alloc(int n): n must be positive"</span>);
505<a name="l00547"></a>00547   }
506<a name="l00548"></a>00548 }
507<a name="l00549"></a>00549
508<a name="l00550"></a>00550 <span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;
509<a name="l00551"></a>00551 <span class="keywordtype">void</span> Circular_Buffer&lt;T&gt;::free()
510<a name="l00552"></a>00552 {
511<a name="l00553"></a>00553   <span class="keyword">delete</span> [] _data;
512<a name="l00554"></a>00554
513<a name="l00555"></a>00555   _data    = NULL;
514<a name="l00556"></a>00556   _ndata   = 0;
515<a name="l00557"></a>00557   _write   = 0;
516<a name="l00558"></a>00558   _read    = 0;
517<a name="l00559"></a>00559   _rw_dist = 0;
518<a name="l00560"></a>00560 }
519<a name="l00561"></a>00561
520<a name="l00562"></a>00562 <span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;
521<a name="l00563"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#625975c59def123a1531949583d52393">00563</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#625975c59def123a1531949583d52393" title="Assignment operator.">Circular_Buffer&lt;T&gt;::operator=</a>(<span class="keyword">const</span> <a class="code" href="classitpp_1_1Circular__Buffer.html" title="General circular buffer class.">Circular_Buffer&lt;T&gt;</a> &amp;s)
522<a name="l00564"></a>00564 {
523<a name="l00565"></a>00565   <a class="code" href="classitpp_1_1Circular__Buffer.html#71666739dc1f890cba5b973ff3f045b7" title="Resizing a Circular_Buffer&amp;lt;T&amp;gt;.">set_size</a>(s.<a class="code" href="classitpp_1_1Circular__Buffer.html#8f8e598cd1ff98d7ae0141495fef14c4">_ndata</a>);
524<a name="l00566"></a>00566   <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; _ndata; i++)
525<a name="l00567"></a>00567     _data[i] = s.<a class="code" href="classitpp_1_1Circular__Buffer.html#2a7411750051641aa717feb3e16d513f">_data</a>[i];
526<a name="l00568"></a>00568   _read = s.<a class="code" href="classitpp_1_1Circular__Buffer.html#232185b0ea445ec74037e0d8dc5bd2c1">_read</a>;
527<a name="l00569"></a>00569   _write = s.<a class="code" href="classitpp_1_1Circular__Buffer.html#6d88fb1ce4d845a34618627df4008333">_write</a>;
528<a name="l00570"></a>00570   _rw_dist = _write - _read;
529<a name="l00571"></a>00571 }
530<a name="l00572"></a>00572
531<a name="l00573"></a>00573 <span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;
532<a name="l00574"></a><a class="code" href="classitpp_1_1Circular__Buffer.html#71666739dc1f890cba5b973ff3f045b7">00574</a> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Circular__Buffer.html#71666739dc1f890cba5b973ff3f045b7" title="Resizing a Circular_Buffer&amp;lt;T&amp;gt;.">Circular_Buffer&lt;T&gt;::set_size</a>(<span class="keywordtype">int</span> sz, <span class="keywordtype">bool</span> copy)
533<a name="l00575"></a>00575 {
534<a name="l00576"></a>00576   <span class="keywordtype">int</span> i, min_nrof_elem;
535<a name="l00577"></a>00577   <span class="comment">//T *tmp;</span>
536<a name="l00578"></a>00578   <a class="code" href="classitpp_1_1Vec.html">Vec&lt;T&gt;</a> tmp;
537<a name="l00579"></a>00579
538<a name="l00580"></a>00580   <span class="keywordflow">if</span> (_ndata == sz)
539<a name="l00581"></a>00581     <span class="keywordflow">return</span>;
540<a name="l00582"></a>00582
541<a name="l00583"></a>00583   <span class="keywordflow">if</span> (copy) {
542<a name="l00584"></a>00584     <a class="code" href="classitpp_1_1Circular__Buffer.html#427c129a3322d3f30cce928046ab48ef" title="Peek at the latest element in the circular buffer, without removing it.">peek_reverse</a>(tmp, -1);
543<a name="l00585"></a>00585     min_nrof_elem = _rw_dist &lt; sz ? _rw_dist : sz;
544<a name="l00586"></a>00586     alloc(sz);
545<a name="l00587"></a>00587     <a class="code" href="classitpp_1_1Circular__Buffer.html#15da2e68939407a13dde647afcb56529" title="Empty the circular buffer.">clear</a>();
546<a name="l00588"></a>00588     <span class="keywordflow">for</span> (i = 0; i &lt; min_nrof_elem; i++)
547<a name="l00589"></a>00589       <a class="code" href="classitpp_1_1Circular__Buffer.html#2f0d27553c66c278fe8d35b6a1bfa758" title="Write the element in to the buffer.">put</a>(tmp(min_nrof_elem - 1 - i));
548<a name="l00590"></a>00590   }
549<a name="l00591"></a>00591   <span class="keywordflow">else</span> {
550<a name="l00592"></a>00592     free();
551<a name="l00593"></a>00593     alloc(sz);
552<a name="l00594"></a>00594   }
553<a name="l00595"></a>00595
554<a name="l00596"></a>00596   _ndata = sz;
555<a name="l00597"></a>00597 }
556<a name="l00598"></a>00598
557<a name="l00599"></a>00599 } <span class="comment">// namespace itpp</span>
558<a name="l00600"></a>00600
559<a name="l00601"></a>00601 <span class="preprocessor">#endif // #ifndef CIRCULAR_BUFFER_H</span>
560</pre></div></div>
561<hr size="1"><address style="text-align: right;"><small>Generated on Tue Jun 2 10:02:11 2009 for mixpp by&nbsp;
562<a href="http://www.doxygen.org/index.html">
563<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.8 </small></address>
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