kopia lustrzana https://github.com/Dsplib/libdspl-2.0
108 wiersze
22 KiB
HTML
108 wiersze
22 KiB
HTML
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<div id="projectname">libdspl-2.0
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<div id="projectbrief">Библиотека алгоритмов цифровой обработки сигналов</div>
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<li class="navelem"><a class="el" href="dir_12d635cfd40a13a86dc83e7a5cc309f3.html">src</a></li> </ul>
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<div class="title">fillarray.c</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">* Copyright (c) 2015-2019 Sergey Bakhurin</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">* Digital Signal Processing Library [http://dsplib.org]</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">*</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">* This file is part of libdspl-2.0.</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">*</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">* is free software: you can redistribute it and/or modify</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">* it under the terms of the GNU Lesser General Public License as published by</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">* the Free Software Foundation, either version 3 of the License, or</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">* (at your option) any later version.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">*</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">* DSPL is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">* but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">* GNU General Public License for more details.</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">*</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">* You should have received a copy of the GNU Lesser General Public License</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">* along with Foobar. If not, see <http://www.gnu.org/licenses/>.</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">*/</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <stdlib.h></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <math.h></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "dspl.h"</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">/*******************************************************************************</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">Linspace array filling</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">*******************************************************************************/</span></div><div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="group___s_p_e_c___m_a_t_h___c_o_m_m_o_n___g_r_o_u_p.html#ga1ba7e0e9f5194114592abaa49a146def"> 31</a></span> <span class="keywordtype">int</span> DSPL_API <a class="code" href="group___s_p_e_c___m_a_t_h___c_o_m_m_o_n___g_r_o_u_p.html#ga1ba7e0e9f5194114592abaa49a146def">linspace</a>(<span class="keywordtype">double</span> x0, <span class="keywordtype">double</span> x1, <span class="keywordtype">int</span> n, <span class="keywordtype">int</span> type, <span class="keywordtype">double</span>* x)</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> {</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keywordtype">double</span> dx;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordtype">int</span> k;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">if</span>(n < 2)</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">return</span> <a class="code" href="group___e_r_r_o_r___c_o_d_e___g_r_o_u_p.html#ga75a729cde9582beeb20e77f18407f426">ERROR_SIZE</a>;</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordflow">if</span>(!x)</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">return</span> <a class="code" href="group___e_r_r_o_r___c_o_d_e___g_r_o_u_p.html#ga477d967805466948edb85d57c95532a3">ERROR_PTR</a>;</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">switch</span> (type)</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  {</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">case</span> DSPL_SYMMETRIC:</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  dx = (x1 - x0)/(<span class="keywordtype">double</span>)(n-1);</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  x[0] = x0;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">for</span>(k = 1; k < n; k++)</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  x[k] = x[k-1] + dx;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">case</span> DSPL_PERIODIC:</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  dx = (x1 - x0)/(<span class="keywordtype">double</span>)n;</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  x[0] = x0;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">for</span>(k = 1; k < n; k++)</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  x[k] = x[k-1] + dx;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">return</span> ERROR_SYM_TYPE;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  }</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">return</span> <a class="code" href="group___e_r_r_o_r___c_o_d_e___g_r_o_u_p.html#ga312c04ce416e0afdbd653394e36a117d">RES_OK</a>;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> }</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment">/*******************************************************************************</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment">Logspace array filling</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment">*******************************************************************************/</span></div><div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="group___s_p_e_c___m_a_t_h___c_o_m_m_o_n___g_r_o_u_p.html#gad18821174e4a11f75c5d381732249122"> 68</a></span> <span class="keywordtype">int</span> DSPL_API <a class="code" href="group___s_p_e_c___m_a_t_h___c_o_m_m_o_n___g_r_o_u_p.html#gad18821174e4a11f75c5d381732249122">logspace</a>(<span class="keywordtype">double</span> x0, <span class="keywordtype">double</span> x1, <span class="keywordtype">int</span> n, <span class="keywordtype">int</span> type, <span class="keywordtype">double</span>* x)</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> {</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordtype">double</span> mx, a, b;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">int</span> k;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">if</span>(n < 2)</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">return</span> <a class="code" href="group___e_r_r_o_r___c_o_d_e___g_r_o_u_p.html#ga75a729cde9582beeb20e77f18407f426">ERROR_SIZE</a>;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">if</span>(!x)</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">return</span> <a class="code" href="group___e_r_r_o_r___c_o_d_e___g_r_o_u_p.html#ga477d967805466948edb85d57c95532a3">ERROR_PTR</a>;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  a = pow(10.0, x0);</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  b = pow(10.0, x1);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">switch</span> (type)</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  {</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">case</span> DSPL_SYMMETRIC:</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  mx = pow(b/a, 1.0/(<span class="keywordtype">double</span>)(n-1));</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  x[0] = a;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">for</span>(k = 1; k < n; k++)</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  x[k] = x[k-1] * mx;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">case</span> DSPL_PERIODIC:</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  mx = pow(b/a, 1.0/(<span class="keywordtype">double</span>)n);</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  x[0] = a;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">for</span>(k = 1; k < n; k++)</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  x[k] = x[k-1] * mx;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> ERROR_SYM_TYPE;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">return</span> <a class="code" href="group___e_r_r_o_r___c_o_d_e___g_r_o_u_p.html#ga312c04ce416e0afdbd653394e36a117d">RES_OK</a>;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> }</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div><div class="ttc" id="group___e_r_r_o_r___c_o_d_e___g_r_o_u_p_html_ga75a729cde9582beeb20e77f18407f426"><div class="ttname"><a href="group___e_r_r_o_r___c_o_d_e___g_r_o_u_p.html#ga75a729cde9582beeb20e77f18407f426">ERROR_SIZE</a></div><div class="ttdeci">#define ERROR_SIZE</div><div class="ttdoc">Ошибка при передаче размера массива. Данная ошибка возникает когда помимо указателя на массив входных...</div><div class="ttdef"><b>Definition:</b> <a href="dspl_8h_source.html#l00148">dspl.h:148</a></div></div>
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<div class="ttc" id="group___e_r_r_o_r___c_o_d_e___g_r_o_u_p_html_ga477d967805466948edb85d57c95532a3"><div class="ttname"><a href="group___e_r_r_o_r___c_o_d_e___g_r_o_u_p.html#ga477d967805466948edb85d57c95532a3">ERROR_PTR</a></div><div class="ttdeci">#define ERROR_PTR</div><div class="ttdoc">Ошибка указателя. Данная ошибка означает, что один из обязательных указателей (память под который дол...</div><div class="ttdef"><b>Definition:</b> <a href="dspl_8h_source.html#l00140">dspl.h:140</a></div></div>
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<div class="ttc" id="group___s_p_e_c___m_a_t_h___c_o_m_m_o_n___g_r_o_u_p_html_gad18821174e4a11f75c5d381732249122"><div class="ttname"><a href="group___s_p_e_c___m_a_t_h___c_o_m_m_o_n___g_r_o_u_p.html#gad18821174e4a11f75c5d381732249122">logspace</a></div><div class="ttdeci">int logspace(double x0, double x1, int n, int type, double *x)</div><div class="ttdoc">Функция заполняет массив значениями логарифмической шкале</div><div class="ttdef"><b>Definition:</b> <a href="fillarray_8c_source.html#l00068">fillarray.c:68</a></div></div>
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<div class="ttc" id="group___s_p_e_c___m_a_t_h___c_o_m_m_o_n___g_r_o_u_p_html_ga1ba7e0e9f5194114592abaa49a146def"><div class="ttname"><a href="group___s_p_e_c___m_a_t_h___c_o_m_m_o_n___g_r_o_u_p.html#ga1ba7e0e9f5194114592abaa49a146def">linspace</a></div><div class="ttdeci">int linspace(double x0, double x1, int n, int type, double *x)</div><div class="ttdoc">Функция заполняет массив линейно-нарастающими, равноотстоящими значениями от x0 до x1</div><div class="ttdef"><b>Definition:</b> <a href="fillarray_8c_source.html#l00031">fillarray.c:31</a></div></div>
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<div class="ttc" id="group___e_r_r_o_r___c_o_d_e___g_r_o_u_p_html_ga312c04ce416e0afdbd653394e36a117d"><div class="ttname"><a href="group___e_r_r_o_r___c_o_d_e___g_r_o_u_p.html#ga312c04ce416e0afdbd653394e36a117d">RES_OK</a></div><div class="ttdeci">#define RES_OK</div><div class="ttdoc">Функция завершилась корректно. Ошибки отсутствуют.</div><div class="ttdef"><b>Definition:</b> <a href="dspl_8h_source.html#l00094">dspl.h:94</a></div></div>
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Документация по libdspl-2.0. Последние изменения: Пн 4 Ноя 2019 16:56:51. Создано системой  <a href="http://www.doxygen.org/index.html">
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