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<a href="wcsutil_8h.html">Go to the documentation of this file.</a><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"></span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> WCSLIB 4.18 - an implementation of the FITS WCS standard.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> Copyright (C) 1995-2013, Mark Calabretta</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> This file is part of WCSLIB.</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> WCSLIB is free software: you can redistribute it and/or modify it under the</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> terms of the GNU Lesser General Public License as published by the Free</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> Software Foundation, either version 3 of the License, or (at your option)</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> any later version.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"></span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> WCSLIB is distributed in the hope that it will be useful, but WITHOUT ANY</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> more details.</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"></span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> You should have received a copy of the GNU Lesser General Public License</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> along with WCSLIB. If not, see http://www.gnu.org/licenses.</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"></span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> Direct correspondence concerning WCSLIB to mark@calabretta.id.au</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"></span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> Author: Mark Calabretta, Australia Telescope National Facility, CSIRO.</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> http://www.atnf.csiro.au/people/Mark.Calabretta</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> $Id: wcsutil.h,v 4.18 2013/07/13 10:00:04 mcalabre Exp $</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">*=============================================================================</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">*</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">* Summary of the wcsutil routines</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">* -------------------------------</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">* Simple utility functions for internal use only by WCSLIB. They are</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">* documented here solely as an aid to understanding the code. They are not</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">* intended for external use - the API may change without notice!</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">*</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">*</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">* wcsutil_blank_fill() - Fill a character string with blanks</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">* ----------------------------------------------------------</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">* INTERNAL USE ONLY.</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment">*</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment">* wcsutil_blank_fill() pads a character string with blanks starting with the</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment">* terminating NULL character.</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment">*</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment">* Used by the Fortran wrapper functions in translating C character strings</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment">* into Fortran CHARACTER variables.</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment">*</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment">* Given:</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment">* n int Length of the character array, c[].</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment">*</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment">* Given and returned:</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment">* c char[] The character string. It will not be null-terminated</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment">* on return.</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment">*</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment">* Function return value:</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment">* void</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment">*</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment">*</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment">* wcsutil_null_fill() - Fill a character string with NULLs</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment">* --------------------------------------------------------</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment">* INTERNAL USE ONLY.</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment">*</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment">* wcsutil_null_fill() strips off trailing blanks and pads the character array</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment">* holding the string with NULL characters.</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment">*</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment">* Used mainly to make character strings intelligible in the GNU debugger which</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment">* prints the rubbish following the terminating NULL, obscuring the valid part</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment">* of the string.</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment">*</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment">* Given:</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment">* n int Number of characters.</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment">*</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment">* Given and returned:</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment">* c char[] The character string.</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">*</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment">* Function return value:</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment">* void</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment">*</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment">*</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment">* wcsutil_allEq() - Test for equality of a particular vector element</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment">* ------------------------------------------------------------------</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment">* INTERNAL USE ONLY.</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment">*</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">* wcsutil_allEq() tests for equality of a particular element in a set of</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment">* vectors.</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment">*</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment">* Given:</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment">* nvec int The number of vectors.</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment">*</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment">* nelem int The length of each vector.</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment">*</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment">* first const double*</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment">* Pointer to the first element to test in the array.</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment">* The elements tested for equality are</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment">*</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment">= *first == *(first + nelem)</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment">= == *(first + nelem*2)</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment">= :</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment">= == *(first + nelem*(nvec-1));</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment">*</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment">* The array might be dimensioned as</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment">*</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment">= double v[nvec][nelem];</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment">*</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment">* Function return value:</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment">* int Status return value:</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment">* 0: Not all equal.</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment">* 1: All equal.</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment">*</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment">*</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment">* wcsutil_setAll() - Set a particular vector element</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="comment">* --------------------------------------------------</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="comment">* INTERNAL USE ONLY.</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment">*</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment">* wcsutil_setAll() sets the value of a particular element in a set of vectors.</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment">*</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment">* Given:</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment">* nvec int The number of vectors.</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment">*</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment">* nelem int The length of each vector.</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment">*</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment">* Given and returned:</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment">* first double* Pointer to the first element in the array, the value</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment">* of which is used to set the others</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment">*</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment">= *(first + nelem) = *first;</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment">= *(first + nelem*2) = *first;</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="comment">= :</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment">= *(first + nelem*(nvec-1)) = *first;</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment">*</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment">* The array might be dimensioned as</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment">*</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment">= double v[nvec][nelem];</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment">*</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment">* Function return value:</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment">* void</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment">*</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="comment">*</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment">* wcsutil_setAli() - Set a particular vector element</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment">* --------------------------------------------------</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment">* INTERNAL USE ONLY.</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment">*</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment">* wcsutil_setAli() sets the value of a particular element in a set of vectors.</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="comment">*</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="comment">* Given:</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="comment">* nvec int The number of vectors.</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="comment">*</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="comment">* nelem int The length of each vector.</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment">*</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="comment">* Given and returned:</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="comment">* first int* Pointer to the first element in the array, the value</span></div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment">* of which is used to set the others</span></div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment">*</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment">= *(first + nelem) = *first;</span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment">= *(first + nelem*2) = *first;</span></div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment">= :</span></div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment">= *(first + nelem*(nvec-1)) = *first;</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment">*</span></div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment">* The array might be dimensioned as</span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="comment">*</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment">= int v[nvec][nelem];</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment">*</span></div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment">* Function return value:</span></div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment">* void</span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment">*</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment">*</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment">* wcsutil_setBit() - Set bits in selected elements of an array</span></div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment">* ------------------------------------------------------------</span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="comment">* INTERNAL USE ONLY.</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="comment">*</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="comment">* wcsutil_setBit() sets bits in selected elements of an array.</span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="comment">*</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment">* Given:</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment">* nelem int Number of elements in the array.</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment">*</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment">* sel const int*</span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment">* Address of a selection array of length nelem. May</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment">* be specified as the null pointer in which case all</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment">* elements are selected.</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment">*</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment">* bits int Bit mask.</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment">*</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="comment">* Given and returned:</span></div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="comment">* array int* Address of the array of length nelem.</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="comment">*</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="comment">* Function return value:</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment">* void</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment">*</span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment">*</span></div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment">* wcsutil_fptr2str() - Translate pointer-to-function to string</span></div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment">* ------------------------------------------------------------</span></div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment">* INTERNAL USE ONLY.</span></div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment">*</span></div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment">* wcsutil_fptr2str() translates a pointer-to-function to hexadecimal string</span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="comment">* representation for output. It is used by the various routines that print</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="comment">* the contents of WCSLIB structs, noting that it is not strictly legal to</span></div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment">* type-pun a function pointer to void*. See</span></div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment">* http://stackoverflow.com/questions/2741683/how-to-format-a-function-pointer</span></div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment">*</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment">* Given:</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment">* fptr int(*)() Pointer to function.</span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="comment">*</span></div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment">* Returned:</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="comment">* hext char[19] Null-terminated string. Should be at least 19 bytes</span></div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment">* in size to accomodate a 64-bit address (16 bytes in</span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="comment">* hex), plus the leading "0x" and trailing '\0'.</span></div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="comment">*</span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="comment">* Function return value:</span></div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment">* char * The address of hext.</span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment">*</span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment">*</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment">* wcsutil_double2str() - Translate double to string ignoring the locale</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment">* ---------------------------------------------------------------------</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment">* INTERNAL USE ONLY.</span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment">*</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment">* wcsutil_double2str() converts a double to a string, but unlike sprintf() it</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <span class="comment">* ignores the locale and always uses a '.' as the decimal separator.</span></div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="comment">*</span></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="comment">* Returned:</span></div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment">* buf char * The buffer to write the string into.</span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="comment">*</span></div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="comment">* Given:</span></div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment">* format char * The formatting directive, such as "%f". This</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="comment">* may be any of the forms accepted by sprintf(), but</span></div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="comment">* should only include a formatting directive and</span></div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment">* nothing else.</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment">*</span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment">* value double The value to convert to a string.</span></div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment">*</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment">*</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment">* wcsutil_str2double() - Translate string to a double, ignoring the locale</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment">* ------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment">* INTERNAL USE ONLY.</span></div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment">*</span></div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment">* wcsutil_str2double() converts a string to a double, but unlike sscanf() it</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment">* ignores the locale and always expects a '.' as the decimal separator.</span></div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="comment">*</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="comment">* Given:</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment">* buf char * The string containing the value</span></div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="comment">*</span></div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="comment">* format char * The formatting directive, such as "%lf". This</span></div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment">* may be any of the forms accepted by sscanf(), but</span></div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment">* should only include a single formatting directive.</span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment">*</span></div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment">* Returned:</span></div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment">* value double * The double value parsed from the string.</span></div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment">*</span></div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment">*===========================================================================*/</span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="preprocessor">#ifndef WCSLIB_WCSUTIL</span></div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="preprocessor"></span><span class="preprocessor">#define WCSLIB_WCSUTIL</span></div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="keywordtype">void</span> <a class="code" href="wcsutil_8h.html#a38322fa65b3bad54552d374d873ad037" title="Fill a character string with blanks. ">wcsutil_blank_fill</a>(<span class="keywordtype">int</span> n, <span class="keywordtype">char</span> c[]);</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="keywordtype">void</span> <a class="code" href="wcsutil_8h.html#a9d96f343fc444f8c6f1fa01367c4d765" title="Fill a character string with NULLs. ">wcsutil_null_fill</a> (<span class="keywordtype">int</span> n, <span class="keywordtype">char</span> c[]);</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="keywordtype">int</span> <a class="code" href="wcsutil_8h.html#a4c7c5a686aaa39f511598b32e944ac68" title="Test for equality of a particular vector element. ">wcsutil_allEq</a> (<span class="keywordtype">int</span> nvec, <span class="keywordtype">int</span> nelem, <span class="keyword">const</span> <span class="keywordtype">double</span> *first);</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="keywordtype">void</span> <a class="code" href="wcsutil_8h.html#afe7f963c2038673015bbce204c4a8171" title="Set a particular vector element. ">wcsutil_setAll</a>(<span class="keywordtype">int</span> nvec, <span class="keywordtype">int</span> nelem, <span class="keywordtype">double</span> *first);</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="keywordtype">void</span> <a class="code" href="wcsutil_8h.html#ab32722081f8cda184d7ada6d734c637c" title="Set a particular vector element. ">wcsutil_setAli</a>(<span class="keywordtype">int</span> nvec, <span class="keywordtype">int</span> nelem, <span class="keywordtype">int</span> *first);</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="keywordtype">void</span> <a class="code" href="wcsutil_8h.html#a0d982911e7f694a751f2887ea38890e4" title="Set bits in selected elements of an array. ">wcsutil_setBit</a>(<span class="keywordtype">int</span> nelem, <span class="keyword">const</span> <span class="keywordtype">int</span> *sel, <span class="keywordtype">int</span> bits, <span class="keywordtype">int</span> *array);</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="keywordtype">char</span> *<a class="code" href="wcsutil_8h.html#a3ef49870f09968c7e6b8703454eceaf7" title="Translate pointer-to-function to string. ">wcsutil_fptr2str</a>(<span class="keywordtype">int</span> (*func)(<span class="keywordtype">void</span>), <span class="keywordtype">char</span> hext[19]);</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="keywordtype">int</span> <a class="code" href="wcsutil_8h.html#ae8737835ddec9c1a7ae34529151c86e3" title="Translate string to a double, ignoring the locale. ">wcsutil_str2double</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *buf, <span class="keyword">const</span> <span class="keywordtype">char</span> *format, <span class="keywordtype">double</span> *value);</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="keywordtype">void</span> <a class="code" href="wcsutil_8h.html#a1f7aec8e3deb2a3f206f81f0cdc50843" title="Translate double to string ignoring the locale. ">wcsutil_double2str</a>(<span class="keywordtype">char</span> *buf, <span class="keyword">const</span> <span class="keywordtype">char</span> *format, <span class="keywordtype">double</span> value);</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="preprocessor"></span>}</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="preprocessor">#endif </span><span class="comment">/* WCSLIB_WCSUTIL */</span><span class="preprocessor"></span></div>
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