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annotate liboctave/lo-mappers.h @ 10521:4d1fc073fbb7

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add some missing copyright stmts
author Jaroslav Hajek <highegg@gmail.com>
date Wed, 14 Apr 2010 12:23:13 +0200
parents 00219bdd2d17
children 9478b216752e
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1967
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1 /*
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2
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3 Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005,
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4 2006, 2007, 2008 John W. Eaton
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5 Copyright (C) 2010 VZLU Prague
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6
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7 This file is part of Octave.
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8
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9 Octave is free software; you can redistribute it and/or modify it
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10 under the terms of the GNU General Public License as published by the
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11 Free Software Foundation; either version 3 of the License, or (at your
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12 option) any later version.
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13
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14 Octave is distributed in the hope that it will be useful, but WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with Octave; see the file COPYING. If not, see
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21 <http://www.gnu.org/licenses/>.
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22
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23 */
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24
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25 #if !defined (octave_liboctave_mappers_h)
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26 #define octave_liboctave_mappers_h 1
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27
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28 #include "oct-cmplx.h"
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29 #include "lo-math.h"
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30
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31 // Double Precision
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32 extern OCTAVE_API double arg (double x);
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33 extern OCTAVE_API double conj (double x);
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34 extern OCTAVE_API double fix (double x);
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35 extern OCTAVE_API double imag (double x);
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36 extern OCTAVE_API double real (double x);
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37 extern OCTAVE_API double xround (double x);
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38 extern OCTAVE_API double xroundb (double x);
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39 extern OCTAVE_API double signum (double x);
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40 extern OCTAVE_API double xtrunc (double x);
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41 extern OCTAVE_API double mod (double x, double y);
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42 extern OCTAVE_API double xlog2 (double x);
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43 extern OCTAVE_API Complex xlog2 (const Complex& x);
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44 extern OCTAVE_API double xlog2 (double x, int& exp);
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45 extern OCTAVE_API Complex xlog2 (const Complex& x, int& exp);
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46 extern OCTAVE_API double xexp2 (double x);
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47
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48 // These are used by the BOOL_OP macros in mx-op-defs.h.
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49 inline bool xisnan (bool) { return false; }
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50 inline bool xisnan (char) { return false; }
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51
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52 #if defined (HAVE_CMATH_ISNAN)
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53 inline bool xisnan (double x)
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54 { return std::isnan (x); }
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55 #else
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56 extern OCTAVE_API bool xisnan (double x);
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57 #endif
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58 #if defined (HAVE_CMATH_ISFINITE)
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59 inline bool xfinite (double x)
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60 { return std::isfinite (x); }
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61 #else
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62 extern OCTAVE_API bool xfinite (double x);
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63 #endif
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64 #if defined (HAVE_CMATH_ISINF)
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65 inline bool xisinf (double x)
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66 { return std::isinf (x); }
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67 #else
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68 extern OCTAVE_API bool xisinf (double x);
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69 #endif
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70
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71 extern OCTAVE_API bool octave_is_NA (double x);
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72 extern OCTAVE_API bool octave_is_NaN_or_NA (double x) GCC_ATTR_DEPRECATED;
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73
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74 // Generic xmin, xmax definitions
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75 template <class T>
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76 inline T xmin (T x, T y)
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77 { return x <= y ? x : y; }
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78 template <class T>
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79 inline T xmax (T x, T y)
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80 { return x >= y ? x : y; }
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81
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82 // This form is favorable. GCC will translate (x <= y ? x : y) without a jump,
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83 // hence the only conditional jump involved will be the first (xisnan), infrequent
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84 // and hence friendly to branch prediction.
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85 inline double xmin (double x, double y)
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86 { return xisnan (y) ? x : (x <= y ? x : y);; }
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87 inline double xmax (double x, double y)
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88 { return xisnan (y) ? x : (x >= y ? x : y);; }
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89
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90 extern OCTAVE_API Complex acos (const Complex& x);
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91 extern OCTAVE_API Complex acosh (const Complex& x);
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92 extern OCTAVE_API Complex asin (const Complex& x);
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93 extern OCTAVE_API Complex asinh (const Complex& x);
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94 extern OCTAVE_API Complex atan (const Complex& x);
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95 extern OCTAVE_API Complex atanh (const Complex& x);
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96
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97 extern OCTAVE_API Complex ceil (const Complex& x);
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98 extern OCTAVE_API Complex fix (const Complex& x);
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99 extern OCTAVE_API Complex floor (const Complex& x);
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100 extern OCTAVE_API Complex xround (const Complex& x);
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101 extern OCTAVE_API Complex xroundb (const Complex& x);
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102 extern OCTAVE_API Complex signum (const Complex& x);
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103
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104 inline bool
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105 xisnan (const Complex& x)
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106 { return (xisnan (real (x)) || xisnan (imag (x))); }
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107 inline bool
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108 xfinite (const Complex& x)
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109 { return (xfinite (real (x)) && xfinite (imag (x))); }
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110 inline bool
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111 xisinf (const Complex& x)
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112 { return (xisinf (real (x)) || xisinf (imag (x))); }
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113
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114 extern OCTAVE_API bool octave_is_NA (const Complex& x);
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115 extern OCTAVE_API bool octave_is_NaN_or_NA (const Complex& x);
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116
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117 extern OCTAVE_API Complex xmin (const Complex& x, const Complex& y);
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118 extern OCTAVE_API Complex xmax (const Complex& x, const Complex& y);
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119
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120 // Single Precision
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121 extern OCTAVE_API float arg (float x);
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122 extern OCTAVE_API float conj (float x);
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123 extern OCTAVE_API float fix (float x);
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124 extern OCTAVE_API float imag (float x);
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125 extern OCTAVE_API float real (float x);
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126 extern OCTAVE_API float xround (float x);
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127 extern OCTAVE_API float xroundb (float x);
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128 extern OCTAVE_API float signum (float x);
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129 extern OCTAVE_API float xtrunc (float x);
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130 extern OCTAVE_API float mod (float x, float y);
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131 extern OCTAVE_API float xlog2 (float x);
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132 extern OCTAVE_API FloatComplex xlog2 (const FloatComplex& x);
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133 extern OCTAVE_API float xlog2 (float x, int& exp);
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134 extern OCTAVE_API FloatComplex xlog2 (const FloatComplex& x, int& exp);
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135 extern OCTAVE_API float xexp2 (float x);
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136
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137 #if defined (HAVE_CMATH_ISNANF)
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138 inline bool xisnan (float x)
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139 { return std::isnan (x); }
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140 #else
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141 extern OCTAVE_API bool xisnan (float x);
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142 #endif
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143 #if defined (HAVE_CMATH_ISFINITEF)
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144 inline bool xfinite (float x)
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145 { return std::isfinite (x); }
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146 #else
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147 extern OCTAVE_API bool xfinite (float x);
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148 #endif
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149 #if defined (HAVE_CMATH_ISINFF)
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150 inline bool xisinf (float x)
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151 { return std::isinf (x); }
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152 #else
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153 extern OCTAVE_API bool xisinf (float x);
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154 #endif
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155
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156
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157 extern OCTAVE_API bool octave_is_NA (float x);
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158 extern OCTAVE_API bool octave_is_NaN_or_NA (float x) GCC_ATTR_DEPRECATED;
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159
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160 inline float xmin (float x, float y)
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161 { return xisnan (y) ? x : (x <= y ? x : y);; }
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162 inline float xmax (float x, float y)
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163 { return xisnan (y) ? x : (x >= y ? x : y);; }
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164
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165 extern OCTAVE_API FloatComplex acos (const FloatComplex& x);
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166 extern OCTAVE_API FloatComplex acosh (const FloatComplex& x);
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167 extern OCTAVE_API FloatComplex asin (const FloatComplex& x);
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168 extern OCTAVE_API FloatComplex asinh (const FloatComplex& x);
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169 extern OCTAVE_API FloatComplex atan (const FloatComplex& x);
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170 extern OCTAVE_API FloatComplex atanh (const FloatComplex& x);
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171
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172 extern OCTAVE_API FloatComplex ceil (const FloatComplex& x);
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173 extern OCTAVE_API FloatComplex fix (const FloatComplex& x);
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174 extern OCTAVE_API FloatComplex floor (const FloatComplex& x);
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175 extern OCTAVE_API FloatComplex xround (const FloatComplex& x);
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176 extern OCTAVE_API FloatComplex xroundb (const FloatComplex& x);
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177 extern OCTAVE_API FloatComplex signum (const FloatComplex& x);
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178
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179 inline bool
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180 xisnan (const FloatComplex& x)
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181 { return (xisnan (real (x)) || xisnan (imag (x))); }
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182 inline bool
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183 xfinite (const FloatComplex& x)
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184 { return (xfinite (real (x)) && xfinite (imag (x))); }
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185 inline bool
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186 xisinf (const FloatComplex& x)
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187 { return (xisinf (real (x)) || xisinf (imag (x))); }
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188
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189 extern OCTAVE_API bool octave_is_NA (const FloatComplex& x);
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190 extern OCTAVE_API bool octave_is_NaN_or_NA (const FloatComplex& x);
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191
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192 extern OCTAVE_API FloatComplex xmin (const FloatComplex& x, const FloatComplex& y);
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193 extern OCTAVE_API FloatComplex xmax (const FloatComplex& x, const FloatComplex& y);
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194
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195 // These map reals to Complex.
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196
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197 extern OCTAVE_API Complex rc_acos (double);
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198 extern OCTAVE_API FloatComplex rc_acos (float);
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199 extern OCTAVE_API Complex rc_acosh (double);
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200 extern OCTAVE_API FloatComplex rc_acosh (float);
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201 extern OCTAVE_API Complex rc_asin (double);
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202 extern OCTAVE_API FloatComplex rc_asin (float);
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203 extern OCTAVE_API Complex rc_atanh (double);
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204 extern OCTAVE_API FloatComplex rc_atanh (float);
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205 extern OCTAVE_API Complex rc_log (double);
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206 extern OCTAVE_API FloatComplex rc_log (float);
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207 extern OCTAVE_API Complex rc_log2 (double);
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208 extern OCTAVE_API FloatComplex rc_log2 (float);
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209 extern OCTAVE_API Complex rc_log10 (double);
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210 extern OCTAVE_API FloatComplex rc_log10 (float);
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211 extern OCTAVE_API Complex rc_sqrt (double);
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212 extern OCTAVE_API FloatComplex rc_sqrt (float);
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213
1967
4cb6aaa0f2c7 [project @ 1996-02-17 02:54:24 by jwe]
jwe
parents:
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214 #endif