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annotate liboctave/util/lo-ieee.h @ 17822:ebb3ef964372

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maint: Use common #define syntax "octave_filename_h" in h_files. * libgui/src/dialog.h, libgui/src/find-files-dialog.h, libgui/src/find-files-model.h, libgui/src/m-editor/file-editor-tab.h, libgui/src/m-editor/octave-qscintilla.h, libgui/src/main-window.h, libgui/src/octave-dock-widget.h, libgui/src/workspace-model.h, libgui/src/workspace-view.h, libinterp/corefcn/Cell.h, libinterp/corefcn/gl-render.h, libinterp/corefcn/gl2ps-renderer.h, libinterp/corefcn/graphics.in.h, libinterp/corefcn/oct-errno.h, libinterp/corefcn/oct-fstrm.h, libinterp/corefcn/oct-handle.h, libinterp/corefcn/oct-hdf5.h, libinterp/corefcn/oct-hist.h, libinterp/corefcn/oct-iostrm.h, libinterp/corefcn/oct-lvalue.h, libinterp/corefcn/oct-prcstrm.h, libinterp/corefcn/oct-procbuf.h, libinterp/corefcn/oct-stdstrm.h, libinterp/corefcn/oct-stream.h, libinterp/corefcn/oct-strstrm.h, libinterp/corefcn/octave-link.h, libinterp/corefcn/pt-jit.h, libinterp/octave-value/ov-base-diag.h, libinterp/octave-value/ov-base-int.h, libinterp/octave-value/ov-base-mat.h, libinterp/octave-value/ov-base-scalar.h, libinterp/octave-value/ov-base-sparse.h, libinterp/octave-value/ov-base.h, libinterp/octave-value/ov-bool-mat.h, libinterp/octave-value/ov-bool-sparse.h, libinterp/octave-value/ov-bool.h, libinterp/octave-value/ov-builtin.h, libinterp/octave-value/ov-cell.h, libinterp/octave-value/ov-ch-mat.h, libinterp/octave-value/ov-class.h, libinterp/octave-value/ov-colon.h, libinterp/octave-value/ov-complex.h, libinterp/octave-value/ov-cs-list.h, libinterp/octave-value/ov-cx-diag.h, libinterp/octave-value/ov-cx-mat.h, libinterp/octave-value/ov-cx-sparse.h, libinterp/octave-value/ov-dld-fcn.h, libinterp/octave-value/ov-fcn-handle.h, libinterp/octave-value/ov-fcn-inline.h, libinterp/octave-value/ov-fcn.h, libinterp/octave-value/ov-float.h, libinterp/octave-value/ov-flt-complex.h, libinterp/octave-value/ov-flt-cx-diag.h, libinterp/octave-value/ov-flt-cx-mat.h, libinterp/octave-value/ov-flt-re-diag.h, libinterp/octave-value/ov-flt-re-mat.h, libinterp/octave-value/ov-int-traits.h, libinterp/octave-value/ov-int16.h, libinterp/octave-value/ov-int32.h, libinterp/octave-value/ov-int64.h, libinterp/octave-value/ov-int8.h, libinterp/octave-value/ov-java.h, libinterp/octave-value/ov-lazy-idx.h, libinterp/octave-value/ov-mex-fcn.h, libinterp/octave-value/ov-null-mat.h, libinterp/octave-value/ov-perm.h, libinterp/octave-value/ov-range.h, libinterp/octave-value/ov-re-diag.h, libinterp/octave-value/ov-re-mat.h, libinterp/octave-value/ov-re-sparse.h, libinterp/octave-value/ov-scalar.h, libinterp/octave-value/ov-str-mat.h, libinterp/octave-value/ov-struct.h, libinterp/octave-value/ov-typeinfo.h, libinterp/octave-value/ov-uint16.h, libinterp/octave-value/ov-uint32.h, libinterp/octave-value/ov-uint64.h, libinterp/octave-value/ov-uint8.h, libinterp/octave-value/ov-usr-fcn.h, libinterp/octave-value/ov.h, libinterp/parse-tree/pt-all.h, libinterp/parse-tree/pt-arg-list.h, libinterp/parse-tree/pt-array-list.h, libinterp/parse-tree/pt-assign.h, libinterp/parse-tree/pt-binop.h, libinterp/parse-tree/pt-bp.h, libinterp/parse-tree/pt-cbinop.h, libinterp/parse-tree/pt-cell.h, libinterp/parse-tree/pt-check.h, libinterp/parse-tree/pt-cmd.h, libinterp/parse-tree/pt-colon.h, libinterp/parse-tree/pt-const.h, libinterp/parse-tree/pt-decl.h, libinterp/parse-tree/pt-eval.h, libinterp/parse-tree/pt-except.h, libinterp/parse-tree/pt-exp.h, libinterp/parse-tree/pt-fcn-handle.h, libinterp/parse-tree/pt-id.h, libinterp/parse-tree/pt-idx.h, libinterp/parse-tree/pt-jump.h, libinterp/parse-tree/pt-loop.h, libinterp/parse-tree/pt-mat.h, libinterp/parse-tree/pt-misc.h, libinterp/parse-tree/pt-pr-code.h, libinterp/parse-tree/pt-select.h, libinterp/parse-tree/pt-stmt.h, libinterp/parse-tree/pt-unop.h, libinterp/parse-tree/pt-walk.h, libinterp/parse-tree/pt.h, liboctave/array/CColVector.h, liboctave/array/CDiagMatrix.h, liboctave/array/CMatrix.h, liboctave/array/CNDArray.h, liboctave/array/CRowVector.h, liboctave/array/boolMatrix.h, liboctave/array/chMatrix.h, liboctave/array/chNDArray.h, liboctave/array/dColVector.h, liboctave/array/dDiagMatrix.h, liboctave/array/dMatrix.h, liboctave/array/dNDArray.h, liboctave/array/dRowVector.h, liboctave/array/fCColVector.h, liboctave/array/fCDiagMatrix.h, liboctave/array/fCMatrix.h, liboctave/array/fCNDArray.h, liboctave/array/fCRowVector.h, liboctave/array/fColVector.h, liboctave/array/fDiagMatrix.h, liboctave/array/fMatrix.h, liboctave/array/fNDArray.h, liboctave/array/fRowVector.h, liboctave/cruft/misc/lo-error.h, liboctave/numeric/CmplxAEPBAL.h, liboctave/numeric/CmplxCHOL.h, liboctave/numeric/CmplxGEPBAL.h, liboctave/numeric/CmplxHESS.h, liboctave/numeric/CmplxLU.h, liboctave/numeric/CmplxQR.h, liboctave/numeric/CmplxQRP.h, liboctave/numeric/CmplxSCHUR.h, liboctave/numeric/CmplxSVD.h, liboctave/numeric/Quad.h, liboctave/numeric/SparseCmplxCHOL.h, liboctave/numeric/SparseCmplxLU.h, liboctave/numeric/SparseCmplxQR.h, liboctave/numeric/SparseQR.h, liboctave/numeric/SparsedbleCHOL.h, liboctave/numeric/SparsedbleLU.h, liboctave/numeric/bsxfun.h, liboctave/numeric/dbleAEPBAL.h, liboctave/numeric/dbleCHOL.h, liboctave/numeric/dbleGEPBAL.h, liboctave/numeric/dbleHESS.h, liboctave/numeric/dbleLU.h, liboctave/numeric/dbleQR.h, liboctave/numeric/dbleQRP.h, liboctave/numeric/dbleSCHUR.h, liboctave/numeric/dbleSVD.h, liboctave/numeric/fCmplxAEPBAL.h, liboctave/numeric/fCmplxCHOL.h, liboctave/numeric/fCmplxGEPBAL.h, liboctave/numeric/fCmplxHESS.h, liboctave/numeric/fCmplxLU.h, liboctave/numeric/fCmplxQR.h, liboctave/numeric/fCmplxQRP.h, liboctave/numeric/fCmplxSCHUR.h, liboctave/numeric/fCmplxSVD.h, liboctave/numeric/fEIG.h, liboctave/numeric/floatAEPBAL.h, liboctave/numeric/floatCHOL.h, liboctave/numeric/floatGEPBAL.h, liboctave/numeric/floatHESS.h, liboctave/numeric/floatLU.h, liboctave/numeric/floatQR.h, liboctave/numeric/floatQRP.h, liboctave/numeric/floatSCHUR.h, liboctave/numeric/floatSVD.h, liboctave/numeric/lo-mappers.h, liboctave/numeric/lo-specfun.h, liboctave/numeric/oct-convn.h, liboctave/numeric/oct-norm.h, liboctave/numeric/oct-rand.h, liboctave/operators/Sparse-diag-op-defs.h, liboctave/operators/Sparse-op-defs.h, liboctave/operators/Sparse-perm-op-defs.h, liboctave/system/lo-sysdep.h, liboctave/system/oct-env.h, liboctave/system/oct-group.h, liboctave/system/oct-openmp.h, liboctave/system/oct-passwd.h, liboctave/system/oct-syscalls.h, liboctave/system/oct-time.h, liboctave/system/oct-uname.h, liboctave/util/lo-array-gripes.h, liboctave/util/lo-cutils.h, liboctave/util/lo-ieee.h, liboctave/util/lo-macros.h, liboctave/util/lo-math.h, liboctave/util/lo-regexp.h, liboctave/util/lo-traits.h, liboctave/util/lo-utils.h, liboctave/util/oct-base64.h, liboctave/util/oct-binmap.h, liboctave/util/oct-glob.h, liboctave/util/oct-inttypes.h, liboctave/util/oct-locbuf.h, liboctave/util/oct-mem.h, liboctave/util/oct-mutex.h, liboctave/util/oct-refcount.h, liboctave/util/oct-rl-edit.h, liboctave/util/oct-rl-hist.h, liboctave/util/oct-shlib.h, liboctave/util/oct-sort.h, liboctave/util/oct-sparse.h: Use common #define syntax "octave_filename_h" in h_files.
author Rik <rik@octave.org>
date Thu, 31 Oct 2013 22:19:07 -0700
parents d63878346099
children 89bd70fae066
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1 /*
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2
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3 Copyright (C) 1996-2013 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if !defined (octave_lo_ieee_h)
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24 #define octave_lo_ieee_h 1
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25
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26 #ifdef __cplusplus
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27 extern "C" {
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28 #endif
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29
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30 /* Octave's idea of infinity. */
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31 extern OCTAVE_API double octave_Inf;
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32
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33 /* Octave's idea of a missing value. */
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34 extern OCTAVE_API double octave_NA;
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35
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36 /* Octave's idea of not a number. */
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37 extern OCTAVE_API double octave_NaN;
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38
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39 /* Octave's idea of infinity. */
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40 extern OCTAVE_API float octave_Float_Inf;
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41
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42 /* Octave's idea of a missing value. */
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43 extern OCTAVE_API float octave_Float_NA;
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44
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45 /* Octave's idea of not a number. */
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46 extern OCTAVE_API float octave_Float_NaN;
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47
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48 /* FIXME -- this code assumes that a double has twice the
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49 number of bits as an int */
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50
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51 extern OCTAVE_API int lo_ieee_hw;
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52 extern OCTAVE_API int lo_ieee_lw;
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53
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54 typedef union
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55 {
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56 double value;
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57 unsigned int word[2];
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58 } lo_ieee_double;
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60 typedef union
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61 {
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62 float value;
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63 unsigned int word;
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64 } lo_ieee_float;
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65
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66 #define LO_IEEE_NA_HW_OLD 0x7ff00000
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67 #define LO_IEEE_NA_LW_OLD 1954
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68 #define LO_IEEE_NA_HW 0x7FF840F4
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69 #define LO_IEEE_NA_LW 0x40000000
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70 #define LO_IEEE_NA_FLOAT 0x7FC207A2
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72 extern OCTAVE_API void octave_ieee_init (void);
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74 extern OCTAVE_API int __lo_ieee_isnan (double x);
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75 extern OCTAVE_API int __lo_ieee_finite (double x);
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76 extern OCTAVE_API int __lo_ieee_isinf (double x);
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78 extern OCTAVE_API int __lo_ieee_is_NA (double);
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79 extern OCTAVE_API int __lo_ieee_is_old_NA (double);
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80 extern OCTAVE_API int __lo_ieee_is_NaN_or_NA (double) GCC_ATTR_DEPRECATED;
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81 extern OCTAVE_API double __lo_ieee_replace_old_NA (double);
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83 extern OCTAVE_API double lo_ieee_inf_value (void);
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84 extern OCTAVE_API double lo_ieee_na_value (void);
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85 extern OCTAVE_API double lo_ieee_nan_value (void);
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87 extern OCTAVE_API int __lo_ieee_signbit (double);
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88
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89 extern OCTAVE_API int __lo_ieee_float_isnan (float x);
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90 extern OCTAVE_API int __lo_ieee_float_finite (float x);
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91 extern OCTAVE_API int __lo_ieee_float_isinf (float x);
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92
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93 extern OCTAVE_API int __lo_ieee_float_is_NA (float);
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94 extern OCTAVE_API int __lo_ieee_float_is_NaN_or_NA (float) GCC_ATTR_DEPRECATED;
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95
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96 extern OCTAVE_API float lo_ieee_float_inf_value (void);
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97 extern OCTAVE_API float lo_ieee_float_na_value (void);
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98 extern OCTAVE_API float lo_ieee_float_nan_value (void);
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99
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100 extern OCTAVE_API int __lo_ieee_float_signbit (float);
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101
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102 #ifdef __cplusplus
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103 }
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104 #endif
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105
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106 #define lo_ieee_isnan(x) (sizeof (x) == sizeof (float) ? \
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107 __lo_ieee_float_isnan (x) : __lo_ieee_isnan (x))
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108 #define lo_ieee_finite(x) (sizeof (x) == sizeof (float) ? \
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109 __lo_ieee_float_finite (x) : __lo_ieee_finite (x))
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110 #define lo_ieee_isinf(x) (sizeof (x) == sizeof (float) ? \
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111 __lo_ieee_float_isinf (x) : __lo_ieee_isinf (x))
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112
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113
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114 #define lo_ieee_is_NA(x) (sizeof (x) == sizeof (float) ? \
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115 __lo_ieee_float_is_NA (x) : __lo_ieee_is_NA (x))
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116 #define lo_ieee_is_NaN_or_NA(x) (sizeof (x) == sizeof (float) ? \
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117 __lo_ieee_float_is_NaN_or_NA (x) : __lo_ieee_is_NaN_or_NA (x))
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118 #define lo_ieee_signbit(x) (sizeof (x) == sizeof (float) ? \
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119 __lo_ieee_float_signbit (x) : __lo_ieee_signbit (x))
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120
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121 #ifdef __cplusplus
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122
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123 template <typename T>
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124 struct octave_numeric_limits
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125 {
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126 static T NA (void) { return static_cast<T> (0); }
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127 };
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128
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129 template <>
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130 struct octave_numeric_limits<double>
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131 {
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132 static double NA (void) { return octave_NA; }
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133 };
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134
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135 template <>
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136 struct octave_numeric_limits<float>
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137 {
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138 static float NA (void) { return octave_Float_NA; }
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139 };
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140
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141 #endif
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142
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143 #endif