Mercurial > octave
view libinterp/corefcn/oct-handle.h @ 21721:bcc30b45a225
define octave_numeric_limits template methods for Inf and NaN
* lo-ieee.h (octave_numeric_limits::Inf, octave_numeric_limits::NaN):
New methods.
* Canvas.cc, data.cc, graphics.cc, graphics.in.h, oct-handle.h,
oct-stream.cc, quadcc.cc, sparse-xdiv.cc, str2double.cc, variables.h,
__glpk__.cc, __init_fltk__.cc, __voronoi__.cc, octave.cc, Matrix.cc,
CNDArray.cc, CSparse.cc, Sparse-C.cc, dDiagMatrix.cc, dMatrix.cc,
dSparse.cc, fCMatrix.cc, fCNDArray.cc, fDiagMatrix.cc, fMatrix.cc,
Faddeeva.cc, eigs-base.cc, lo-mappers.cc, lo-mappers.h, lo-specfun.cc,
oct-norm.cc, oct-rand.cc, oct-rand.h, oct-spparms.cc, randgamma.cc,
randpoisson.cc: Use them instead of octave_Inf, octave_Float_Inf,
octave_NaN, and octave_Float_NaN.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 17 May 2016 01:11:27 -0400 |
parents | 1473547f50f5 |
children | bae585228161 |
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/* Copyright (C) 2007-2015 John W. Eaton This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if ! defined (octave_oct_handle_h) #define octave_oct_handle_h 1 #include "octave-config.h" #include "dMatrix.h" #include "lo-ieee.h" #include "ov.h" // --------------------------------------------------------------------- class octave_handle { public: octave_handle (void) : val (octave_numeric_limits<double>::NaN ()) { } octave_handle (const octave_value& a) : val (octave_numeric_limits<double>::NaN ()) { if (a.is_empty ()) ; // do nothing else { try { val = a.double_value (); } catch (octave_execution_exception& e) { error (e, "invalid handle"); } } } octave_handle (int a) : val (a) { } octave_handle (double a) : val (a) { } octave_handle (const octave_handle& a) : val (a.val) { } octave_handle& operator = (const octave_handle& a) { if (&a != this) val = a.val; return *this; } ~octave_handle (void) { } double value (void) const { return val; } octave_value as_octave_value (void) const { return ok () ? octave_value (val) : octave_value (Matrix ()); } // Prefix increment/decrement operators. octave_handle& operator ++ (void) { ++val; return *this; } octave_handle& operator -- (void) { --val; return *this; } // Postfix increment/decrement operators. const octave_handle operator ++ (int) { octave_handle old_value = *this; ++(*this); return old_value; } const octave_handle operator -- (int) { octave_handle old_value = *this; --(*this); return old_value; } bool ok (void) const { return ! xisnan (val); } private: double val; }; inline bool operator == (const octave_handle& a, const octave_handle& b) { return a.value () == b.value (); } inline bool operator != (const octave_handle& a, const octave_handle& b) { return a.value () != b.value (); } inline bool operator < (const octave_handle& a, const octave_handle& b) { return a.value () < b.value (); } inline bool operator <= (const octave_handle& a, const octave_handle& b) { return a.value () <= b.value (); } inline bool operator >= (const octave_handle& a, const octave_handle& b) { return a.value () >= b.value (); } inline bool operator > (const octave_handle& a, const octave_handle& b) { return a.value () > b.value (); } #endif