Mercurial > octave
view test/bug-46330.tst @ 28236:5bb1c0cbb27e
dec2bin.m: Allow negative number inputs (bug #58147).
* dec2bin.m: Document that negative numbers are converted according to 2's
complement convention. Add example to documentation of converting a
negative number. Add algorithm to detect negative inputs and add the
appropriate offset for 2's complement notation. Add BIST tests.
author | Nicholas R. Jankowski <jankowskin@asme.org> |
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date | Wed, 22 Apr 2020 15:53:51 -0700 |
parents | bd51beb6205e |
children | 0a5b15007766 |
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######################################################################## ## ## Copyright (C) 2010-2020 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## 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 ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## bug #46330: segfault with matrices containing Inf & NaN %!warning %! a = [-0.46E-01, 0.10681415316, 0.0, -0.17121680433; %! -0.1675901504661613, -0.515, 1.0, 0.6420630320636088E-02; %! 0.1543104215347786, -0.547945, -0.906, -0.1521689385990753E-02; %! 0.0, 0.0, 1.0, 0.0]; %! %! b = [0.1602300107479095, 0.2111848453E-02; %! 0.8196877780963616E-02, -0.3025E-01; %! 0.9173594317692437E-01, -0.75283075; %! 0.0, 0.0]; %! %! c = [1.0, 0.0, 0.0, 0.0; %! 0.0, 0.0, 0.0, 1.0]; %! %! ## This statement caused an error in LAPACK and eventually caused %! ## a segmentation fault. %! ## Triggers "warning: matrix singular to machine precision" %! assert (c / (i * Inf * eye (4) - a) * b, zeros (2, 2))