Mercurial > octave
view libinterp/corefcn/display.h @ 27477:b470734a025e
Return an empty string from rats when input is empty (bug #57004).
* pr-output.cc (Frats): Use isempty() to detect special case of input early and
immediately return an empty string. Add BIST test for bug #57004.
author | Rik <rik@octave.org> |
---|---|
date | Sat, 05 Oct 2019 14:04:36 -0700 |
parents | 1565c39aa940 |
children | b442ec6dda5c |
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/* Copyright (C) 2009-2019 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 <https://www.gnu.org/licenses/>. */ #if ! defined (octave_display_h) #define octave_display_h 1 #include "octave-config.h" #include <string> class Matrix; namespace octave { class display_info { public: // Create object with default values. To be useful, you must call // initialize to find the actual system parameters for the given // display. display_info (void) : m_rx (72), m_ry (72), m_ht (1), m_wd (1), m_dp (0), m_dpy_avail (false), m_msg () { } ~display_info (void) = default; display_info (const display_info&) = default; display_info& operator = (const display_info&) = default; void initialize (void); double x_dpi (void) const { return m_rx; } double y_dpi (void) const { return m_ry; } int height (void) const { return m_ht; } int width (void) const { return m_wd; } int depth (void) const { return m_dp; } bool display_available (void) const { return m_dpy_avail; } std::string message (void) const { return m_msg; } private: // X- and Y- Resolution of the display in dots (pixels) per inch. double m_rx; double m_ry; // Height, width, and depth of the display. int m_ht; int m_wd; int m_dp; bool m_dpy_avail; // Message associated with any initiailization failure. Set if // m_dpy_avail is false. std::string m_msg; }; } #endif