view libinterp/corefcn/oct-fstrm.h @ 32103:32313c5e1bfc

Don't use 2-digit exponent format for ticklabels when unnecessary. * graphics.cc (calc_ticklabels): New boolean variable is_2digit_exp. Cycle through ticklabel values using log10 to determine if maximum exponent is greater than or equal to 10. As soon as this condition is found set is_2digit_exp to true and break out of loop. Within ticklabel formatting loop, only print leading '0' if is_2digit_exp is true and the current exponent to be printed is less than 10.
author Rik <rik@octave.org>
date Wed, 31 May 2023 10:44:35 -0700
parents 1daf8bfceac3
children ae4e19c0a2b1 2e484f9f1f18
line wrap: on
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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 1996-2023 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/>.
//
////////////////////////////////////////////////////////////////////////

#if ! defined (octave_oct_fstrm_h)
#define octave_oct_fstrm_h 1

#include "octave-config.h"

#include <fstream>
#include <string>

#include "oct-stream.h"

OCTAVE_BEGIN_NAMESPACE(octave)

class
fstream : public base_stream
{
public:

  fstream (const std::string& nm_arg,
           std::ios::openmode arg_md = std::ios::in | std::ios::out,
           mach_info::float_format flt_fmt = mach_info::native_float_format ());

  OCTAVE_DISABLE_CONSTRUCT_COPY_MOVE (fstream)

  static stream
  create (const std::string& nm_arg,
          std::ios::openmode arg_md = std::ios::in | std::ios::out,
          mach_info::float_format flt_fmt = mach_info::native_float_format ());

  // Position a stream at OFFSET relative to ORIGIN.

  int seek (off_t offset, int origin);

  // Return current stream position.

  off_t tell ();

  // Return nonzero if EOF has been reached on this stream.

  bool eof () const;

  void do_close ();

  // The name of the file.

  std::string name () const { return m_name; }

  std::istream * input_stream ();

  std::ostream * output_stream ();

protected:

  ~fstream () = default;

private:

  std::string m_name;

  std::fstream m_fstream;
};

OCTAVE_END_NAMESPACE(octave)

#endif