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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 1993-2021 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_variables_h)
#define octave_variables_h 1
#include "octave-config.h"
class octave_function;
class octave_user_function;
class octave_value;
class octave_value_list;
class octave_builtin;
class string_vector;
namespace octave
{
class tree_identifier;
}
#include <limits>
#include <string>
#include "lo-ieee.h"
#include "ov-builtin.h"
extern OCTINTERP_API octave_function *
is_valid_function (const octave_value&, const std::string& = "",
bool warn = false);
extern OCTINTERP_API octave_function *
is_valid_function (const std::string&, const std::string& = "",
bool warn = false);
OCTAVE_DEPRECATED (6, "use 'octave::get_function_handle' instead")
extern OCTINTERP_API octave_function *
extract_function (const octave_value& arg, const std::string& warn_for,
const std::string& fname, const std::string& header,
const std::string& trailer);
extern OCTINTERP_API int
symbol_exist (const std::string& name, const std::string& type = "any");
extern OCTINTERP_API std::string
unique_symbol_name (const std::string& basename);
extern OCTINTERP_API octave_value
set_internal_variable (bool& var, const octave_value_list& args,
int nargout, const char *nm);
extern OCTINTERP_API octave_value
set_internal_variable (char& var, const octave_value_list& args,
int nargout, const char *nm);
extern OCTINTERP_API octave_value
set_internal_variable (int& var, const octave_value_list& args,
int nargout, const char *nm,
int minval = std::numeric_limits<int>::min (),
int maxval = std::numeric_limits<int>::max ());
extern OCTINTERP_API octave_value
set_internal_variable (double& var, const octave_value_list& args,
int nargout, const char *nm,
double minval = -octave::numeric_limits<double>::Inf (),
double maxval = octave::numeric_limits<double>::Inf ());
extern OCTINTERP_API octave_value
set_internal_variable (std::string& var, const octave_value_list& args,
int nargout, const char *nm, bool empty_ok = true);
extern OCTINTERP_API octave_value
set_internal_variable (std::string& var, const octave_value_list& args,
int nargout, const char *nm, const char **choices);
extern OCTINTERP_API octave_value
set_internal_variable (int& var, const octave_value_list& args,
int nargout, const char *nm, const char **choices);
#define SET_INTERNAL_VARIABLE(NM) \
set_internal_variable (V ## NM, args, nargout, #NM)
#define SET_NONEMPTY_INTERNAL_STRING_VARIABLE(NM) \
set_internal_variable (V ## NM, args, nargout, #NM, false)
#define SET_INTERNAL_VARIABLE_WITH_LIMITS(NM, MINVAL, MAXVAL) \
set_internal_variable (V ## NM, args, nargout, #NM, MINVAL, MAXVAL)
// in the following, CHOICES must be a C string array terminated by null.
#define SET_INTERNAL_VARIABLE_CHOICES(NM, CHOICES) \
set_internal_variable (V ## NM, args, nargout, #NM, CHOICES)
extern OCTINTERP_API std::string
maybe_missing_function_hook (const std::string& name);
OCTAVE_DEPRECATED (5, "this function will be removed in a future version of Octave")
extern OCTINTERP_API string_vector
get_struct_elts (const std::string& text);
#endif
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