Mercurial > octave-libtiff
view libinterp/corefcn/oct-lvalue.h @ 23219:3ac9f9ecfae5 stable
maint: Update copyright dates.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 22 Feb 2017 12:39:29 -0500 |
parents | e9a0469dedd9 |
children | 092078913d54 |
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/* Copyright (C) 1996-2017 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_lvalue_h) #define octave_oct_lvalue_h 1 #include "octave-config.h" class octave_value; class octave_value_list; #include <string> #include "ovl.h" #include "pt-idx.h" #include "symtab.h" class octave_lvalue { public: octave_lvalue (const symbol_table::symbol_reference& s = symbol_table::symbol_reference ()) : sym (s), type (), idx (), nel (1) { } octave_lvalue (const octave_lvalue& vr) : sym (vr.sym), type (vr.type), idx (vr.idx), nel (vr.nel) { } octave_lvalue& operator = (const octave_lvalue& vr) { if (this != &vr) { sym = vr.sym; type = vr.type; idx = vr.idx; nel = vr.nel; } return *this; } ~octave_lvalue (void) { } bool is_black_hole (void) const { return sym.is_black_hole (); } bool is_defined (void) const { return ! is_black_hole () && sym->is_defined (); } bool is_undefined (void) const { return is_black_hole () || sym->is_undefined (); } bool is_map (void) const { return value().is_map (); } void define (const octave_value& v) { sym->assign (v); } void assign (octave_value::assign_op, const octave_value&); void numel (octave_idx_type n) { nel = n; } octave_idx_type numel (void) const { return nel; } void set_index (const std::string& t, const std::list<octave_value_list>& i); void clear_index (void) { type = ""; idx.clear (); } std::string index_type (void) const { return type; } bool index_is_empty (void) const; void do_unary_op (octave_value::unary_op op); octave_value value (void) const; private: symbol_table::symbol_reference sym; std::string type; std::list<octave_value_list> idx; octave_idx_type nel; }; #endif