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Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006,
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This file is part of Octave.
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Octave is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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Octave is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with Octave; see the file COPYING. If not, see
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<http://www.gnu.org/licenses/>.
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#if !defined (octave_tree_unop_h)
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#define octave_tree_unop_h 1
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class octave_value_list;
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tree_unary_expression : public tree_expression
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tree_unary_expression (int l = -1, int c = -1,
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octave_value::unary_op t
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= octave_value::unknown_unary_op)
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: tree_expression (l, c), op (0), etype (t) { }
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tree_unary_expression (tree_expression *e, int l = -1, int c = -1,
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octave_value::unary_op t
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= octave_value::unknown_unary_op)
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: tree_expression (l, c), op (e), etype (t) { }
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~tree_unary_expression (void) { delete op; }
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bool has_magic_end (void) const { return (op && op->has_magic_end ()); }
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tree_expression *operand (void) { return op; }
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std::string oper (void) const;
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octave_value::unary_op op_type (void) const { return etype; }
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// The operand for the expression.
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// The type of the expression.
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octave_value::unary_op etype;
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tree_unary_expression (const tree_unary_expression&);
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tree_unary_expression& operator = (const tree_unary_expression&);
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// Prefix expressions.
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tree_prefix_expression : public tree_unary_expression
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tree_prefix_expression (int l = -1, int c = -1)
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: tree_unary_expression (l, c, octave_value::unknown_unary_op) { }
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tree_prefix_expression (tree_expression *e, int l = -1, int c = -1,
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octave_value::unary_op t
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= octave_value::unknown_unary_op)
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: tree_unary_expression (e, l, c, t) { }
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~tree_prefix_expression (void) { }
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bool rvalue_ok (void) const { return true; }
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octave_value rvalue (void);
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octave_value_list rvalue (int nargout);
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void eval_error (void);
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tree_expression *dup (symbol_table *sym_tab);
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void accept (tree_walker& tw);
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tree_prefix_expression (const tree_prefix_expression&);
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tree_prefix_expression& operator = (const tree_prefix_expression&);
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// Postfix expressions.
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tree_postfix_expression : public tree_unary_expression
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tree_postfix_expression (int l = -1, int c = -1)
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: tree_unary_expression (l, c, octave_value::unknown_unary_op) { }
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tree_postfix_expression (tree_expression *e, int l = -1, int c = -1,
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octave_value::unary_op t
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= octave_value::unknown_unary_op)
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: tree_unary_expression (e, l, c, t) { }
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~tree_postfix_expression (void) { }
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bool rvalue_ok (void) const { return true; }
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octave_value rvalue (void);
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octave_value_list rvalue (int nargout);
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void eval_error (void);
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tree_expression *dup (symbol_table *sym_tab);
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void accept (tree_walker& tw);
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tree_postfix_expression (const tree_postfix_expression&);
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tree_postfix_expression& operator = (const tree_postfix_expression&);
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;;; Local Variables: ***