00001 // 00002 // aegis - project change supervisor 00003 // Copyright (C) 1994, 2002, 2005-2008 Peter Miller. 00004 // 00005 // This program is free software; you can redistribute it and/or modify 00006 // it under the terms of the GNU General Public License as published by 00007 // the Free Software Foundation; either version 3 of the License, or 00008 // (at your option) any later version. 00009 // 00010 // This program is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 // GNU General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with this program. If not, see 00017 // <http://www.gnu.org/licenses/>. 00018 // 00019 00020 #ifndef AEGIS_AER_EXPR_NEG_H 00021 #define AEGIS_AER_EXPR_NEG_H 00022 00023 #include <libaegis/aer/expr.h> 00024 00025 00030 class rpt_expr_neg: 00031 public rpt_expr 00032 { 00033 public: 00037 virtual ~rpt_expr_neg(); 00038 00039 private: 00044 rpt_expr_neg(const rpt_expr::pointer &arg); 00045 00046 public: 00051 static rpt_expr::pointer create(const rpt_expr::pointer &arg); 00052 00053 protected: 00054 // See base class for documentation. 00055 rpt_value::pointer evaluate() const; 00056 00057 private: 00061 rpt_expr_neg(); 00062 00066 rpt_expr_neg(const rpt_expr_neg &); 00067 00071 rpt_expr_neg &operator=(const rpt_expr_neg &); 00072 }; 00073 00074 00079 class rpt_expr_pos: 00080 public rpt_expr 00081 { 00082 public: 00086 virtual ~rpt_expr_pos(); 00087 00088 private: 00093 rpt_expr_pos(const rpt_expr::pointer &arg); 00094 00095 public: 00100 static rpt_expr::pointer create(const rpt_expr::pointer &arg); 00101 00102 protected: 00103 // See base class for documentation. 00104 rpt_value::pointer evaluate() const; 00105 00106 private: 00110 rpt_expr_pos(); 00111 00115 rpt_expr_pos(const rpt_expr_pos &); 00116 00120 rpt_expr_pos &operator=(const rpt_expr_pos &); 00121 }; 00122 00123 #endif // AEGIS_AER_EXPR_NEG_H
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