src/BinExpr.cpp

   1 /*    Copyright (C) 2008,  Kristian Rumberg (kristianrumberg@gmail.com)
   2  *
   3  *    Permission to use, copy, modify, and/or distribute this software for any
   4  *    purpose with or without fee is hereby granted, provided that the above
   5  *    copyright notice and this permission notice appear in all copies.
   6  *
   7  *    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   8  *    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   9  *    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  10  *    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  11  *    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  12  *    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  13  *    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  14  *
  15  */
  16
  17 #include "BinExpr.hpp"
  18 #include <iostream>
  19
  20 BinExpr::BinExpr(Expr* a1, Expr* a2): m_a1(a1), m_a2(a2) {}
  21 AddExpr::AddExpr(Expr* n1, Expr* n2) : BinExpr(n1, n2) {}
  22 SubExpr::SubExpr(Expr* n1, Expr* n2) : BinExpr(n1, n2) {}
  23 MulExpr::MulExpr(Expr* n1, Expr* n2) : BinExpr(n1, n2) {}
  24 DivExpr::DivExpr(Expr* n1, Expr* n2) : BinExpr(n1, n2) {}
  25
  26 Number AddExpr::eval() const
  27 {
  28     return left()->eval() + right()->eval();
  29 }
  30
  31 Number SubExpr::eval() const
  32 {
  33     return left()->eval() - right()->eval();
  34 }
  35
  36 Number MulExpr::eval() const
  37 {
  38     return left()->eval() * right()->eval();
  39 }
  40
  41 Number DivExpr::eval() const
  42 {
  43     return left()->eval() / right()->eval();
  44 }