public final void exprMULEx() throws RecognitionException
    {
        Token op = null;
        
        AST ast1 = null, ast2 = null;
        int type = 0;
        
        try {
            // CPP.g:725:3: ( (op= '*' | op= '/' | op= '%' ) exprUNARY exprMULEx | )
            int alt45 = 2;
            int LA45_0 = this.input.LA(1);
            
            if (((LA45_0 == 30) || ((LA45_0 >= 82) && (LA45_0 <= 83)))) {
                alt45 = 1;
            }
            else if (((LA45_0 == EOF) || ((LA45_0 >= 23) && (LA45_0 <= 24)) || ((LA45_0 >= 26) && (LA45_0 <= 27))
                    || (LA45_0 == 29) || ((LA45_0 >= 43) && (LA45_0 <= 44)) || (LA45_0 == 52) || ((LA45_0 >= 57) && (LA45_0 <= 81)))) {
                alt45 = 2;
            }
            else {
                if (this.state.backtracking > 0) {
                    this.state.failed = true;
                    return;
                }
                NoViableAltException nvae = new NoViableAltException("", 45, 0, this.input);
                
                throw nvae;
            }
            switch (alt45)
            {
                case 1:
                    // CPP.g:725:5: (op= '*' | op= '/' | op= '%' ) exprUNARY exprMULEx
                {
                    if (this.state.backtracking == 0) {
                        ast1 = this.in;
                    }
                    // CPP.g:726:5: (op= '*' | op= '/' | op= '%' )
                    int alt44 = 3;
                    switch (this.input.LA(1))
                    {
                        case 30:
                        {
                            alt44 = 1;
                        }
                            break;
                        case 82:
                        {
                            alt44 = 2;
                        }
                            break;
                        case 83:
                        {
                            alt44 = 3;
                        }
                            break;
                        default:
                            if (this.state.backtracking > 0) {
                                this.state.failed = true;
                                return;
                            }
                            NoViableAltException nvae = new NoViableAltException("", 44, 0, this.input);
                            
                            throw nvae;
                    }
                    
                    switch (alt44)
                    {
                        case 1:
                            // CPP.g:726:7: op= '*'
                        {
                            op = (Token) this.match(this.input, 30, FOLLOW_30_in_exprMULEx3189);
                            if (this.state.failed) {
                                return;
                            }
                            if (this.state.backtracking == 0) {
                                type = BinExprAST.STAR;
                            }
                            
                        }
                            break;
                        case 2:
                            // CPP.g:727:7: op= '/'
                        {
                            op = (Token) this.match(this.input, 82, FOLLOW_82_in_exprMULEx3203);
                            if (this.state.failed) {
                                return;
                            }
                            if (this.state.backtracking == 0) {
                                type = BinExprAST.DIV;
                            }
                            
                        }
                            break;
                        case 3:
                            // CPP.g:728:7: op= '%'
                        {
                            op = (Token) this.match(this.input, 83, FOLLOW_83_in_exprMULEx3217);
                            if (this.state.failed) {
                                return;
                            }
                            if (this.state.backtracking == 0) {
                                type = BinExprAST.MOD;
                            }
                            
                        }
                            break;
                        
                    }
                    
                    this.pushFollow(FOLLOW_exprUNARY_in_exprMULEx3234);
                    this.exprUNARY();
                    
                    this.state._fsp--;
                    if (this.state.failed) {
                        return;
                    }
                    if (this.state.backtracking == 0) {
                        ast2 = this.out;
                        this.out = null;
                    }
                    if (this.state.backtracking == 0) {
                        this.in = new BinExprAST((ExprAST) ast1, type, op, (ExprAST) ast2);
                    }
                    this.pushFollow(FOLLOW_exprMULEx_in_exprMULEx3248);
                    this.exprMULEx();
                    
                    this.state._fsp--;
                    if (this.state.failed) {
                        return;
                    }
                    
                }
                    break;
                case 2:
                    // CPP.g:733:5:
                {
                    if (this.state.backtracking == 0) {
                        this.out = this.in;
                    }
                    
                }
                    break;
                
            }
        }
        catch (RecognitionException re) {
            this.reportError(re);
            this.recover(this.input, re);
        } finally {
        }
        return;
    }