Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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convert if else to switch statement 

 

    if (cmd == '+') result = num1 + num2;

    else if (cmd == '-') result = num1 - num2;

    else if (cmd == 'x') result = num1 * num2;

    else if (cmd == '/') result = num1 / num2;

    else if (cmd == 'g')  result = 2 * num1 + num2; // linear g(x,y)

    else {

        cout << "bad operation code\n";

        exit(0);

    }

 

    cout << result << "=" << num1 << cmd << num2 << endl;

}

Expert Solution
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syntax of switch statement 

switch(expression) {
   case 'expression  :
      statement;
      break; //optional
   case 'expression'  :
      statement;
      break; //optional
  
   default : //Optional
      statement(s);
}
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