onvert 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; }

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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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
Step 1

syntax of switch statement 

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