1. #include <iostream>
2.  
3. int chooseOperator()
4. {
5.     std::string operatorInput;
6.     std::cout << "btw im adding more features, and mod, inc, dec aint working yet\n";
7.     std::cout << "What operator would you like to use (sub, div, add, mul, mod, inc, dec)?: ";
8.     std::cin >> operatorInput;
9.  
10.     int operandDecider;
11.     if (operatorInput == "sub")
12.         operandDecider = 1;
13.  
14.     else if (operatorInput == "div")
15.         operandDecider = 2;
16.  
17.     else if (operatorInput == "add")
18.         operandDecider = 3;
19.  
20.     else if (operatorInput == "mul")
21.         operandDecider = 4;
22.  
23.     else if (operatorInput == "mod")
24.         operandDecider = 5;
25.  
26.     else if (operatorInput == "inc")
27.         operandDecider = 6;
28.  
29.     else if (operatorInput == "dec")
30.         operandDecider = 7;
31.  
32.     return operandDecider;
33. }
34.  
35. void process(int operandDecider, double num1, double num2, bool question)
36. {
37.     switch (operandDecider)
38.     {
39.     case 1:
40.         std::cout << num1 - num2 << "\n";
41.          questi
42.         break;
43.     case 2:
44.         std::cout << num1 / num2 << "\n";
45.          questi
46.         break;
47.     case 3:
48.         std::cout << num1 + num2 << "\n";
49.          questi
50.         break;
51.     case 4:
52.         std::cout << num1 * num2 << "\n";
53.          questi
54.         break;
55.     default:
56.         break;
57.     }
58. }
59.  
60. void AskIfWantUse(std::string &isYes;, bool &InvalidInput;, bool &Question;)
61.     {std::cout << "Want to use calculator? (Y/N): ";
62.     std::cin >> isYes;
63.     std::string exited;
64.  
65.     if (isYes == "Y"){
66.         InvalidInput = false;
67.         Question = true;}
68.    
69.     else if (isYes == "N"){
70.         InvalidInput = false;
71.         Question = false;}
72.  
73.         while (InvalidInput == true)
74.         {
75.            std::cout << "Invalid Input! (Y/N): ";
76.            std::cin >> isYes;
77.            if (isYes == "Y")
78.            break;
79.  
80.            if (isYes == "N")
81.             break;
82.    
83.         }
84.     if (isYes == "N")
85.     {
86.         std::cout << "Exited Program";
87.         std::cin >> exited;
88.         Question = false;
89.     }
90. }
91.  
92. int main()
93. {
94.     double num1;
95.     double num2;
96.     int operandDecider;
97.     std::string isYes;
98.     bool InvalidInput = true;
99.     bool Question = false;
100.  
101.     std::cout << "Welcome to Calculator\n";
102.     AskIfWantUse(isYes, InvalidInput, Question);
103.  
104.      if (Questi true){
105.         std::cout << "Enter number 1: ";
106.         std::cin >> num1;
107.         std::cout << "Enter number 2: ";
108.         std::cin >> num2;
109.         operandDecider = chooseOperator();
110.         process(operandDecider, num1, num2, Question); }
111.    
112.  
113.     while (Question == true)
114.     {
115.         AskIfWantUse(isYes, InvalidInput, Question);
116.         if (isYes == "N"){
117.                 break;
118.         }
119.  
120.         std::cout << "Enter number 1: ";
121.         std::cin >> num1;
122.         std::cout << "Enter number 2: ";
123.         std::cin >> num2;
124.         operandDecider = chooseOperator();
125.         process(operandDecider, num1, num2, Question);
126.     }
127.  
128.     return 0;
129. }
130.