Question

for c++ switch structure, how do i input where the user can enter an angle in either degrees or radians. For example 30 d or 30 D or 1.5 r or 1.5 R? Is there a simple way of inputting this in a switch case?

Answer 1

#include <iostream>

#include <string>

using namespace std;

int main() {

typedef enum {

radian =0, // is 0

degree =1 // is 1

  

} angle;

int choice; // 0, 1, 2

cout << "choice either 0 or 1 0 for radian 1 for degree: ";

cin >> choice;

double angleValue;

cout<<"value of angle ";

cin>> angleValue;

switch (choice)

{

case degree:

cout << angleValue << " D";

break;

case radian:

cout << angleValue << " R";

break;

// ...

}

return 0;

}

you have to use enum as c++ doesnot support string in switch statement

angle; 12 13 int choice; // e, 1, 2 14 15 cout << "choice either 0 or 1 e for radian 1 for degree: " 16 cin > choice; 17 double angleValue; 18 cout<<"value of angle 19 cin>> angleValue; 20 switch (choice) 21 case degree: 23 24 25 26 27 28 29 30 31 return e; 32 cout <angleValue <<"D break; case radian: cout くく anglevalue くく " R"; break; CommandLine Arguments Interactive mode : ON Version: GCC 7.2.0 O Execute Save My Projects Recent Collaborate More Options Result.. . compiLed and executed in 9.847 sec(s) choice either 0 or 1 e for radian 1 for degree: 0 value of angle 50 50 R Act te Wind