[ACCEPTED]-create an object in switch-case-switch-statement

Accepted answer

Score: 12

I can't say for sure with such a vague question, but 5 I'm guessing that you're doing something 4 like this:

switch(foo)
{
case 1:
  MyObject bar;
  // ...
  break;

case 2:
  MyObject bar;
  // ...
  break;
}

This isn't allowed because each 3 case statement has the same scope. You need 2 to provide more scope if you want to use 1 the same variable name:

switch(foo)
{
case 1:
  {
    MyObject bar;
    // ...
    break;
  }

case 2:
  {
    MyObject bar;
    // ...
    break;
  }
}

Score: 1

I suggest avoiding switch-case because of 16 this and other problems. You can allow variable 15 definitions by extra curly braces, but that 14 looks messy and causes two levels of indentation. Other 13 problems are that you can only use integer/enum 12 values for cases, that the break statement cannot 11 be used to break from a loop outside the 10 switch. Forgetting to break is also a very 9 common programming mistake that cannot be 8 detected by the compiler (because it is 7 still valid code) and it leads to hard to 6 debug bugs.

Personally I only use switch-case 5 with enum values, and even then never with 4 a default label. This has the benefit of 3 getting me a compile warning (from GCC) if 2 not all possible values of the enum are 1 handled.

There is nothing wrong with if-elses.

Score: 0

switch (choice)
    {
    case 1:
        {
            cout<<"\nBike object created********"<<endl;
            Bike B1(2,4,50);
            V=&B1;
            V->Display_Details();

            V->CallToll(persons);
           break;
      }

    case 2:
       {  
            cout<<"\n CAR object created********"<<endl;
            Car C1(4,8,50);
            V=&C1;
            V->Display_Details();
            V->CallToll(persons);

         break;

       }
     default:
           cout<<"You have entered an invalid choice...........Please Enter valid choice........"<<endl;


    }

Source: stackoverflow.com

[ACCEPTED]-create an object in switch-case-switch-statement

C++ Switch Statement Case Error

How do I use AS with a switch in swift to get the class type

How does switch compile in Visual C++ and how optimized and fast is it?

C++ Force compile-time error/warning on implicit fall-through in switch

Changing switch variable inside a case

Storing basic arithmetic operators in variables

Error C2360: Initialization of 'hdc' is skipped by 'case' label

Jump bypasses variable initialization in switch statement

break in a case with return.. and for default

default as first option in switch statement?