/C++/How to define global array in c++ in a scope

How to define global array in c++ in a scope

class C {
 int [] x;

 void method A(int size)
 {
   x = new int[size];   // Allocate the array
   for(int i = 0; i < size; i++)
      x[i] = i;         // Initialise the elements (otherwise they contain random data)
   B();
   delete [] x;         // Don't forget to delete it when you have finished
                        // Note strange syntax - deleting an array needs the []
 }

 void method B()
 {
   int n;
   cin >> n;
   cout << x[n];
   // Be warned, if the user inputs a number < 0 or >= size, 
   // you will get undefined behaviour!
  }
}

Source: stackoverflow.com

Similar codes

0 vote290 views1 answer
C++ filesystem read directory
C++
0 vote307 views1 answer
How to make window resizable in sdl
C++
0 vote287 views1 answer
Quicksort taking random pivot
C++
30 votes199 views10 answers
While loop c++
C++
0 vote273 views1 answer
Udo apt install dotnet-sdk-5 permission denied
C++
38 votes315 views6 answers
Print hello world in c++
C++
1 vote282 views1 answer
Uri online judge 3145 solution in c++
C++
2 votes265 views1 answer
How to complie with c++ 17
C++
0 vote267 views1 answer
C++ read entire file into a variable
C++
0 vote300 views2 answers
Iostream c++
C++