Thread: array problem

Have two problems with this program:
1. The user is not supposed to enter more than 20 numbers, but the program wont move on unless 20 numbers are enteres.

2. How would i put the bubble sort part of the program into a function to be called. I tried and i kept getting the expression must have pointer-to-object type.

Code:

#include<iostream>
using namespace std;


int main()
{


    int temp;
    int num[20];
        cout<<"Pleas enter a series of numbers(no more than 20): "<<endl;
        for(int i=0; i<20; i++)
    {
        cin>>num[i]; 
    }
    while(!cin){//says while the input is not equal to an interger go to next line
                cout<<"Error, Please enter a series of numbers: "<<endl;
                for(int i=0; i<20; i++)
                {
                    cin.clear();//clears the input from num[i]
                    cin.ignore(256,'\n');//flushes the input stream
                    cin>>num[i];
            }
    }
    cout<<endl; 
    cout<<"Orignally entered array is: "<<endl;


    for(int j=0; j<20; j++)
    {
        cout<<num[j];
        cout<<endl; 
    } 
    cout<<endl;
    for(int i=0; i<19; i++)
    {
        for(int j=0; j<19; j++)
        {
            if(num[j]>num[j+1])
            {
                temp=num[j];
                num[j]=num[j+1];
                num[j+1]=temp; 
            }
} 
} 
cout<<"Sorted Array is: "<<endl;
for(int i=0; i<20; i++)
{
    cout<<num[i]<<endl; 
}
system("pause");
}