Thread: infinite while loop

Hi Guys,

let say I have a code like the one below, how can make it stop at the scanf everytime? If I enter a wrong input like a char, it start to loop all the way.

Code:

while(sel_case != 0)
{
    scanf("%d",&sel_case);

    switch(sel_case)
    {
          case 1:  
                        test1();
          break;
         
         ~ case 10
    }
}