How to test input is sane

Question

Consider the following simple C program.

//C test

#include

int main()
{
   int a, b, c;

   printf(\"Enter two numbers to add\\n\");
   scan         


        

Answer 1

You can use like:

if( scanf("%d%d",&a,&b) == 2)
{
   //two integer values has been read successfully
   //do your stuff here
}
else
{
   //Wrong input
}