Thread: scanf() protection help

Hello all.
I've been trying to implement a protective measure for my scanf() functions in my program.

Code:

void add_num(void)
{
	int a,b,c;
	
	do
	{
		printf("Enter an integer to be added to\n");
	}
	while (scanf("%d", &a) != 1);

	do
	{
	printf("Enter a second integer to be added to the first\n");
	}
	while (scanf("%d", &b) != 1);
	
	c = (a + b);
	printf("%d + %d = %d\n", a,b,c);
}

The goal is to get the input from the user, and then ask again if scanf doesn't successfully receive input. The problem here is is that when a user give the program bad input, (Like, a character for instance) the while loop just prints the "enter the integer" message on to infinity and doesn't re-evaluate the input.