#include
#include
#include
int add_number( int num1, int num2 )
{
int sum;
sum = num1 - num2;
return sum;
}
int main(int argc, char* argv[])
{
int num1, num2;
int return_value;
if( argc < 2 )
{
printf("You need to enter two numbers to add.\n");
printf("addnum.exe num1 num2\n");
return 0;
}
num1 = atoi(argv[1]);
num2 = atoi(argv[2]);
return_value = add_number( num1, num2 );
printf("Sum of %d + %d = %d",num1, num2, return_value );
return 0;
}