Q68 What is difference between malloc() and calloc()? July 19, 2015 Gyantoday Most Important Interview Questions In C Leave a comment Share this: Q74 What is difference between NUL and NULL?July 19, 2015Most Important Interview Questions In CQ72 What is difference between *ptr++ and ++*ptr, how they works?July 19, 2015Most Important Interview Questions In CQ76 Explain the difference between an array of pointers and a pointer to an array.July 19, 2015Most Important Interview Questions In C