C++ Q/A Part 1 Posted by Unknown on 4:14 AM

Introduction

Some good C++ questions to ask a job applicant,

How do you decide which integer type to use?

Full Content

1. What should the 64-bit integer type on new, 64-bit machines be?
   
2. What’s the best way to declare and define global variables?
3. What does extern mean in a function declaration?
4. What’s the auto keyword good for?
5. I can’t seem to define a linked list node which contains a pointer to itself.
6. How do I declare an array of N pointers to functions returning pointers to functions returning pointers to characters?
7. How can I declare a function that returns a pointer to a function of its own type?
8. My compiler is complaining about an invalid redeclaration of a function, but I only define it once and call it once. What’s happening?
9. What can I safely assume about the initial values of variables which are not explicitly initialized?
10. Why can’t I initialize a local array with a string?
11. What is the difference between char a[] = “string”; and char *p = “string”; ?
12. How do I initialize a pointer to a function?