C++

Question 1

Pointer to constant data

Answer 1

const int * a; int const * a;

Question 2

Pointer with constant memory address

Answer 2

int * const a = 0xFFFFFFFF;

Question 3

Pointer to constant data and constant address

Answer 3

const int * const a = 0xFF; int const * const a = 0xFF;

Question 4

In-line IF (conditional operator)

Answer 4

condition ? trueResult : falseResult

Question 5

Comma Operator

Answer 5

a = (b=3, b+2); -> b=3; a=b+2;

Question 6

Function Pointer

Answer 6

int (*fn)(int,int)

Question 7

Operator Overloading

Answer 7

ReturnType operator + (OperandType);

ReturnType ClassName::operator+ (OperandType x) { }

Question 8

static Class Members

Answer 8

Shared by all instances of the class

Question 9

friend Functions

Answer 9

These are allowed to have access to private and protected class members

Question 10

friend Class

Answer 10

These are allowed to have access to private and protected class members

Question 11

What are not inherited?

Answer 11

constructor, destructor, operator overloads, friends

Question 12

Inheritence Syntax

Answer 12

class X: public Y, public Z {}

Question 13

virtual Members

Answer 13

Class member that can be redefined in child classes

Question 14

Templates

Answer 14

template functionOrClass;

Question 15

dynamic_cast

Answer 15

Cast of pointer from dervied to base class, checks that the object will be compatible

Question 16

static_cast

Answer 16

Cast between derived and base classes, no check that the object is compatible

Question 17

reinterpret_cast

Answer 17

Cast of pointers of any type

Question 18

const_cast

Answer 18

Adds or removes ‘const’ keyword from a pointer

Question 19

Memory allocation on the stack

Answer 19

alloca