We discussed the distinction between two areas of memory: the heap and the run-time stack. Suppose that variable p has type int*. Which of the following is a correct C++ statement or statement sequence that makes p point to newly allocated memory in the heap?
Suppose that p is defined to point to memory as in the preceding question. Which of the following stores 25 in the integer variable to which p points.
What is the value of variable x after performing the following sequence of statements?
int x = 50; int* p = &x; *p = 4;
What is the value of variable x after performing the following sequence of statements?
int y = 7; int x = 35; int* p = &x; p = &y;
What does jump( ) return, where jump is writtten below, using function jumpHelper?
void jumpHelper(int x) { x = x + 1; } void jump() { int z = 40; jumpHelper(z); return z; }
What does hop( ) return, where hop is writtten below, using function hopHelper?
void hopHelper(int& x) { x = x + 1; } void hop() { int z = 40; hopHelper(z); return z; }
What does romp( ) return, where romp is written below, using function rompHelper?
void rompHelper(int a, int& b) { b = a + 2; a = b + 1; } int romp() { int x = 4; int y = 25; rompHelper(x,y); return x + y; }
Which of the following will create an array of 30 integers called Orange in the run-time stack?
Which of the following will create an array of 30 integers called Orange in the heap?
Suppose that a C++ program contains the following statements.
int* p; p[0] = 1;Which of the following is a true statement about what happens?