1 Array 2 Array3 3 Array3 4 Array3 5 int Array10 6 int x 7 i

1. Array

2. Array[3]

3. &Array[3]

4. *(&Array[3])

5. int Array[10];

6. int x;

7. int* px;

8. &x

9. *px

10. x

Illustration 1: Declarations and References

1. Illustration 1: Which line declares an array?

2. Illustration 1: Which line declares an integer?

3. Illustration 1: Which line declares an integer pointer?

4. Illustration 1: Which line gives the value of the fourth element of an array?

5. Illustration 1: Which line gives the address of the third subscripted value of an array?

6. Illustration 1: Which line specifies the value of an integer?

7. Illustration 1: Which line gives the pointer to the first element of an array?

8. Illustration 1: Which line gives the contents of the address of the fourth element of an array?

9. Illustration 1: Which line gives the address of an integer?

10. Which line dereferences (gives the contents) of an address given by an integer pointer?

1. int x;

2. int cherry[10];

3. foo(x);

4. foo(&x);

5. foo(cherry[3]);

6. foo(cherry, 3);

7. foo(&cherry[3]); Illustration 2: Function calls

11. Illustration 2: Which line declares an integer? 12. Illustration 2: Which line declares an array with 10 elements?

13. Illustration 2: Which line calls foo with a copy of an integer?

14. Illustration 2: Which line calls foo with the address of an integer?

15. Illustration 2: Which line calls foo with the address of the first element of an array?

16. Illustration 2: Which line calls foo with the value of an element of an array?

17. Illustration 2: Which line calls foo with the address of an element of an array which is not the first element?

Solution

1.Line 5 : int Array[10];
Explanation : The above statement declares an array named Array of type integer of size 10.
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2. Line 6: int x;
Explanation : The above statement declares integer variable
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3. Line 7 : int *px;
Explanation : The above statement declares integer pointer that stores the address of integer variable.
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4. Line 2: Array[4]
Explanation : The above statement gives the fourth element of an array, Array
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5. Line 3: &Array[4]
Explanation : The above statement gives address of the third subscripted value of an array.
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6. Illustration 10:x
Explanation : the variable x speicies the value at the variable .x.
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7. Line 1:Array
Explanation : the array name itself represents the address of the first element of the array.
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8.Line 4: *(&Array[3])
Explanation : The above statement gives the value of the array at the address of the third subscript
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9. Line 8: &x
Explanation : & before the variable returns the address of the variable in memory.
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10. Line 9: *px
Explanation : The * dereferencing operator that gives the contents of an address given
by an integer pointer,px.

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11. Line 1: int x
Explanation : The above statement declares integer variable
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12.Line 2 : int cherry[10];
Explanation : The above statement declares an array named cherry of type integer of size 10.
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13. Line 3: foo(x);
Explanation : the above statement foo(x) that takes an element x
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14. Line 3: foo(&x);
Explanation : the above statement foo(&x) that takes an address of element x
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15. No answer for this question in given illustrations.
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16. Line 5: foo(cherry[3])
Explanation: The above statement calls the foo method with the element of the array cherry[3]
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17. Line 5: foo(7cherry[3])
Explanation: The above statement calls the foo method with the addresss of element of the array

cherry[3]element?