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(1)

Fundamentals of Programming

lecture 19

Pointers and Arrays,

Pointer Arithmetic

(2)

Array arguments are addresses

(3)

Array arguments vs Pointers

(4)

Array arguments vs Pointers

(5)

The following are equivalent

(6)

Arrays vs. Pointers

(7)

Arrays vs. Pointers

(8)

Arrays vs. Pointers

(9)

Arrays vs. Pointers

(10)

Arrays vs. Pointers

(11)

Arrays vs. Pointers

(12)

Arrays vs. Pointers

(13)

Arrays vs. Pointers

(14)

Arrays vs. Pointers

(15)

Arrays vs. Pointers

pointerarray7.c

(16)

Arrays vs. Pointers

(17)

Arrays vs. Pointers

(18)

Arrays vs. Pointers

(19)

Arrays vs. Pointers

(20)

Arrays vs. Pointers

(21)

Arrays vs. Pointers

(22)

Arrays vs. Pointers

(23)

Arrays vs. Pointers

pointerarray10.c pointers and arrays are the same right?

(24)

Arrays vs. Pointers

(25)

Arrays vs. Pointers

(26)

Arrays vs. Pointers

(27)

Arrays vs. Pointers

pointerarray11.c

(28)

Arrays vs. Pointers

pointerarray11.c

somehow, similar to int * const p;

(29)

Arrays vs. Pointers: size

(30)

Arrays vs. Pointers: size

(31)

Arrays vs. Pointers: size

pointerarray12.c

Addressed are stored in 8 bytes in

(32)

Arrays vs. Pointers: size

(33)

Arrays vs. Pointers: size

pointerarray12.c

Addressed are stored in 4 bytes in

(34)

Array arguments: size

(35)

Array arguments: size

(36)

Array arguments: size

pointerarray14.c

(37)

Pointer Arithmetic

(38)

Pointer Arithmetic

(39)

Pointer Arithmetic

pointerarithmetic1.c

(40)

Pointer arithmetic: pointer + integer

(41)

Pointer arithmetic: pointer + integer

pointerarithmetic2.c

4 3 2 1

2012 2008 2004 a = 2000

5 Memory

2016

(42)

Pointer arithmetic: pointer + integer

pointerarithmetic2.c

4 3 2 1

2012 2008 2004 a = 2000

Memory

2016 p = 2000

(43)

Pointer arithmetic: pointer + integer

pointerarithmetic2.c

4 3 2 1

2012 2008 2004 a = 2000

5 Memory

2016 p = 2000

p+1 = ?

p+2 = ?

(44)

Pointer arithmetic: pointer + integer

pointerarithmetic2.c

4 3 2 1

2012 2008 2004 a = 2000

Memory

2016 p = 2000

p+1 = 2004

p+2 = 2008

(45)

Pointer arithmetic: pointer + integer

pointerarithmetic2.c

4 3 2 1

2012 2008 2004 a = 2000

5 Memory

2016 p = 2000

p+1 = 2004

p+2 = 2008

(46)

The precedence table

*p+i

*(p+i)

(47)

pointer definition

(48)

pointer definition

(49)

pointer definition

(50)

pointer definition

(51)

pointer arithmetic & arrays

(52)

pointer arithmetic & arrays

pointerarithmetic5.c pointerarithmetic6.c

(53)

pointer arithmetic & arrays

a[0] ≡ *a a[i] ≡ *(a+i)

pointerarithmetic5.c pointerarithmetic6.c

(54)

pointer arithmetic & arrays

(55)

pointer arithmetic & arrays

(56)

pointerarithmetic8.c

(57)

Exercise

(58)

Exercise

(59)

Subtracting two pointers

int a[10];

int *p = a;

int *q = &a[6];

int i = q - p;

(60)

Subtracting two pointers

int a[10];

int *p = a;

int *q = &a[6];

int i = q - p;

Referensi

Unduh sekarang ( PDF - 60 Halaman - 840.06 KB )

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