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Pointers: Beyond the Basics 399

15

• It initializes message[0]to point to the first character of the string “one”,
  message[1]to point to the first character of the string “two”, andmessage[2]to
  point to the first character of the string “three”.
  This is illustrated in Figure 15.4, which shows the relationship between the array of
  pointers and the strings. Note that in this example, the array elements message[3]
  throughmessage[9]aren’t initialized to point at anything.

FIGURE15.4

An array of pointers to

typechar.

message[0]

message[1]

message[2]

message[3]

message[4]

message[5]

message[6]

message[7]

message[8]

message[9]

1000

1556

2012

???????

1000

1556

2012

one\0

two\0

three\0

Now look at Listing 15.5, which is an example of using an array of pointers.

LISTING15.5 message.c. Initializing and using an array of pointers to type

char

1: /* Initializing an array of pointers to type char. */

2:

3: #include <stdio.h>

4:

5: int main( void )

6: {

7: char *message[8] = { “Four”, “score”, “and”, “seven”,

8: “years”, “ago,”, “our”, “forefathers” };

9: int count;

10:

11: for (count = 0; count < 8; count++)

12: printf(“%s “, message[count]);

13: printf(“\n”);

14:

15: return 0;

16: }

Four score and seven years ago, our forefathers

This program declares an array of eight pointers to type charand initializes them

to point to eight strings (lines 7 and 8). It then uses a forloop on lines 11 and 12

to display each element of the array on-screen.

INPUT

OUTPUT

ANALYSIS

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