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C program to print array of pointers to strings and their address
First, let us understand what are the arrays of pointers in C programming language.
Arrays of pointers: (to strings)
It is an array whose elements are ptrs to the base add of the string.
It is declared and initialized as follows −
char *a[ ] = {"one", "two", "three"};Here, a[0] is a pointer to the base add of string "one".
a[1] is a pointer to the base add of string "two".
a[2] is a pointer to the base add of string "three".
Advantages
The advantages of array of pointers are explained below −
Unlink the two dimensional array of characters, in array of strings and in array of pointers to strings, there is no fixed memory size for storage.
The strings occupy only as many bytes as required hence, there is no wastage of space.
Example
The C program demonstrating the concept of printing array of pointers to string and the addresses too is given below −
#include<stdio.h>
#include<string.h>
void main(){
//Declaring string and pointers, for loop variable//
int i;
char *a[5]={"One","Two","Three","Four","Five"};
//Printing values within each string location using for loop//
printf("The values in every string location are :
");
for(i=0;i<5;i++){
printf("%s
",a[i]);
}
//Printing addresses within each string location using for loop//
printf("The address locations of every string values are :
");
for(i=0;i<5;i++){
printf("%d
",a[i]);
}
}Output
When the above program is executed, it produces the following result −
The values in every string location are: One Two Three Four Five The address locations of every string values are: 4210688 4210692 4210696 4210702 4210707
Example 2
Let’s consider another example.
Stated below is a C program demonstrating the concept of array of pointers to string −
#include<stdio.h>
#include<string.h>
void main(){
//Declaring string and pointers//
char string[10]="TutorialPoint";
char *pointer = string;
//Printing the string using pointer//
printf("The string is : ");
while(*pointer!='\0'){
printf("%s",*pointer);
pointer++;
}
}Output
When the above program is executed, it produces the following result −
The string is: TutorialPoint
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